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Brand Introduction
Shenzhen Kinri Energy has been working hard to continuously enhance the core competitiveness of the enterprise. After more than a decade of effort,Kinri has established an excellent brand image with a good reputation in the field of power supply. As a result,Kinri has been recognized as the highest honor of a Chinese brand, the "Chinese Brand" title. For the enterprise, a brand have true value and significance only by gaining customer's recognition which means not only the uniqueness of the Kinri trademark but also more comprehensively trademark protection by national laws. As Kinri's intangible assets for brand building,Kinri Trademark herald a new leap for expanding global market.

Kinri will continue to build an international brand strategy to meet customer needs by continuously investing in new product research and technological innovation, focusing on building a technology-based enterprise with independent intellectual property rights, forming a protection chain mainly based on key and core technologies by actively applying for invention patents, adapting to global market changes and economic development laws.

Kinri will create higher efficient market competitiveness and continuously meet the latest needs of customers through first-class product quality and enthusiastic service, continuous management reform, efficient process management system operation. See More

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KINRIThree Reasons To Choose KINRI

Is a professional power supply manufacturer based on SMPS’ technology research & development.

Through 15 Years of R&D Technology Accumulation,We have  Built a Benchmark Enterprise in the Industry
Through 15 Years of R&D Technology Accumulation,We have  Built a Benchmark Enterprise in the Industry

Through 15 Years of R&D Technology Accumulation,We have Built a Benchmark Enterprise in the Industry

Kinri Energy focuses on the research and production of switching power supplies. Since establishment, Kinri has always strived for survival with quality. The Switching Power Supplies,Power Adapters and Battery Chargers produced by Kinri comply with safety regulations and environmental standards of various countries, and have advantages such as high cost-effectiveness, stable performance, safety and reliability, and long service life. Kinri has a leading technological advantage in the customized production of switching power supplies in China.
Better Products and More Thoughtful Services
Better Products and More Thoughtful Services

Better Products and More Thoughtful Services

Shenzhen Kinri Energy Technology Co.,Ltd regards product quality and service as life.All products sold by Kinri have passed ISO 9001:2015 quality management system certification and 14001:2015 environmental management system certification. Kinri's product design is based on international safety and environmental standards such as IEC/EN/UL62368-1/61558-1/60335-1, and has passed global certifications such as UL, CE, SAA, PSE, KC, UKCA, GS, BS, CCC, ROHS, REACH, etc.
Quick Response Within 24 Hours Before and After Sales,Can Quickly Customize Worry Free Products
Quick Response Within 24 Hours Before and After Sales,Can Quickly Customize Worry Free Products

Quick Response Within 24 Hours Before and After Sales,Can Quickly Customize Worry Free Products

With first-class application solutions and a professional pre-sales and after-sales service team, we can respond quickly within 24 hours to solve your problems! Switching power supply, power adapter and etc., Kinri not only has a professional team of senior engineers, but also has professional engineers to provide consulting services for customers. Kinri can efficiently customize and produce various satisfactory power products for you, so you don't need to look for other manufacturers at all!

KINRIFactory View

Seeing is believing, using cases to tell you the quality of KINRI

JOULWATT has been granted an invention patent: ·JOULWATT has been granted an invention patent: "A Switching Power Supply and LED Driver Circuit"

Securities Star News: According to data from Qichacha, JOULWATT (688141) has obtained a new invention patent authorization, titled "A Switching Power Supply and LED Driver Circuit". The patent application number is CN201711181885. X, and the authorization date is April 23, 2024.Patent abstractThe present invention discloses a switching power supply and LED driver circuit. By sampling the first end of the main power switch tube, the corresponding output voltage can be obtained by utilizing the relationship between input voltage, duty cycle and output voltage, and can be used to determine whether the output voltage is abnormal. As an integrated circuit, the present invention saves output voltage sampling pins; At the same time, the present invention utilizes a reference generation circuit to generate a reference signal, without the need to set a capacitor at that location, which is beneficial for the integration of the present invention.Attached drawings of patent abstractSince the begi...

2024-04-25
GUEST BLOG: Defense industry embraces the benefits of standardized power supplies ·GUEST BLOG: Defense industry embraces the benefits of standardized power supplies

As 2023 marches on, we are seeing a growing trend within the aerospace and defense electronics industry toward technology standardization, in particular regarding power-delivery networks. The U.S. Department of Defense (DoD) and prime defense contractors are incentivized to push standardized, modular power systems thanks to their inherent reusability, ability to scale across multiple platforms, and the clear benefits of shorter development time and faster time to revenue.John Sturm & Matt Renola, Vicor Corp.While this may seem like a well-defined movement, power supplies – until the advent of hardware standards such as MOSA (Modular Open Systems Approach) and SOSA (Sensor Open Systems Architecture) – were largely an afterthought when it came to shifting from highly-customized designs to standard, off-the-shelf solutions.In an all-too-common scenario, only once the system is specified and the logic and memory subsystems are designed does the question arise: “How a...

2024-04-24
XINGYU CO., LTD has obtained a patent for a single string LED short circuit detection feedback circuit in a switching power supply, which can realize the design of car lighting circuits ·XINGYU CO., LTD has obtained a patent for a single string LED short circuit detection feedback circuit in a switching power supply, which can realize the design of car lighting circuits

On April 23, 2024, the financial sector reported that, according to the announcement of the China National Intellectual Property Administration, Changzhou XINGYU AUTOMOTIVE LIGHTING Co., Ltd. obtained a patent entitled "a single string LED short circuit detection feedback circuit of switching power supply", with the authorization announcement number of CN108575018B, and the application date of August 2017.The patent abstract shows that the present invention relates to a design of a car lighting circuit, in particular to a switch power supply single string LED short circuit detection feedback circuit, including a switch power supply driving chip U2 and a driving circuit connected to the driving chip U2. The 15th pin of the driving chip U2 is connected to the drain of the MOS tube Q3, the source of the MOS tube Q3 is grounded, and one end of the resistor R9 is connected. The gate of the MOS tube Q3 is connected to the positive pole of the voltage regulator tube D3, and the other end of...

2024-04-23
JOULWATT has been granted an invention patent authorization: ·JOULWATT has been granted an invention patent authorization: "Switching Power Supply Driver Power Supply Circuit and Switching Power Supply"

Securities Star News: According to data from Qichacha, JOULWATT (688141) has obtained a new invention patent authorization, titled "Switching Power Supply Driver Power Supply Circuit and Switching Power Supply". The patent application number is CN201711351693.9, and the authorization date is April 19, 2024.Patent abstractThe present invention discloses a switching power supply driving power supply circuit and a switching power supply. The driving power supply circuit is connected to the control end of the switching power supply power transistor, including a power supply capacitor. The first end of the power supply capacitor is connected to the control end of the power transistor, and a voltage regulation signal is generated through the first control signal and pulse signal. The second end of the power supply capacitor receives the voltage regulation signal; When the first control signal is in the first state, the voltage regulation signal is characterized as a pulse state. At this tim...

2024-04-20
JOULWATT has been granted an invention patent: ·JOULWATT has been granted an invention patent: "A frequency regulation circuit, regulation method, and switching power supply for switching power supplies"

Securities Star News: According to data from Qichacha, JOULWATT (688141) has obtained a new invention patent authorization, titled "A Frequency Adjustment Circuit, Adjustment Method and Switching Power Supply for Switching Power Supply". The patent application number is CN202410014318.9, and the authorization date is April 19, 2024.Patent AbstractThis application discloses a frequency regulation circuit, regulation method, and switching power supply for a switching power supply. By adjusting the light load regulation circuit, when the main power switch and the freewheeling switch are turned off for more than a preset time in intermittent working mode, the freewheeling switch is turned on, which increases the frequency of the system and reduces system noise. The freewheeling switch is also adjusted through feedback of the output voltage to stabilize the frequency and output voltage of the system, resulting in low system losses.The attached figure of the patent abstractSince the beginni...

2024-04-20
JOULWATT has been granted an invention patent authorization: ·JOULWATT has been granted an invention patent authorization:

Securities Star News: According to data from Qichacha, JOULWATT (688141) has obtained a new invention patent authorization, titled "Interleaved Parallel Switching Power Supply Control Circuit and Control Method", with patent application number CN201810731929. X and authorization date of April 19, 2024.Patent AbstractThe present invention proposes an interleaved parallel switch power supply control circuit, wherein the interleaved parallel switch power supply comprises a main switch circuit and a slave switch circuit. The control circuit comprises a first operational amplifier, wherein the first input terminal receives a feedback voltage and the second input terminal receives a first reference voltage. The first operational amplifier outputs a reference signal, which is used to control the upper and lower limits of the inductor current in the main switch circuit and the upper and lower limits of the inductor current in the slave switch circuit; The control circuit adjusts the upper and...

2024-04-20
ORIENT-CHIP has been granted a utility model patent: ·ORIENT-CHIP has been granted a utility model patent:

Securities Star News: According to data from Qichacha, ORIENT-CHIP (688061) has recently obtained a utility model patent authorization, titled "A zero crossing detection circuit for improving the light load efficiency of switching power supplies". The patent application number is CN202322136766. X, and the authorization date is April 19, 2024.Patent AbstractThis utility model provides a zero crossing detection circuit for improving the light load efficiency of a switching power supply. The zero crossing detection circuit includes a current sampling circuit, with the input end connected to the switching voltage node and the output end of the switching power supply, and the output end connected to the input end of the offset processing circuit. During the phase of inductor current decrease, the circuit outputs a sampling current proportional to the current flowing through the rectifier tube; The input end of the circuit is connected to the output end of the current sampling circuit, and...

2024-04-19
XJ GROUP has been granted an invention patent authorization: ·XJ GROUP has been granted an invention patent authorization:

Securities Star News: According to data from Qichacha, XJ GROUP (000400) has obtained a new invention patent authorization, titled "A Monitoring Method and Device for Switching Power Supply". The patent application number is CN202111051484.9, and the authorization date is April 16, 2024.Patent abstractThe present invention relates to a monitoring method and device for a switching power supply, which monitors the state of the electrolytic capacitor by obtaining the temperature rise of the electrolytic capacitor, and adaptively switches the standby electrolytic capacitor based on the monitoring results; And monitor the power output in real time to determine whether the sampling data of the power output exceeds the predetermined threshold. By judging whether the electrolytic capacitor is normal based on its temperature rise, it is possible to quickly identify electrolytic capacitors that have aged and reduced capacity, and quickly switch to backup electrolytic capacitors, thereby extendi...

