On May 8, 2024, the financial sector reported that, according to the announcement of the China National Intellectual Property Administration, Shenzhen Trythink Technology Co., Ltd. had obtained a patent entitled "an adapter with a pin detachable and rotatable structure", the authorization announcement number was CN220914632U, and the application date was June 2022.The patent abstract shows that the present utility model discloses an adapter with a detachable and rotatable pin structure, comprising an adapter body, a pin component connected to the adapter body, the adapter body and the pin component being detachable and electrically connected in a contact manner; The adapter body has a threaded groove at the connection end with the pin component for the pin component to be screwed in; The adapter body and the connecting end of the pin component also have a press type movable buckle that is fixed and fastened when the pin component is screwed in; The pin components of the adapter of thi...

Fourth-Generation Device Enables Higher Power Ratings and Density Versus D²PAK While Lowering Conduction and Switching Losses to Increase EfficiencyMALVERN, Pa., May 01, 2024 (GLOBE NEWSWIRE) -- To provide higher efficiency and power density for telecom, industrial, and computing applications, Vishay Intertechnology, Inc. (NYSE: VSH) today introduced its first fourth-generation 600 V E Series power MOSFET in the new PowerPAK® 8 x 8LR package. Compared to previous-generation devices, the Vishay Siliconix n-channel SiHR080N60E slashes on-resistance by 27 % and resistance times gate charge, a key figure of merit (FOM) for 600 V MOSFETs used in power conversion applications, by 60 % while providing higher current in a smaller footprint than devices in the D²PAK package.Vishay offers a broad line of MOSFET technologies that support all stages of the power conversion process, from high voltage inputs to the low voltage outputs required to power the latest high tech equipment....

On April 30, 2024, the financial sector reported that, according to the announcement of the China National Intellectual Property Administration, Beijing Xiaomi Mobile Software Co., Ltd. applied for a patent entitled "Charging control method, device, electronic equipment and readable storage medium", with the publication number of CN117955186A and the application date of October 2022.The patent abstract shows that the present disclosure relates to a charging control method, device, electronic device, and readable storage medium. The method comprises: the battery of the terminal is connected to a charge pump on the terminal motherboard through three connectors, and the charge pump is connected to the charger. At the moment when the charger is inserted into the terminal or during the charging process through the charger, the status of the three connectors is detected. When a connector is detected to be disconnected, the fast charging protocol state machine is controlled to exit the fast...

On May 6, 2024, the financial sector reported that, according to the announcement of the China National Intellectual Property Administration, ORBBEC Technology Group Co., Ltd. has obtained a patent entitled "power control circuit and electronic equipment", the authorization announcement number is CN220896533U, and the application date is August 2023.The patent abstract shows that the present application provides a power control circuit and electronic device, which relates to the field of power circuit technology. Among them, the power control circuit includes an overcurrent protection circuit and a voltage conversion circuit. The overcurrent protection circuit is connected to the input or output terminals of the voltage conversion circuit; The overcurrent protection circuit includes a load switch chip, a current feedback circuit, and a current regulation circuit; The current regulation circuit is used to adjust the current limiting threshold of the load switch chip based on the first...

Highlights:●  Delivers industry-leading DDR5 server PMIC for the highest performance and capacity memory modules required by AI and other advanced workloads●  Supports multiple generations of high-performance DDR5-based servers with new family of PMICs●  Provides a complete memory interface chipset for DDR5 server memory modules including RCD, PMIC, SPD Hub and Temperature Sensor ICsFigure 1: Rambus Server PMIC on DDR5 RDIMMFigure 2: Rambus DDR5 Server PMIC FamilySAN JOSE, Calif. – Apr. 29, 2024 – Rambus Inc. (NASDAQ: RMBS), a premier chip and silicon IP provider making data faster and safer, today announced the availability of its new family of state-of-the-art DDR5 server Power Management ICs (PMICs), including an industry-leading extreme current device for high-performance applications. With this new family of server PMICs, Rambus offers module manufacturers a complete DDR5 RDIMM memory interface chipset supporting a broad range of data center use cases.&...

TAIPEI -- Top German chipmaker Infineon has reached an agreement to supply Chinese EV maker Xiaomi with advanced power semiconductors until 2027, in a move to tap the growing electric car market in China and beyond.Infineon said on Monday that it will provide Xiaomi's electric cars with its silicon carbide (SiC) chips and modules, as well as a wide range of key microcontroller chips. The chipmaker said the collaboration can "reinforce Infineon's position as the global market leader in automotive semiconductors."Xiaomi, which is also the world's third-largest smartphone maker, started selling its first electric vehicle in March. It aims to shake up the EV market with its premium SU7 Max, priced at 299,900 yuan ($41,500), compared with 684,900 yuan for Tesla's Model S and 1.5 million yuan for an electric Porsche.Zhenyu Huang, vice president of Xiaomi EV and general manager of its supply chains, said the deepening ties with Infineon will not only "help stabilize the supply of silicon car...

On May 4, 2024, the financial sector reported that according to the announcement of the China National Intellectual Property Administration, OPPO Guangdong Mobile Communication Co., Ltd. applied for a project named "Power Supply Device and Adapter", with the public number of CN117977925A, and the application date was October 2022.The patent abstract shows that the present disclosure relates to the field of charging technology, specifically to a power supply device and adapter. The power supply device may include an AC/DC conversion module, a full bridge LLC circuit, a DC/DC conversion module, and a controller. Among them, the AC/DC conversion module is connected to the input power supply; The input end of the full bridge LLC circuit is connected to the AC/DC conversion module; A DC/DC conversion module connected to the output terminal of the full bridge LLC circuit; The controller is used to detect the voltage information of the input power supply and control the working status of the...

Technology company STMicroelectronics has introduced the L99H92 automotive gate driver which provides an SPI port for programming and diagnostics, a charge pump, protective features and two extra current-sense amplifiers for system monitoring.Featuring two high-side and two low-side drivers, the L99H92 can control a single H-bridge powering one bidirectional DC motor or two half bridges for two unidirectional motors. Common applications for this driver include electric sunroofs, window lifts, powered trunks, sliding doors and seat-belt pre-tensioners.The built-in charge pump provides stable operation of the high-side drivers even as the vehicle battery voltage fluctuates, which the company says enables the outputs to function reliably with a supply voltage as low as 5.41V.The charge-pump output can be accessed externally to control a metal–oxide–semiconductor field-effect transistor (MOSFET) for reverse-battery protection.The gate-driving current is programmed through the...

On May 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 "Soft start control circuit of a switching power supply and switching power supply", with authorization announcement No. CN108809071B, and application date of August 2018.The patent abstract shows that the present invention provides a soft start control circuit for a switching power supply, comprising a clock frequency generator for generating a frequency signal with a small duty cycle; The output end of the clock frequency generator is connected to the control end of the first switch module; The input end of the first switch module is connected to the power supply end, and the output end is connected to the end with high capacitance potential of the soft start control circuit; Among them, the common terminal of the first switch module and the capacitor is also used t...

Securities Star News: According to data from Qichacha, Midea Group (000333) has obtained a new invention patent authorization, titled "Package Body, Switching Power Supply Module, PCB Module, and Air Conditioner". The patent application number is CN201810887027.5, and the authorization date is April 26, 2024.Patent abstractThe present invention discloses a packaging body, a switch power supply module, a PCB module, and an air conditioner. Among them, the packaging body includes a packaging shell, which is equipped with a cavity; An internal PCB board, which is located in the cavity; And, needle insertion; One end of the guide pin