2024-04-18
Convert has been granted an invention patent: ·Convert has been granted an invention patent:

Securities Star News: According to data from Qichacha, Convert (688693) has obtained a new invention patent authorization, titled "An Over temperature Detection Circuit and Switching Power Supply for High Side Switches". The patent application number is CN202410122448.4, and the authorization date is April 16, 2024.Patent Abstract: The present invention relates to the field of power integrated circuit technology and discloses an over temperature detection circuit and a switching power supply with a high side switch. The over temperature detection circuit includes a transistor Q1 and a current source. The collector of the transistor Q1 is used for electrical connection with the power supply VCC, and the base of the transistor Q1 is respectively connected to the emitter and current source of the transistor Q1; In practical use, the present invention detects temperature by utilizing the characteristic that the saturation current of the collector junction of the transistor increases with...

2024-04-18
Analysis Report on the Development Trends of China's Switching Power Supply Industry in 2024 ·Analysis Report on the Development Trends of China's Switching Power Supply Industry in 2024

1. The development trend of the scale of the switching power supply industrySwitching power supply products, with their excellent performance advantages, have become the largest category of power supply products. Their market size has grown rapidly with the growth of China's power supply industry. The market size of China's switching power supply has increased from 121.5 billion yuan in 2016 to 183.2 billion yuan in 2020.With the arrival of the "low-carbon era" with the goal of peaking carbon emissions and achieving carbon neutrality, electronic devices are tending towards miniaturization, thinness, and energy conservation, further driving the growth of the switch mode power supply market.In the future, as downstream enterprises such as new energy electric vehicles and new energy generation (photovoltaic) further increase their requirements and demands for switch mode power supply products in terms of energy conservation, environmental protection, and higher performance, the demand fo...

2024-04-18
Competitive Landscape of China's Switching Power Supply Industry in 2024 ·Competitive Landscape of China's Switching Power Supply Industry in 2024

Taiwan funded enterprises represented by DELTA, MEAN WELL, LITEON, etc. have a competitive advantage in the field of switching power supplies with advanced technology and high value-added products. Since switching power supply enterprises in Chinese Mainland started late, they are insufficient in R&D ability, manufacturing level and service response ability compared with world-class enterprises.Due to the low technological content and added value of their products, many enterprises compete fiercely in the mid to low-end product market, resulting in lower overall market concentration. In recent years, with years of technological accumulation, excellent domestic power supply enterprises have continuously achieved breakthroughs in product independent research and development capabilities and production process levels, which can meet the needs of customers for new products and processes. China has gradually become the main production base for switch power supplies worldwide.Some leadi...

2024-04-18
HONOR has obtained patents for switching power supply circuits and electronic devices, improving adaptability to load devices ·HONOR has obtained patents for switching power supply circuits and electronic devices, improving adaptability to load devices

On April 15, 2024, the financial sector reported that, according to the announcement of the China National Intellectual Property Administration, HONOR Terminal Co., Ltd. has obtained a patent entitled "switching power supply circuit and electronic equipment", the authorization announcement number is CN116742951B, and the application date is September 2022.The patent abstract shows that the present application provides a switching power supply circuit and an electronic device, wherein the switching power supply circuit comprises: an output terminal; Switching power supply chip, outputting output voltage through the output terminal; Sampling circuit, electrically connected to the output terminal and the switching power supply chip, used to generate feedback voltage based on the output voltage and input the feedback voltage to the switching power supply chip; Soft start duration adjustment circuit, electrically connected to the sampling circuit, used to adjust the feedback voltage relati...

2024-04-15
SUNGROW has obtained a patent for a switching power supply and its protective circuit, which can prevent power devices from being damaged due to frequent startup and final heat accumulation ·SUNGROW has obtained a patent for a switching power supply and its protective circuit, which can prevent power devices from being damaged due to frequent startup and final heat accumulation

On April 15, 2024, the financial sector reported that, according to the announcement of the China National Intellectual Property Administration, SUNGROW Co., Ltd. has obtained a patent entitled "a switching power supply and its protective circuit", the authorization announcement number is CN113991611B, and the application date is December 2021.The patent abstract shows that the present invention provides a switching power supply and its protection circuit, which is set between the power supply pin of the control chip in the switching power supply and the ground through its pull-down execution unit; When there is an abnormal output fault in the switching power supply, the pull-down control unit controls the pull-down execution unit to switch to a path, and then pulls down the voltage of the power supply pin of the control chip to ground, so that in the burp protection mode, each charging of the power supply pin of the control chip starts from 0V and ends at the starting point of the co...

2024-04-15
SUNGROW's application for a charging power distribution circuit patent can significantly reduce the number of switches, thereby reducing the space occupied by switch layout ·SUNGROW's application for a charging power distribution circuit patent can significantly reduce the number of switches, thereby reducing the space occupied by switch layout

On April 12, 2024, the financial sector reported that according to the announcement of the China National Intellectual Property Administration, SUNGROW Co., Ltd. applied for a patent entitled "charging power distribution circuit, charging control method and charging pile", with the publication number of CN117879096A, and the application date of December 2023.The patent abstract shows that the present application discloses a charging power distribution circuit, a charging control method, and a charging pile, belonging to the field of power management technology. This application provides a charging power distribution circuit with multiple charging circuits configured to provide charging current; Multiple first switches, the first switch is electrically connected between two charging circuits; Among them, one charging circuit and the charging circuit directly connected through the first switch serve as the charging circuit group, and there is at least one charging circuit outside the ch...

2024-04-12
REAL-DESIGN INTELLIGENCE has obtained a patent for a water purifier circuit with an adapter power supply, which reduces the volume of the water purifier ·REAL-DESIGN INTELLIGENCE has obtained a patent for a water purifier circuit with an adapter power supply, which reduces the volume of the water purifier

On April 8, 2024, the financial sector reported that, according to the announcement of the China National Intellectual Property Administration, Guangdong REAL-DESIGN INTELLIGENCE Technology Co., Ltd. has obtained a patent entitled "a water purifier circuit with adapter power supply", with the authorization announcement number of CN107769590B and the application date of November 2017.The patent abstract shows that the present invention discloses a water purifier circuit with an adapter power supply, including a microprocessor chip circuit, a power supply circuit and a detection circuit, and the power supply circuit has the function of supplying power;The detection circuit detects the components of the water purifier;Integrate the power circuit and detection circuit into one circuit board;The power circuit includes a first power sub circuit and a second power sub circuit. The first power sub circuit provides 24V DC power to the booster pump and solenoid valve of the water purifier;The o...

2024-04-12
Greenworks has obtained utility model patent authorization: ·Greenworks has obtained utility model patent authorization: "Charger and Charging System"

Securities Star News: According to data from Qichacha, Greenworks (301260) has obtained a new utility model patent authorization, named "Charger and Charging System", with patent application number CN202322428615.1 and authorization date of April 12, 2024.Patent abstractA charger and charging system, comprising an input interface, a DC power interface connected to a DC bus, and an auxiliary power interface connected to an auxiliary power bus;Charging control board; Charging gun, connected to garden tools, including a first auxiliary power output terminal and a DC output terminal, with the first auxiliary power output terminal connected to the auxiliary power interface;Power output module, the input end of the power output module is connected to the DC power interface, and the output end of the power output module is connected to the DC output end;And a control switch is set between the first auxiliary power output terminal and the auxiliary power interface. This charger adopts a contr...

2024-04-12
Kaidi Corporation has obtained a design patent authorization: ·Kaidi Corporation has obtained a design patent authorization: "Charger"

Securities Star News: According to data from Qichacha, Kaidi Co., Ltd. (605288) has obtained a new design patent authorization, named "Charger", with patent application number CN202330619915.0 and authorization date of March 26, 2024.Patent abstract1. The name of this appearance design product is: Charger.2. The purpose of this appearance design product is for charging.3. The design key point of this appearance design product is its shape.4. The image or photo that best illustrates the key points of the design: a stereoscopic image.Attached drawings of patent abstractSince the beginning of this year, Kaidi Group has obtained 18 new patent authorizations, an increase of 12.5% compared to the same period last year. Based on the company's mid year financial data for 2023, the company invested 29.1852 million yuan in research and development in the first half of 2023, a year-on-year decrease of 6.34%.

2024-04-12
Yangtze Power applies for a patent for a fast maintenance tool and method for the mobile power supply of large rail mounted lifting machinery to improve labor efficiency and reduce construction safety risks ·Yangtze Power applies for a patent for a fast maintenance tool and method for the mobile power supply of large rail mounted lifting machinery to improve labor efficiency and reduce construction safety risks

On April 12, 2024, the financial sector reported that, according to the announcement of the China National Intellectual Property Administration, China Yangtze Power Co., Ltd. applied for a patent entitled "a kind of rapid maintenance tooling and method for mobile power supply of large rail cranes", with the publication number of CN117865023A and the application date of December 2023.The patent abstract shows that the present invention provides a fast maintenance fixture and method for a mobile power supply of a large rail crane, a fast maintenance fixture for a mobile power supply of a large rail crane, comprising a support platform, a track set on the support platform, and an object to be inspected set on the side of the support platform and below the track. The movable support platform is equipped with a fast maintenance fixture for inspecting the object to be inspected. By setting up a walking trolley mechanism to walk on the support platform, compared to using traditional mobile s...

2024-04-12
BPS has been granted an invention patent authorization: ·BPS has been granted an invention patent authorization: "Switching Power Supply Controller, Switching Power Supply System, and Switching Power Supply System Power Supply Method"

Securities Star News: According to data from Qichacha, BPS (688368) has obtained a new invention patent authorization, titled "Switching Power Supply Controller, Switching Power Supply System, and Switching Power Supply System Power Supply Method". The patent application number is CN202010506989.9, and the authorization date is February 27, 2024.Patent AbstractThe present invention provides a switch power supply controller, a switch power supply system, and a power supply method for a switch power supply system. The switch power supply controller comprises an output voltage power supply unit located within the same package, a built-in energy storage unit, and a logic control unit. The output voltage power supply unit is used to charge the built-in energy storage unit using the output voltage of the switch power supply system, and the built-in energy storage unit is used to provide working voltage to the logic control unit. This not only eliminates the need for external energy storage...

2024-04-11
Hello Microelectronics applies for a patent for voltage conversion circuits and chargers to reduce the possibility of hot carrier injection during the conduction process of switches ·Hello Microelectronics applies for a patent for voltage conversion circuits and chargers to reduce the possibility of hot carrier injection during the conduction process of switches

On April 10, 2024, the financial sector reported that according to the announcement of the China National Intellectual Property Administration, Halo Microelectronics Group Co., Ltd. applied for a patent named "voltage conversion circuit and charger", with the publication number of CN117856614A and the application date of March 2024.The patent abstract shows that the present application discloses a voltage conversion circuit and charger, which relates to the field of electronic circuit technology. The voltage conversion circuit includes an input terminal, an output terminal, a first energy storage branch, a second energy storage branch, a third energy storage branch, and a control branch. The control branch is used to control the conduction and shutdown of switches in the first, second, and third energy storage branches, so that the voltage ratio between the input and output ends is 2N: 1. Among them, in each switching cycle, the tenth switch in the third energy storage branch conducts...

2024-04-11
ORNL researchers develop ·ORNL researchers develop "ride through" control algorithms to enhance the reliability of electric vehicle charging

ORNL researchers are developing algorithms and multilayered communication and control systems that make electric vehicle chargers operate more reliably, even if there is a voltage drop or disturbance in the electric grid. Credit: Andy Sproles/ORNL, US Dept. of EnergyAmerican drivers have long been accustomed to quickly filling up at a gas station with plenty of fuel available, and electric vehicle drivers want their pit stops to mimic this experience. Driver uncertainty about access to charging during long trips remains a barrier to broader EV adoption, even as the U.S. strives to combat climate change by converting more drivers.Researchers at the Department of Energy’s Oak Ridge National Laboratory are working to make EV charging more resilient. “The main focus is to make chargers available for EVs even if there is an electrical disturbance or hardware failure inside or outside the charger,” said ORNL’s Namwon Kim, a lead researcher on the project. “We w...

2024-04-11
Huawei has obtained a patent for a magnetic integrated device and a magnetic integrated switching power supply, which can effectively reduce the board area and volume of magnetic devices ·Huawei has obtained a patent for a magnetic integrated device and a magnetic integrated switching power supply, which can effectively reduce the board area and volume of magnetic devices

On April 11, 2024, the financial sector reported that, according to the announcement of the China National Intellectual Property Administration, Huawei Technologies Co., Ltd. had obtained a patent entitled "a magnetic integrated device and magnetic integrated switching power supply", with the authorization announcement number of CN114121451B and the application date of August 2020.The patent abstract shows that the present embodiment discloses a magnetic integrated device and a magnetic integrated switch power supply, which relates to the field of circuit technology and solves the problem of large board area and volume of magnetic devices in the prior art. The specific scheme is as follows: the magnetic integration device includes magnetic core I, which includes a core body, a first side pillar, a second side pillar, M first winding pillars, and N second winding pillars, where M and N are integers greater than or equal to 1; The core body is connected to the first side pillar, the sec...

2024-04-11
CATL has been granted an invention patent authorization: ·CATL has been granted an invention patent authorization: "Testing System, Method, Electronic Equipment, and Storage Medium for Power Supply Conversion Device"

Securities Star News: According to data from Qichacha, CATL (300750) has obtained a new invention patent authorization titled "Testing System, Method, Electronic Equipment, and Storage Medium for Power Supply Conversion Device". The patent application number is CN202110877278.7, and the authorization date is April 9, 2024.Patent AbstractThe present embodiment provides a testing system, method, and storage medium for a power conversion device, belonging to the field of aging testing technology. The power grid is connected to the AC end of the first power conversion device, and the power grid is also connected to the AC end of the second power conversion device. The DC end of the first power conversion device is connected to the DC end of the second power conversion device, so that a testing circuit can be formed between the power grid, the first power conversion device, and the second power conversion device. In this testing circuit, the first power conversion device and the second pow...

2024-04-11
Quality Intelligence applies for a switching power supply circuit patent to reduce the energy emitted externally ·Quality Intelligence applies for a switching power supply circuit patent to reduce the energy emitted externally

On April 3, 2024, the financial sector reported that, according to the announcement of the China National Intellectual Property Administration, Quality Intelligent Technology Wuxi Co., Ltd. applied for a patent entitled "a switching power supply circuit and system meeting the electromagnetic compatibility requirements of special products", with the publication number of CN117811363A and the application date of December 2023.The patent abstract shows that the present invention relates to a switching power supply circuit that meets the electromagnetic compatibility requirements of special products. The sampling circuit includes a boost module, which is used for boosting the input power supply; Mirror module, which is mirrored along the power input and power output with the boost module. The mirror module is used to counteract the magnetic induction energy generated during the boost process. In the switching power supply circuit used to meet the electromagnetic compatibility requirements...

2024-04-10
ORIENT-CHIP has obtained utility model patent authorization: ·ORIENT-CHIP has obtained utility model patent authorization: "A ROVP circuit, switching power supply controller, and switching power supply"

Securities Star News: According to data from Qichacha, Canrui Technology (688061) has recently obtained a utility model patent authorization, titled "A ROVP Circuit, Switching Power Supply Controller, and Switching Power Supply". The patent application number is CN202322140390. X, and the authorization date is April 2, 2024.Patent Abstract: This utility model discloses a ROVP circuit, a switching power supply controller, and a switching power supply, which relates to the field of switching power supply technology. The ROVP circuit includes a nonlinear positive temperature drift current source circuit, a ROVP port circuit, and a TOVP generator. The nonlinear positive temperature drift current source circuit outputs a nonlinear positive temperature drift current in response to the power signal, the ROVP port circuit converts the nonlinear positive temperature drift current into charging current, and the TOVP generator generates an overvoltage protection enable signal based on the chargi...

2024-04-10
Haier smart home has obtained utility model patent authorization: ·Haier smart home has obtained utility model patent authorization:

Securities Star News: According to data from Qichacha, Haier Smart Home (600690) has newly obtained a utility model patent authorization, titled "Power Supply Group Status Transmission Circuit, Power Supply System and Air Conditioning". The patent application number is CN202321922917.8, and the authorization date is March 26, 2024.Patent AbstractThis application discloses a power supply group status transmission circuit, a power supply system, and an air conditioner, which relates to the technical field of air conditioning power supply equipment. The power supply power supply group status transmission circuit includes a power supply detection module, which has multiple power supply detection branches for the power supply power supply group. Each power supply detection branch is connected to the corresponding power supply in the power supply power supply group, and is used to detect the power supply status of the corresponding power supply power supply to obtain the corresponding power...

2024-04-10
Awinic Electronics has obtained patents for boost circuits and chargers, increasing the safety of boost circuits ·Awinic Electronics has obtained patents for boost circuits and chargers, increasing the safety of boost circuits

On April 4, 2024, the financial sector reported that, according to the announcement of the China National Intellectual Property Administration, Shanghai Awinic Electronic Technology Co., Ltd. has obtained a patent entitled "a boost circuit and charger", with the authorization announcement number of CN109639110B and the application date of December 2018.The patent abstract shows that the present invention provides a boost circuit, comprising a high-voltage boost unit and a switching unit; The switch unit is connected to the high-voltage boosting unit, wherein the control end of the switch unit is connected to the first signal output end of the high-voltage boosting unit; When the high-voltage boosting unit determines that the output voltage of its output terminal is less than the threshold voltage, it outputs a first signal; When the control end of the switching unit receives the first signal, it will turn off itself to ensure the connection and disconnection between the high-voltage b...

2024-04-10
Xiaomi has obtained patents for charging circuits, charging control methods, and devices, which can simultaneously meet the charging requirements of full power compatibility ·Xiaomi has obtained patents for charging circuits, charging control methods, and devices, which can simultaneously meet the charging requirements of full power compatibility

On April 4, 2024, the financial sector reported that, according to the announcement of the China National Intellectual Property Administration, Beijing Xiaomi Mobile Software Co., Ltd. has obtained a patent entitled "Charging circuit, charging control method and device", with the authorization announcement number of CN112821475B and the application date of November 2019.The patent abstract shows that the present disclosure relates to a charging circuit, charging control method, and device. Among them, the charging circuit is applied to the charger that charges the battery, including a central controller and a voltage and current conversion circuit. Among them, the voltage and current conversion circuit includes an input terminal and an output terminal. The input terminal of the voltage and current conversion circuit is electrically connected to the power supply, and the output terminal of the voltage and current conversion circuit is electrically connected to the battery; The voltage...

2024-04-10
PYLONTECH has been granted a utility model patent: ·PYLONTECH has been granted a utility model patent: "A power supply control circuit"

Securities Star News: According to data from Qichacha, Paineng Technology (688063) has newly obtained a utility model patent authorization, titled "A Power Supply Control Circuit", with patent application number CN202322434942.8, and the authorization date is April 5, 2024.Patent Abstract: This application provides a power supply control circuit, which includes a first power module and at least one second power module connected in parallel. The first power module and each second power module both include a battery and a control unit. The battery in the first power module is connected in parallel with the battery in at least one second power module, and the control unit in the first power module is connected in series with the control unit in at least one second power module; The first power module comprises a shutdown circuit, one end of which is connected to the positive pole of a battery in the first power module, and the other end of the shutdown circuit is connected to a control u...

2024-04-09
CVTE Corporation has been granted utility model patent authorization: ·CVTE Corporation has been granted utility model patent authorization: "Protection circuit and switching power supply"

Securities Star News: According to data from Qichacha, CVTE Corporation (002841) has newly obtained a utility model patent authorization, titled "Protection Circuit and Switching Power Supply", with patent application number CN202322069448.6 and authorization date of April 5, 2024.Patent Abstract: This application provides a protection circuit and a switching power supply, which includes a detection module, a switch module, a control module, and a leakage protection module. The detection module is used to detect whether the switching power supply is overheated or overvoltage; The first end of the switch module is connected to the power supply, and its control end is connected to the detection module. The switch module can be configured to conduct when the detection module detects that the switch power supply is overheating or overvoltage; The control module includes protection pins, which are used to achieve the purpose of overvoltage protection or over temperature protection for the...

2024-04-09
Huawei all-around charger (Max 100W) for sale: USB-A/C fusion ·Huawei all-around charger (Max 100W) for sale: USB-A/C fusion

On April 8th, KuaiTech reported that Huawei's all-around charger (Max 100W) has finally gone on sale, with this highly anticipated charger priced at 299 yuan.It offers two color options, cherry pink and white, and features a USB-A/C fusion interface.Supports a maximum charging power of 100W, is compatible with Huawei Supercharge ultra fast charging, and has passed the China Fusion Fast Charging UFCS protocol certification.According to the official introduction, this charger has an impressive charging speed. For Huawei nova 12 Pro, it only takes 10 minutes to replenish 60% of the battery; Mate 60 Pro can be charged to 98% in 30 minutes; The Mate X5 is charged to 86% within 30 minutes.In addition, Max 100 is compatible with various fast charging protocols such as PD, PPS, QC, etc., and is suitable for devices with various operating systems such as iOS, HarmonyOS, Android, etc.However, this charger adopts a fused port design, allowing users to only plug in one USB-A or USB-C cable at the...

2024-04-09
ZTE applies for a patent on lightning protection circuit and protection method for power supply, improving the problems of large sampling delay and low sensitivity in lightning protection ·ZTE applies for a patent on lightning protection circuit and protection method for power supply, improving the problems of large sampling delay and low sensitivity in lightning protection

On April 9, 2024, the financial sector reported that according to the announcement of the China National Intellectual Property Administration, ZTE Corporation applied for a patent entitled "Lightning protection circuit and protection method of power supply", with the publication number of CN117856157A and the application date of September 2022.The patent abstract shows that the present application provides a lightning protection circuit and protection method for a power supply, which relates to the field of circuit technology and is used to improve the common problems of large sampling delay and low sensitivity of input lightning protection in totem bridge free PFC circuits. The circuit includes: a first current detection circuit, a control circuit, a first element, and a second element. The cathode of the first element is coupled with the positive output terminal of the totem bridge free PFC circuit, the anode of the first element is coupled with the cathode of the second element, an...

2024-04-09
Huawei applies for patents on switch mode power supply circuits, power adapters, and charging systems, which can reduce power loss ·Huawei applies for patents on switch mode power supply circuits, power adapters, and charging systems, which can reduce power loss

On April 9, 2024, the financial sector reported that according to the announcement of the China National Intellectual Property Administration, Huawei Technologies Co., Ltd. applied for a patent entitled "switching power supply circuit, power adapter and charging system", with the publication number of CN117856633A and the application date of September 2022.The patent abstract shows that a switching power supply circuit, power adapter, and charging system involve the field of electronic technology and can reduce power loss. Switching power supply circuit, including: control chip, power supply circuit, power supply control circuit, and optocoupler circuit; The optocoupler circuit is configured to output feedback voltage to the power supply control circuit; The power supply control circuit is configured to control the voltage output from the power supply circuit to the power pin of the control chip based on feedback voltage.

2024-04-09
Huamai Technology has been granted an invention patent authorization: ·Huamai Technology has been granted an invention patent authorization:

Securities Star News: According to data from Qichacha, Huamai Technology (603042) has obtained a new invention patent authorization, titled "A Smart Dust Cap for Adapters", with patent application number CN201810724677.8 and authorization date of April 5, 2024.Patent AbstractThe present invention discloses an adapter intelligent dust cap, which includes a base, a cover plate, a first spring, a second spring, a printed circuit board, and a chip. The base comprises a plug located at the front end, and a baffle is set at the root of the plug. The tail of the base has a protruding handle partition, and there is a hollow cavity between the handle partition and the baffle. There are two I-shaped grooves inside the cavity for installing the first spring and the second spring, respectively; The bottom of the cavity is equipped with a square groove for fixing the chip, and the first and second spring are respectively in contact and conductive with the positive and negative poles of the chip at...

2024-04-08
AVIC Optoelectronics has obtained a patent for an adapter and printed circuit board connector component, simplifying the structure of printed circuit board connector components ·AVIC Optoelectronics has obtained a patent for an adapter and printed circuit board connector component, simplifying the structure of printed circuit board connector components

On April 8, 2024, the financial sector reported that, according to the announcement of the China National Intellectual Property Administration, AVIC Optoelectronics Technology Co., Ltd. has obtained an item entitled "An adapter and printed board connector assembly", the authorization announcement number is CN113904144B, and the application date is September 2021.The patent abstract shows that the present invention relates to an adapter and a printed circuit board connector assembly. The adapter is used to insert and connect the printed circuit board from bottom to top, including insulators and contacts. The contacts have a spring arm for elastic contact with the inserted printed circuit board. At least two front and rear arranged contact components form a contact component group, which is used to coordinate with the elastic contact arm on the left side of the plug-in printed board and the elastic contact arm on the right side of the plug-in printed board to clamp the plug-in printed b...

2024-04-08
INJOINIC has obtained patents for sampling resistor short circuit protection circuits and fast charging chargers, providing convenient and effective short circuit protection control for circuits ·INJOINIC has obtained patents for sampling resistor short circuit protection circuits and fast charging chargers, providing convenient and effective short circuit protection control for circuits

On April 8, 2024, the financial sector reported that, according to the announcement of the China National Intellectual Property Administration, Shenzhen INJOINIC Technology Co., Ltd. had obtained a patent entitled "a sampling resistance short circuit protection circuit and a fast charging charger", with the authorization announcement No. CN114336533B and the application date of October 2020.The patent abstract shows that the present invention provides a sampling resistor short circuit protection circuit, comprising a switch control circuit, a logic control circuit, a detection sampling circuit, and a transmission path switch. The switch control circuit is used to periodically emit a first conduction signal and a first turn off signal; The logic control circuit is used to detect and detect the first sampling electrical signal of the sampling circuit, collect the first conduction signal and first turn off signal of the switch control circuit, obtain the switch cycle and conduction time...

2024-04-08
ZTE announces international patent application: ·ZTE announces international patent application: "Lightning protection circuit and protection method for power supply"

Securities Star News: According to data from Qichacha, ZTE (000063) has announced an international patent application titled "Lightning Protection Circuit and Protection Method for Power Supply" with patent application number PCT/CN2023/117281. The international publication date is April 4, 2024.The patent details are as follows:Image source: World Intellectual Property Organization (WIPO)Since the beginning of this year, ZTE has announced 511 international patent applications, an increase of 13.81% compared to the same period last year. Based on the financial data of the company's 2023 annual report, the company invested 25.289 billion yuan in research and development, a year-on-year increase of 17.07%.

2024-04-08
Wellsun Intelligence has obtained a patent for a dual transistor flyback switching power supply with clamp protection, solving the problem of high voltage on the second switching transistor in the switching power supply ·Wellsun Intelligence has obtained a patent for a dual transistor flyback switching power supply with clamp protection, solving the problem of high voltage on the second switching transistor in the switching power supply

On April 8, 2024, the financial sector reported that, according to the announcement of the China National Intellectual Property Administration, Zhejiang Wellsun Intelligent Technology Co., Ltd. had obtained a patent entitled "a dual tube flyback switching power supply with clamp protection", with authorization announcement No. CN110138229B and application date of June 2019.The patent abstract shows that the present invention discloses a dual transistor flyback switching power supply with clamp protection, comprising: a first switch transistor, a second switch transistor, a switch transistor protection circuit, a clamp protection circuit, a resistor, a voltage regulator diode, a control circuit, a high-frequency transformer, an absorption circuit, an output rectification and filtering circuit; The first switch tube is connected in series with the second switch tube, and the second switch tube follows the first switch tube for synchronous conduction or cutoff. A switch tube protection c...

2024-04-08
Anke Innovation has applied for a patent for wireless charging detection method, allowing both chargers to enter charging mode when there is interference when they are close together ·Anke Innovation has applied for a patent for wireless charging detection method, allowing both chargers to enter charging mode when there is interference when they are close together

On April 5, 2024, the financial sector reported that according to the announcement of the China National Intellectual Property Administration, Anke Innovation Technology Co., Ltd. applied for a project named "Wireless charging detection method, detection circuit and computer storage medium", with the public number of CN117825787A and the application date of September 2022.The patent abstract shows that the present application relates to the field of wireless charging technology and discloses a wireless charging detection method, detection circuit, and computer storage medium. The wireless charging detection method includes: collecting the current of the first charger through a current acquisition module to obtain a voltage waveform; After detecting that the device to be charged is placed on the first charger and determining that the second charger is in a charging state, obtain the voltage waveform within the first preset time as the first voltage waveform; Compare the first voltage w...

2024-04-07
Gree Electric Appliances applies for patents on anti backflow control circuits, bidirectional Buck/Boost converters, power circuits, and electrical equipment, effectively preventing energy loss caused by inductor current backflow in the circuit ·Gree Electric Appliances applies for patents on anti backflow control circuits, bidirectional Buck/Boost converters, power circuits, and electrical equipment, effectively preventing energy loss caused by inductor current backflow in the circuit

On April 5, 2024, the financial sector reported that according to the announcement of the China National Intellectual Property Administration, Zhuhai Gree Electric Appliance Co., Ltd. applied for a patent entitled "backflow prevention control circuit and two-way Buck/Boost converter, power circuit, and electrical equipment", with the publication number of CN117833653A, and the application date of December 2023.The patent abstract shows that the present invention provides a backflow prevention control circuit and method for a bidirectional Buck/Boost converter, as well as a bidirectional Buck/Boost converter, power supply circuit, and electrical equipment. The circuit adds a voltage sampling circuit and a voltage detection circuit to increase the sampling of the inductor terminal voltage, so that when the load circuit is lightly loaded or unloaded, it can timely determine whether there is a risk of backflow of the inductor current. When determining the risk of backflow, the correspondi...

2024-04-07
REAL-DESIGN Intelligent Obtained Invention Patent Authorization: ·REAL-DESIGN Intelligent Obtained Invention Patent Authorization:

Securities Star News: According to data from Qichacha, REAL-DESIGN Intelligence (301135) has obtained a new invention patent authorization, titled "A Water Purifier Circuit with Adaptor Power Supply", with patent application number CN201711193331.1 and authorization date of April 5, 2024.Patent abstractThe present invention discloses a water purifier circuit with an adapter power supply, including a microprocessor chip circuit, a power supply circuit and a detection circuit, and the power supply circuit has the function of supplying power; The detection circuit detects the components of the water purifier; Integrate the power circuit and detection circuit into one circuit board; The power circuit includes a first power sub circuit and a second power sub circuit. The first power sub circuit provides 24V DC power to the booster pump and solenoid valve of the water purifier; The output stage of the first power supply sub circuit is electrically connected to the input stage of the second...

2024-04-07
Zhida Technology adds patent information authorization: ·Zhida Technology adds patent information authorization: "A new type of POS machine power circuit"

Zhida Technology (873762) has added patent information, with Zhida Technology as the patent holder and inventors including Zhang Da, Sun Hongfei, Yong Jilin, Luan Feng, and Zou Feng. The patent authorization date is March 26, 2024, and the patent name is "A New POS Machine Power Circuit". The patent type is a Chinese utility model patent, and the patent application number is CN202322012702.9.The patent abstract shows that the present utility model discloses a novel POS machine power supply circuit, which includes a power supply, a primary BUCK-BOOST power supply circuit, a secondary power BUCK circuit, and an enable control circuit; The secondary power supply BUCK circuit comprises a first and second stage BUCK circuit and a second and second stage BUCK circuit; The power supply is electrically connected to the first stage BUCK-BOOST power circuit, and the first stage BUCK-BOOST power circuit is electrically connected to the first and second stage BUCK circuits and the second stage BU...

2024-04-07
China FAW has applied for a power supply control patent, which can reduce the significant consumption of battery power during vehicle parking ·China FAW has applied for a power supply control patent, which can reduce the significant consumption of battery power during vehicle parking

On April 6, 2024, the financial sector reported that, according to the announcement of the China National Intellectual Property Administration, FAW Corporation of China applied for a patent entitled "power supply control method, device, on-board terminal and vehicle", with the publication number of CN117818513A and the application date of December 2023.The patent abstract shows that the present application relates to a power supply control method, device, onboard terminal, and vehicle. The method comprises: determining whether the target vehicle is in a closed state based on the CAN bus signal of the controller local area network of the target vehicle; If so, monitor the static current of the target vehicle and determine if there are any abnormalities in the static current; When it is determined that there is an abnormality in the static current, disconnect the power relay of the target vehicle to control it to enter a locked state; Among them, in the locked state, the power supply of...

2024-04-07
Tonghui Electronics has obtained an invention patent authorization: ·Tonghui Electronics has obtained an invention patent authorization: "Voltage detection circuit and method for precision voltmeter used for high internal resistance power supply measurement"

Securities Star News: According to data from Qichacha, Tonghui Electronics (833509) has obtained a new invention patent authorization, titled "Voltage Detection Circuit and Method for Precision Voltage Meters Used for High Internal Resistance Power Supply Measurement". The patent application number is CN202111548643.6, and the authorization date is April 2, 2024.Patent AbstractThe present invention relates to a voltage detection circuit and method for a precision voltmeter used for measuring high internal resistance power sources, including an input clamp circuit, in-phase following circuit, bootstrap circuit, and range selection circuit. The present invention increases the input resistance of the voltmeter to over 200T Ω, reduces the input bias current to below 5fA, solves the problem that ordinary voltmeters cannot measure high internal resistance voltage sources, and also ensures the accuracy of the measurement results to reach 100ppm.Since the beginning of this year, Tonghui...

2024-04-03
Mentech has obtained patents for biphasic coupling inductors and power supplies, reducing the height of biphasic coupling inductors and making them lightweight and thin ·Mentech has obtained patents for biphasic coupling inductors and power supplies, reducing the height of biphasic coupling inductors and making them lightweight and thin

On April 1, 2024, the financial sector reported that, according to the announcement of the China National Intellectual Property Administration, Dongguan Mentech Co., Ltd. obtained a project entitled "A Biphase Coupling Inductor and Power Supply", with the authorization announcement number of CN107946046B, and the application date of December 2017.The patent abstract shows that an embodiment of the present invention discloses a biphasic coupled inductor and a power supply, comprising a first magnetic core, a second magnetic core, a first winding resistance, and a second winding resistance, with the first and second magnetic cores directly connected; There are 5 magnetic columns on the side connected to the second magnetic core in the first magnetic core. Each magnetic column is respectively the first side column, the first secondary center column, the main center column, the second secondary center column, and the second side column. A wire groove is formed between each adjacent two ma...

2024-04-03
ORIENT-CHIP Technology has been granted a utility model patent: ·ORIENT-CHIP Technology has been granted a utility model patent: "A ROVP circuit, switching power supply controller, and switching power supply"

According to data from Qichacha, ORIENT-CHIP Technology (688061) has recently obtained a utility model patent authorization, titled "A ROVP Circuit, Switching Power Supply Controller, and Switching Power Supply". The patent application number is CN202322140390. X, and the authorization date is April 2, 2024.Patent AbstractThis utility model discloses a ROVP circuit, a switching power supply controller, and a switching power supply, which relates to the field of switching power supply technology. The ROVP circuit includes a nonlinear positive temperature drift current source circuit, a ROVP port circuit, and a TOVP generator. The nonlinear positive temperature drift current source circuit outputs a nonlinear positive temperature drift current in response to the power signal, the ROVP port circuit converts the nonlinear positive temperature drift current into charging current, and the TOVP generator generates an overvoltage protection enable signal based on the charging current; The cha...

2024-04-03
TSMC has obtained patents for power supply devices, semiconductor process systems, and power management methods ·TSMC has obtained patents for power supply devices, semiconductor process systems, and power management methods

TSMC has obtained patents for power supply devices, semiconductor process systems, and power management methods, enabling the power supply device to enter emergency backup modeOn April 1, 2024, the financial sector reported that, according to the announcement of the China National Intellectual Property Administration, Taiwan Integrated Circuit Manufacturing Co., Ltd. had obtained a patent entitled "Power Supply Device, Semiconductor Process System and Power Management Method", with the authorization announcement number of CN112751406B, and the application date of October 2019.The patent abstract shows that a power supply device is provided, including a power supply unit, a power sensor, and a control unit. The power unit includes a first power supply and a second power supply in parallel configuration, which respectively provide the first output power and the second output power to the semiconductor process equipment. The power sensor senses whether the output parameters of the first...

2024-04-03
Samsung launches 10000mAh Wireless Battery Pack U2510 ·Samsung launches 10000mAh Wireless Battery Pack U2510

IT Home reported on April 2nd that Samsung has launched a mobile power supply model EB-U2510 on JD.com today. This mobile power supply supports wireless charging and has a capacity of 10000mAh. It will be available for sale on April 11th with an initial price of 249 yuan.Wireless power on-the-goEffortlessly power up various devices wirelessly using the easy-to-carry 7.5W Battery Pack. Just place your device on the pack to receive a quick boost. Compatible with phones, watches, buds, and other devices for seamless wireless charging. Charge 3 devices simultaneously (2 wired + 1 wireless).Power up in a flashThe 25W high-capacity 10,000mAh Battery Pack has wired super-fast charging which allows you to rapidly recharge up to 2 devices simultaneously, as well as the battery pack itself when it’s low, giving you speed and power when you need it.Double the ports,twice the chargeThe Dual Port charging feature allows simultaneous charging of two devices, making it perfect for travel, offi...

2024-04-03
Vicor 48V power architecture can support 12V systems ·Vicor 48V power architecture can support 12V systems

Tesla’s new CyberTruck has entirely eliminated the traditional 12V low-voltage power network in favor of an all-48V configuration. While this is likely the end game for most automakers, power modules enable an immediate, easy transition to 48V—retaining all reliable, legacy 12V devices— while planning for the 48V vehicle of the future.New 48V vehicles don’t need a separate 12V battery to support lower-voltage systemsVicor power modules convert high-voltage from the EV's battery to usable levels for devices on board.Electric power module supplier Vicor Corp. is pointing out that automakers can enjoy the benefits of 48V electric systems in their vehicles without immediately replacing the many familiar 12V devices employed in their cars.Tesla’s new CyberTruck has entirely eliminated the traditional 12V low-voltage power network in favor of an all-48V configuration. While this is the likely end game for other automakers, those companies will want to take time...

2024-04-02
Cracking down on the counterfeiting of electric bicycle chargers, the police have conducted centralized investigations and crackdowns on multiple counterfeit processing points ·Cracking down on the counterfeiting of electric bicycle chargers, the police have conducted centralized investigations and crackdowns on multiple counterfeit processing points

Different brands of electric bicycles come with matching original chargers. If consumers use mismatched counterfeit chargers, it will not only damage the battery, but also pose a great safety risk of fire and explosion. Recently, a gang has been prosecuted by Jiangsu procuratorial organs for producing and selling counterfeit electric vehicle chargers.In August 2022, Mr. Wang from Yangzhou, Jiangsu spent 15 yuan online to purchase a certain brand of electric bicycle charger, but during the charging process, he discovered a problem.Mr. Wang, a citizen of Yangzhou: Not only does it feel hot, but it also has bulges. Later, he asked the store to return it, and after returning it once, he found that this situation still exists.Mr. Wang felt that he might have bought counterfeit goods, and he had previously seen a fire accident caused by charging in the news. Realizing the seriousness of the situation, he chose to call the police.After receiving the alarm, the police first contacted the manu...

2024-04-02
Greenway has obtained utility model patent authorization: ·Greenway has obtained utility model patent authorization: "Isolation power supply drive circuit and power battery"

Securities Star News: According to data from Qichacha, Greenway (688345) has recently obtained a utility model patent authorization, titled "Isolation Power Drive Circuit and Power Battery", with patent application number CN202321781248.7 and authorization date of March 15, 2024.Patent abstractThis application provides an isolated power supply driving circuit and a power battery. The isolation power drive circuit mentioned above includes an isolator and an input enable circuit; The input enabling circuit includes a first electronic switch tube, a second electronic switch tube, a first resistor, and a second resistor. The input end of the isolator is connected to the first end of the first electronic switch tube, the input end of the isolator is also connected to the first end of the first resistor, the second end of the first resistor is connected to the control end of the first electronic switch tube, the second end of the first resistor is also connected to the first end of the seco...

2024-04-02
TonHe Technology has obtained a high safety module DC power supply patent, ensuring the stable operation of the circuit ·TonHe Technology has obtained a high safety module DC power supply patent, ensuring the stable operation of the circuit

On March 28, 2024, the financial sector reported that, according to the announcement of the China National Intellectual Property Administration, Shijiazhuang TonHe Electronic Technology Co., Ltd. had obtained a patent entitled "a high safety module DC power supply", with the authorization announcement number of CN113922476B and the application date of September 2021.The patent abstract shows that the present invention relates to a DC power supply device, specifically to a high safety module group DC power supply. It includes multiple power supply placement enclosures, with a power distribution controller installed inside the enclosure. One side of the power supply placement enclosure is equipped with a connection plug for connecting circuits. The interior of the power distribution controller includes an APFC converter, two 220V DC choppers, and a 12V DC chopper. The present invention connects multiple batteries in parallel, making each battery a unit for use. When one of the batteries...

2024-04-02
Asahi Kasei Microdevices’ New Current Sensor Enables Dramatically Smaller On-Board Chargers for Electric Vehicles ·Asahi Kasei Microdevices’ New Current Sensor Enables Dramatically Smaller On-Board Chargers for Electric Vehicles

TOKYO & NEW YORK & DÜSSELDORF, Germany--(BUSINESS WIRE)--Asahi Kasei Microdevices Corporation (AKM) has started mass production of the CZ39 series of coreless current sensors. The CZ39 device family is particularly well-suited to electric vehicle (EV) applications due to its 100 ns response time, low heat generation, and noise immunity. These properties are highly compatible with the silicon carbide (SiC)- and gallium nitride (GaN)- based power devices favored by OEMs for their reduced form factor and high efficiency. As such, the CZ39 series allows for the implementation of substantially smaller, lighter, and more accurate on-board charging systems for EVs.Fast current measurementsThe CZ39 series features a high-sensitivity compound Hall element that enables a response time of 100 ns, making it possible for current measurements to keep up with the high switching speed of SiC- and GaN-based power solutions. This allows OEMs to take advantage of those devices’ smalle...

2024-04-02
Xu Ji Electric has obtained utility model patent authorization: ·Xu Ji Electric has obtained utility model patent authorization: "An auxiliary power supply protection circuit and auxiliary power supply"

Securities Star News: According to data from Qichacha, Xuji Electric (000400) has recently obtained a utility model patent authorization, titled "An Auxiliary Power Supply Protection Circuit and Auxiliary Power Supply", with patent application number CN202322163721.1 and authorization date of March 29, 2024.Patent AbstractThis utility model belongs to the technical field of power supply protection circuits, and specifically relates to an auxiliary power supply protection circuit and an auxiliary power supply. The protection circuit includes an undervoltage protection module, which includes a control chip and a first voltage divider branch; The control chip is used to connect the controlled end of the control switch of the auxiliary power supply, and the first voltage branch is used to connect to the input end of the auxiliary power supply and the ground; The first voltage divider is sequentially connected to the ground from the input end of the auxiliary power supply on the first volt...

2024-04-01
Shilan Micro applies for a patent on switch mode power supply and its control circuit and control method ·Shilan Micro applies for a patent on switch mode power supply and its control circuit and control method

Shilan Microelectronics has applied for a patent for a switch mode power supply, its control circuit, and control method to improve voltage sampling accuracy under light and no-load conditions.On March 30, 2024, the financial sector reported that according to the announcement of the China National Intellectual Property Administration, Hangzhou Shilan Microelectronics Co., Ltd. applied for a patent entitled "switching power supply and its control circuit, control method", with the publication number of CN117792104A and the application date of December 2023.The patent abstract shows that the present application discloses a switch mode power supply and its control circuit and control method. The control circuit includes a feedback detection module, which generates feedback sampling pulses based on the voltage feedback signal of the power supply voltage provided by the auxiliary winding; The loop control module obtains a voltage sampling signal based on the feedback sampling pulse voltage...

2024-04-01
Sanchen Electric Appliances has obtained a patent for microcomputer controlled DC power supply, and the power supply body can be lifted to any angle ·Sanchen Electric Appliances has obtained a patent for microcomputer controlled DC power supply, and the power supply body can be lifted to any angle

On March 28, 2024, the financial sector reported that, according to the announcement of the China National Intellectual Property Administration, Zhejiang Sanchen Electric Appliance Co., Ltd. had obtained a patent entitled "a microcomputer controlled DC power supply", the authorization announcement number was CN116961372B, and the application date was July 2023.The patent abstract shows that the present invention discloses a microcomputer controlled DC power supply, comprising a power supply main body and a base. A support seat is rotatably arranged on the base, and the support seat is fixedly connected to the power supply main body; It also includes a pre selection component, which is used to pre select the angle at which the support seat is lifted upwards; Control component, which is used to facilitate the movement of the power supply main body and adjust the angle of the support seat; Compensation component, pre selected component to fix and lock the support seat. After the support...

2024-04-01
Lenovo Legion C170 GaN charger debuts with 170W PD 3.0 fast charging ·Lenovo Legion C170 GaN charger debuts with 170W PD 3.0 fast charging

Lenovo has introduced a new power adapter in China. With an initial price of CNY 249 (around $34), the Legion C170 GaN charger can deliver 170W of power and is compatible with multiple protocols, including PD 3.0.The Lenovo Legion C170 GaN charger has been launched in China as a slim laptop power adapter for everyday carry. Measuring 71 x 71 x 31 mm and weighing around 245 grams, the power adapter can deliver 170W of fast charging. Combined with the CtoSlim cable, it allows most of the recently launched Legion laptops to run in the "performance" mode.Speaking of the CtoSlim cable, it bundles with the Legion C170 power adapter and has a built-in E-Mark chip. This chipset allows the setup to identify the connected laptop and ensure safe charging. However, that's not the only safety mechanism that Lenovo has implemented. The adapter also has over-current, over-voltage, short circuit, over-temperature, and many other protections.Moreover, the Lenovo Legion C170 supports multiple charging...

2024-04-01
Autocar and Rocsys are deploying automated hands-free EV chargers for trucks ·Autocar and Rocsys are deploying automated hands-free EV chargers for trucks

Severe-duty vehicle manufacturer Autocar has partnered with Rocsys to deploy the latter’s hands-free EV chargers, expanding the technology across the former’s electric terminal tractors. Together, Autocar and Rocsys have already secured an initial fleet customer en route to full-scale integration of easier, intuitive charging infrastructure across the entire segment.Autocar, LLC describes itself as the first specialized truck brand in North America, developing, manufacturing, and selling severe-duty vocational trucks explicitly built to its commercial customers’ exact specifications and needs.That lineup includes its all-electric E-ACTT terminal tractor (seen above), which is now getting some hands-free EV charging assistance from Rocsys. Rocsys is a specialist in nascent technologies that pertain to hands-free EV charging.The company currently develops a series of next-generation soft robotics, AI-driven computer vision, and data-driven services to optimize uptime...

2024-04-01
At least 200000 new charging facility interfaces will be built in Beijing this year to prevent electric bicycle fires ·At least 200000 new charging facility interfaces will be built in Beijing this year to prevent electric bicycle fires

To effectively prevent electric bicycle fire accidents and meet the outdoor safety charging needs of citizens, Beijing plans to build at least 200000 charging facility interfaces this year, with 84000 completed so far.As of the end of March this year, the total number of charging facility interfaces built in Beijing has exceeded 1 million.At the first quarter safety production and fire protection press conference held today in Beijing, Li Yunhao, Chief Engineer of the Beijing Fire Rescue Brigade, stated that through investigation and analysis, the main cause of electric bicycle fires is that the lithium batteries used are prone to thermal runaway and combustion explosions due to overcharging, battery short circuits, and the use of inferior chargers. After combustion and explosion, the temperature can reach thousands of degrees Celsius in a short period of time, and a large amount of toxic and high-temperature smoke is generated, which is extremely harmful. If the battery is placed ind...

2024-04-01
OPPO has obtained a power adapter patent, which can meet the minimum electrical clearance requirements in electrical safety regulations ·OPPO has obtained a power adapter patent, which can meet the minimum electrical clearance requirements in electrical safety regulations

On January 11, 2024, the financial sector reported that, according to the announcement of the China National Intellectual Property Administration, OPPO Guangdong Mobile Communication Co., Ltd. had obtained a patent named "power adapter", with the authorization announcement number CN114465064B, and the application date was November 2020.The patent abstract shows that the present application relates to a power adapter, comprising a body and a connecting piece. The body includes a shell and pins connected to the shell, and the shell has a first side and a second side relative to the thickness direction set on the shell. The connector is connected to the shell and can rotate relative to the shell to the first and second positions. In the first position, one end of the connector protrudes from the first side, and the other end of the connector protrudes from the second side. In the thickness direction of the shell, the distance between the edge of the pin and the outer edge of the connecto...

2024-03-28
Apple applies for a patent for an electronic charging system to achieve power supply for wearable devices ·Apple applies for a patent for an electronic charging system to achieve power supply for wearable devices

On March 22, 2024, the financial sector reported that according to the announcement of the China National Intellectual Property Administration, Apple applied for a patent named "Electronic Charging System", with the publication number of CN117748637A, and the application date was September 2023.The patent abstract shows that this disclosure relates to electronic charging systems. A wearable device may include a wearable device, which comprises: a display; Display frame, which accommodates the display; Arm, which is connected to the display frame; Processor; And the battery, which is electrically coupled to the processor. Additionally, the wearable device may include a wearable power device that can be connected to the battery of the wearable device when worn on a person or their clothing.

2024-03-28
Haobote has obtained a patent for portable chargers, achieving convenient winding of charging cables ·Haobote has obtained a patent for portable chargers, achieving convenient winding of charging cables

On January 29, 2024, the financial sector reported that, according to the announcement of the China National Intellectual Property Administration, Guangdong Hobart Technology Co., Ltd. had obtained a patent entitled "a portable charger", with the authorization announcement number of CN220401445U and the application date of May 2023.The patent abstract shows that the present utility model provides a portable charger, comprising a charger. The side surface of the charger is fixedly connected to a limit block, and the surface of the limit block is movably connected to a wire collection box. One side of the wire collection box has a limited slot on its surface, and the inner side of the wire collection box is equipped with a winding mechanism. One side of the charger is fixedly connected to a charging wire. This portable charger is equipped with a winding mechanism. When in use, the charging cable can be pulled to drive the connecting plate to rotate. The connecting plate rotates to drive...

2024-03-28
Huawei's mysterious new phone has passed national quality certification and supports 22.5W fast charging ·Huawei's mysterious new phone has passed national quality certification and supports 22.5W fast charging

CNMO Technology News: Recently, a model named "GFY-AL00" has passed the national quality certification. The applicant and manufacturer of "GFY-AL00" are both Huawei Terminal Co., Ltd., and the manufacturer is Huizhou Guanghong Technology Co., Ltd. Cable Company, equipped with a charger model of "HW-100225C00", which supports charging up to 22.5W power.At present, the specific name of "GFY-AL00" is unclear. From the perspective of charging power, "GFY-AL00" should be an entry-level smartphone in the middle and low end, perhaps a new product of Huawei's Enjoy series. The Huawei Changxiang series is mostly priced at 1000 yuan, making it more suitable for ordinary consumers to purchase.It is worth mentioning that on March 25th, WIKO officially announced: Hongmeng Ecology, Enjoy 5G. Hi Enjoy 70 Pro 5G HarmonyOS Ecological Phone New Product Launch is scheduled for March 29th at 14:30. According to reports, the Hi Enjoy 70 Pro 5G is the 5G version of the Huawei Enjoy 70 Pro, which has a 100...

2024-03-28
DeepCool launches PN D/M series power supply: supports ATX 3.1 specification ·DeepCool launches PN D/M series power supply: supports ATX 3.1 specification

DeepCool launches PN D/M series power supply: supports ATX 3.1 specification, dual gold certification, starting at 399 yuan.Recently, DeepCool has launched a new PN D/M series power supply that supports ATX 3.1 specifications and meets the native power supply requirements of PCIe 5.1 standards. The PN D series adopts a straight out wire design, while the PN M series adopts a full module design. The models with rated power of 550W, 650W, and 750W support 450W 12V-2x6 graphics card power supply, while the 850W model supports 600W 12V-2x6 graphics card power supply. At present, the new product has been launched on e-commerce platforms and is on sale. The manufacturer provides a ten-year warranty.The new PN D/M series power supply adopts an active PFC+full bridge SRC LLC+DC to DC stable architecture, providing stable voltage output regulation capability; All models have obtained 80 PLUS gold certification and Cybernetics gold certification. Under typical AC230V load (50%), the conversion...

2024-03-28
SUNRA Corporation has applied for a zero voltage charging method and system patent for sodium ion batteries, reducing the maintenance cost of sodium ion batteries ·SUNRA Corporation has applied for a zero voltage charging method and system patent for sodium ion batteries, reducing the maintenance cost of sodium ion batteries

On March 27, 2024, the financial sector reported that, according to the announcement of the China National Intellectual Property Administration, Jiangsu SUNRA Electric Vehicle Co., Ltd. applied for a patent entitled "a zero voltage charging method and system for sodium ion batteries", with the publication number of CN117755151A and the application date of December 2023.The patent abstract shows that the invention relates to the technical field of sodium ion batteries, in particular to a zero voltage charging method and system for sodium ion batteries, which includes a charger and a battery, and the battery includes a BMS system and battery cells; Connect the charger to the battery to charge it, and determine whether the battery cell is lower than a single string of 1.1V based on battery communication; If it is lower than a single string of 1.1V, the charger supplies power to the BMS system of the battery and charges the battery cells with low current; If it is higher than a single str...

2024-03-27
Bull Group has been granted invention patent authorization: ·Bull Group has been granted invention patent authorization:

Securities Star News: According to data from Qichacha, Bull Group (603195) has obtained a new invention patent authorization, named "Adapter and Rail Socket", with patent application number CN202180068114.8 and authorization date of March 26, 2024.Patent abstract: This application is about adapters and track sockets, belonging to the field of socket technology. The adapter comprises a socket body, a guide body, a moving conductive sheet, and a control component; The guide body and the moving conductive sheet are both located on one side of the socket body facing away from the socket; The control component is connected to the movable conductive sheet through transmission, and the control component is configured to drive the movable conductive sheet to rotate relative to the socket body. By using the adapter provided in the embodiments of this application, when it is necessary to slide the adapter on the track, the control element can be operated to control the moving conductive sh...

2024-03-27
Delta launches an electric vehicle charger UFC 500 that can charge two electric vehicles simultaneously ·Delta launches an electric vehicle charger UFC 500 that can charge two electric vehicles simultaneously

On March 21st, Delta Electronics, an intelligent green solution provider based on the Internet of Things, announced the launch of the 500kW DC ultra fast electric vehicle charger UFC 500. Due to the increasing demand for high-power charging and challenges faced by electric vehicle charging operators in land acquisition, UFC 500 has become an ideal solution with its excellent power to footprint ratio. The UFC 500 can charge a heavy-duty electric vehicle (e-truck/e Bus) equipped with a large capacity battery at a power of 460kW within 2 hours, and on average, it can support all day driving.

2024-03-27
SUNGROW Releases 2000V High Voltage Optical Storage System ·SUNGROW Releases 2000V High Voltage Optical Storage System

SUNGROW has released a 2000V high-voltage photovoltaic storage system, and advanced energy storage technology has become a new highland of global industrial competition.Since the beginning of this year, advanced energy storage technology has become a new highland in global industrial competition. In the industry's view, with the development of the energy storage industry, energy storage systems have been regarded as terminal product links with high technological content, no less than vehicle manufacturing.SUNGROW, which has ranked first in global energy storage system shipments for eight consecutive years and surpassed Tesla in 2022, is once again leading Chinese energy storage companies in the forefront of globalization as a "technology leader".At the press conference on March 21st, Li Han, Vice President of SUNGROW Solar Storage Group, said, "From the perspective of system level innovation, it is imperative to increase the number of battery series connections and enhance system volt...

2024-03-27
Hongxun Technology: Currently, the company's high dynamic power supply products are mainly used in RFX experiments (Padua) and JT-60SA nuclear fusion experiments ·Hongxun Technology: Currently, the company's high dynamic power supply products are mainly used in RFX experiments (Padua) and JT-60SA nuclear fusion experiments

Every time through AI Express, investors ask on investor interaction platforms: What is the status of company robots and nuclear fusion in various industries? Is there any existing income? What are the main downstream customers of well-known enterprises? Why has the company's revenue and profits decreased so much this year?On March 26th, Hongxun Technology (603015. SH) stated on the investor interaction platform:1. The company's current revenue from robot business mainly includes Cartesian robots, their control systems, and servo systems.2. The company is currently involved in nuclear fusion business revenue, mainly occurring in its holding subsidiary, EEI Italy. As a professional power conversion technology company with a 45 year history, EEI continuously innovates and strives to provide cutting-edge technology support for the field of nuclear fusion. Currently, the company's high dynamic power products are mainly used in RFX experiments (Padua) and JT-60SA nuclear fusion experiments...

2024-03-27
SUNGROW applies for a patent on the method for determining the state of charge of battery packs, making the state of charge of battery packs more accurate ·SUNGROW applies for a patent on the method for determining the state of charge of battery packs, making the state of charge of battery packs more accurate

On March 27, 2024, the financial sector reported that according to the announcement of the China National Intellectual Property Administration, SUNGROW Co., Ltd. applied for a patent entitled "Method, device and computer equipment for determining the state of charge of battery pack", with the publication number of CN117761554A, and the application date of December 2023.The patent abstract shows that the present application relates to a method, device, computer device, storage medium, and computer program product for determining the state of charge of a battery pack. The method comprises: obtaining the charge state of each cell in each module of the battery pack, and determining the corresponding charge state of each module based on the charge state of each cell in each module; From each module in the battery pack, the first module with the highest state of charge and the second module with the lowest state of charge are determined; Compare the state of charge of the first module and t...

2024-03-27
Haier smart home has obtained utility model patent authorization: ·Haier smart home has obtained utility model patent authorization: "Fixed structure of power board and household appliances"

According to data from Qichacha, Haier smart home (600690) has recently obtained a utility model patent authorization, titled "Power Board Fixed Structure and Household Appliances", with patent application number CN202322214039.0 and authorization date of March 12, 2024.Patent abstract:This utility model belongs to the field of household appliance technology and discloses a power board fixing structure and household appliances. The power board fixing structure is used to fix the power board in the installation chamber, including slots and fixing parts set in the installation chamber; Insert the power board into the slot along the first direction; The fixing parts include a first limit part and a second limit part. The first limit part is used to block the power board from leaving the slot in the first direction, the second limit part is used to block the power board in the second direction, the second direction is perpendicular to the first direction, and the second direction is the t...

2024-03-27
Honor Company has applied for patents on power and load switching circuits, low noise amplifiers, and electronic devices ·Honor Company has applied for patents on power and load switching circuits, low noise amplifiers, and electronic devices

Honor Company has applied for patents on power and load switching circuits, low noise amplifiers, and electronic devices, which can adjust the linearity, power consumption, and operating frequency band of low noise amplifiers.On March 27, 2024, the financial sector reported that, according to the announcement of the China National Intellectual Property Administration, Honor Terminal Co., Ltd. applied for a patent entitled "power and load switching circuit, low-noise amplifier and electronic equipment", with the publication number of CN117767965A and the application date of January 2024.The patent abstract shows that the present application discloses a power and load switching circuit, a low noise amplifier, and an electronic device, which relates to the field of electronic device technology. The power and load switching circuit comprises at least two power supplies, a switching switch, at least two loads, and at least two output ports; At least two ports of the switching switch are el...

2024-03-27
· What is a switching power supply charger?

1. The meaning of switching power supply chargerA switching power supply charger refers to an electronic product that uses switching power supply technology for charging. It can convert AC power into DC power and provide electrical energy to charge the device. The switching power supply charger is currently one of the most widely used chargers, and its advantages compared to other chargers mainly include high power efficiency, stable output level, and strong adaptability.2. Working principle of switching power supply chargerThe working principle of a switching power supply charger is to convert AC power input into high-frequency AC power through switching power supply technology, and generate the required DC power through transformer transformation to charge the device. There are two main types of switch power chargers: AC/DC and DC/DC. AC/DC switch power chargers are mostly used for mobile phones, tablets, and other devices, while DC/DC switch power chargers are mostly used for camer...

2024-04-15
· Open Frame Power Supply Manufacturer in China: Creating High Quality Open Frame Power Supply to Support the Development of Intelligent Technology

Open frame power supply is an electronic device mainly used to provide stable power supply for various electronic products. As one of the core components of electronic products, the quality of open frame power supply is directly related to the performance and stability of the entire product. Therefore, choosing a high-quality open frame power supply manufacturer is crucial.Open Frame Power Supply of Shenzhen Kinri EnergyThere are many open frame power supply manufacturers in the market, but it is not easy to choose a manufacturer that provides high-quality products. At this point, consumers need to pay attention to some key factors, such as the reputation of the manufacturer, the quality and performance of the product, etc. Only by choosing a reputable and high-quality manufacturer can we guarantee the purchase of open frame power products that meet our needs.A high-quality open frame power supply manufacturer should have advanced production equipment and technology to ensure product...

2024-04-09
· Full explanation of switching power supply

Learn more about switching power supplies, start here!What is a switching power supply?A switching power supply is a type of power supply that utilizes modern power electronics technology to control the time ratio of switching on and off, and maintain a stable output voltage. Switching power supplies are generally composed of pulse width modulation (PWM) control ICs and MOSFETs. With the development and innovation of power electronics technology, switching power supply technology is also constantly innovating. At present, switching power supplies are widely used in almost all electronic devices due to their small size, lightweight, and high efficiency, and are an indispensable power supply method for the rapid development of the electronic information industry today.According to the input and output types of switching power supplies, they can be divided into AC-DC, DC-DC, DC-AC, etc.The function of switching power supply, such as AC-DC power supply:●  Rectification: Convert...

2024-04-25
· The Comprehensive Testing Items for Charger Functions

The comprehensive testing items for charger functions includes input and output voltage, current, charging speed, overload protection, stability, safety, and durability testing. Kinri Energy uses the power supply automated test system for testing. By connecting test instruments and edge computing devices, it creates a test scheme in the power supply automated test system, starts testing, and finally generates data reports. The system is tested in an intelligent and automated manner, with simple operation and strong data analysis capabilities.Kinri Energy's production workshop conducts a comprehensive charger function testing items, including but not limited to the following testing items.1. Input and output voltage testingMeasure the input and output voltage of the charger through a multimeter or other precision testing equipment; Check if the input and output voltages are within the specified range to avoid equipment damage.2. Input and output current testingTest the input and output...

2024-04-24
· What are the specific applications of industrial control power supplies?

Industrial control power supply refers to power equipment specifically used in the field of industrial control, whose main function is to provide stable and reliable power supply for industrial automation and control systems. The field of industrial control involves various automation equipment, control systems, and communication equipment, which typically operate in harsh industrial environments such as factories, power plants, chemical plants, and transportation. So what are the specific applications of industrial control power supplies?Industrial Control System Power SupplyIndustrial control power supply is a power equipment specifically used in the field of industrial control, characterized by stability, reliability, durability, and adaptability to harsh industrial environments. Industrial control power supplies play an important role in industrial automation and control systems, and their specific applications include but are not limited to the following aspects:Automation equipm...

2024-04-24
· What should I pay attention to when choosing an industrial control power supply?

Industrial control power supply is a power supply device used for industrial control systems and automation equipment. They provide the necessary electricity for various industrial control equipment to ensure their normal operation. So, what are the issues we need to pay attention to when choosing industrial control power supplies? We will ask the industrial control power supply manufacturer to provide us with a detailed introduction!Industrial Control System Power SupplyWhen choosing an industrial control power supply, you need to pay attention to the following aspects:Power supply type: Choose the appropriate power supply type according to your needs, such as AC power supply or DC power supply. Industrial control systems typically use DC power, but some specific applications may require AC power.Voltage and Power Requirements: Determine the voltage and power requirements of your industrial control equipment to ensure that the selected power supply can provide sufficient electrical e...

2024-04-24
· What are the functions of automatic power supplies?

automatic power supply refers to a system that manages and controls the power supply process of the power system through automatic control and monitoring technology. It includes a series of devices, sensors, controllers, and software used to monitor the parameters of the power system, perform fault detection and recovery, and optimize energy use and distribution. So what are the functions of automatic power sources? In response to this issue, this article will provide a detailed introduction for everyone.The main goal of an automatic power supply system is to provide a stable and reliable power supply, and to automatically switch to a backup power source when needed. It can monitor the voltage, frequency, and load situation of the power grid, adjust and control according to demand, to ensure the continuity and stability of power supply. When a fault or abnormal situation is detected in the power system, the automatic power supply system can quickly respond, cut off the affected circui...

2024-04-24
· How to choose a water purifier power adapter with waterproof function?

In today's era of increasing environmental awareness, water purifiers have become essential equipment for many households and offices. However, during the use of water purifiers, we inevitably encounter some problems, one of which is the waterproof function of the power adapter. In this article, we will explore the importance of waterproof function of water purifier power adapters and how to choose a power adapter with waterproof function.1. The importance of waterproof function of water purifier power adapter●  Prevent accidental electric shockIf the power adapter of the water purifier has waterproof function, it can effectively prevent the occurrence of accidental electric shock. If the power adapter is not waterproof during the use of a water purifier, it may cause electric shock accidents and pose safety hazards if it comes into contact with water droplets or humid air. A power adapter with waterproof function can effectively avoid this situation and ensure safe use.●  E...

2024-04-24
· Solution to the interference problem of high-frequency switching power supply

With the development of power supply technology, high-frequency switching power supply control has gradually evolved from analog circuits to high integration control devices such as microprocessors and DSPs. These devices have small size and high precision, but the electromagnetic interference and radiation inside the switching power supply are stronger compared to other communication equipment working environments, which puts higher requirements on auxiliary power supplies. This article elaborates on the working characteristics and waveforms of auxiliary power supplies in high-frequency switching power supplies, and focuses on analyzing the issues that should be paid attention to and the selection of parameters in the design of high-frequency switching power supplies based on experimental data.1. Interference issues with high-frequency switching power suppliesIn current intelligent switch mode power supplies, internal microprocessors or DSPs are used for monitoring and communication...

2024-04-23
· How to perform maintenance operations on switching power supplies?

How to carry out maintenance operations for switching power supplies, and what are the commonly used maintenance methods? Here are four methods for switch mode power supply maintenance, including short circuit method, false load method, etc. Let's understand together.Four Methods for Maintenance of Switching Power SupplyThere are three methods: short circuit method, series bulb method, false load method, and exchange method.1. Short circuit methodThe switching power supply of LCD displays mostly uses a direct sampling and stabilizing control circuit with a photoelectric coupler. When the output voltage is high, a short circuit method can be used to distinguish the defect range.2. Series bulb methodThe series light bulb method refers to removing the fuse of the input circuit and using a 60W/220V light bulb to string at both ends of the fuse. After applying communication voltage, if the light bulb is very bright, it indicates that there is a short circuit in the circuit. A light bulb ha...

2024-04-23
· What standard requirements do switching power supplies need to meet?

Regular switching power supplies need to meet the following standard requirements.1. EMC standard requirementsThe EMC standard for switch mode power supplies is a specification requirement for their electromagnetic compatibility performance, to ensure stable operation in interference environments without generating electromagnetic radiation that hinders the normal operation of other electrical equipment. Switching power supplies need to meet relevant standards such as EN55022, CISPR 22, and FCC PART15B during production.2. Safety standard requirementsThe safety standards for switch mode power supplies usually require that there should be no issues such as leakage or electric shock during use, and there should be no safety hazards such as overheating or fire. The safety standards of switch mode power supplies usually require compliance with relevant national and regional safety certification standards such as IEC60950-1 and GB4943.3. Energy efficiency standard requirementsIn order to e...

2024-04-23
· How to reduce transformer losses in switching power supplies?

Switching power supply transformer losses can be reduced through the following two aspects.1. Reduce copper loss(1) Choose a lower current density;(2) Reduce the number of turns, but it will increase the magnetic flux density of the magnetic core and increase the iron loss. When the copper loss is significantly higher than the iron loss, use with caution;(3) Changing the transformer process to reduce the AC resistance of the winding can be achieved by reducing the diameter of the copper wire (without reducing the total cross-sectional area), increasing the adjacent faces of the primary stage (which will increase the distributed capacitance of the primary stage), reducing the distance between the primary stages (which will increase the distributed capacitance of the primary stage), and loosening the coil;(4) Changing circuit operation parameters to reduce AC resistance, such as lowering switching frequency, can increase the magnetic flux density of the magnetic core and increase iron l...

2024-04-23
· Precautions for selecting and using switching power supplies

Switching power supplies occupy an important position in modern electronic devices, and there are many aspects that need attention on how to choose and use them. This article introduces how to choose a switching power supply and the issues that need to be noted when using a switching power supply.Issues to pay attention to when choosing a switching power supply●  The input voltage specifications must match the equipment requirements: ensure that the power supply matches the voltage requirements of the equipment to avoid equipment malfunction or damage.●  We should choose models that match and exceed 30% of the rated output power to extend the service life of the power supply: choosing a slightly higher power supply can provide a longer service life and can cope with some high load situations.●  The load characteristics need to be carefully considered. For motors, light bulbs, or capacitive loads with high current at startup, suitable power sources should be selected to...

2024-04-23
· What is the difference between switching power supply and rail mode power supply?

Definition of Switching Power Supply and Rail Power SupplySwitching Power Supply Switching Power Supply is a type of power supply that first converts AC power into DC power, and then converts DC power into the required DC voltage and current output power. It adopts high-frequency switching power modulation technology, which has high output current, high efficiency, and low noise. It is widely used in electronic instruments, communication equipment, computer equipment, industrial automation control and other fields.240W Din Rail Switching Power SupplyA DIN rail power supply refers to a DC power supply that is fixed on a rail and converts AC power into a specific voltage and current through a power cord. It has the advantages of wide applicability, easy installation, stable operation, and high reliability, and is widely used in fields such as mechanical equipment, automation control, and processing equipment.The difference between switching power supply and rail mode power supply1. Func...

2024-04-22
· The causes and solutions of power  supply ripple and noise generation

The DC/DC power supply circuit has the advantages of low power consumption and high power, but at the same time, the conversion of the DC/DC circuit is completed through switching, which inevitably leads to the introduction of noise, specifically the ripple and noise of the power supply circuit.Compared with linear power supplies, switching power supplies (including AC/DC converters, DC/DC converters, AC/DC modules, and DC/DC modules) have the most prominent advantage of high conversion efficiency, generally reaching 80% to 85%, and up to 90% to 97%.Secondly, switching power supplies use high-frequency transformers instead of bulky power frequency transformers, which not only reduces weight but also reduces volume, making their application range increasingly wide.But the disadvantage of switch mode power supply is that its switching transistor operates in a high-frequency switching state, and the output ripple and noise voltage are relatively large, generally around 1% of the output v...

2024-04-20
· What is the difference between single output and dual output power supplies?

There is a difference in the number of output channels between single output power supplies and dual output power supplies, which determines their flexibility and applicability in applications.Single output power supplySingle output channel: A single output power supply has only one output channel, which can only provide one voltage and current output.Limited applicability: Due to having only one output channel, a single output power supply is usually suitable for applications that only require a single voltage supply, such as many simple electronic devices or systems.Simple design: The design of a single output power supply is relatively simple and cost-effective.Application scenario: In some relatively simple applications, such as household electronic products, some small communication equipment, or laboratory experiments, a single output power supply can meet basic power needs.Dual output power supplyMultiple output channels: A dual output power supply has two or more independent o...

2024-04-19
· Common malfunctions and causes of power modules

There are several common malfunctions and causes of power modules:Unable to start or no output voltage: It may be due to abnormal or damaged input power of the power module, such as high or low input voltage, short circuit of input power, etc; It may also be an internal fault in the power module, such as a main circuit component failure, control circuit failure, etc.Large fluctuation of output voltage: It may be caused by excessive load on the power module, sudden load changes, and other reasons that lead to unstable output voltage; It is also possible that the internal switch components of the power module are damaged, the filtering capacitor is aged, and other factors can cause output voltage fluctuations.Heat dissipation issue: When the power module works for a long time or the ambient temperature is high, it may cause poor heat dissipation, which can lead to overheating or overload of the power module.Overload protection triggered: When the load current exceeds the rated current o...

2024-04-19
· What are the reasons for intermittent oscillations in switch mode power supplies?

Switching power supply is a type of power module. He is also a very common type of power supply, and the reason for adding the word "switch" is because its internal structure has a Schottky diode with switching characteristics. This diode has a high switching frequency and can quickly switch off thousands of times in a short period of time. And each time, it can provide power and current output, which plays an important role in general integrated circuits. However, in the use of Switching power supplies, intermittent oscillations may sometimes occur. What are the reasons for this? Next, Kinri will provide a detailed introduction to this issue for everyone.The reasons for intermittent oscillation in switching power supplies can be divided into three types: overload type, undervoltage type, and no-load type.1. Overload typeThis type of fault is more common among the four types of faults. Usually caused by breakdown of the rectifier diode on the secondary side of the switching transforme...

2024-04-19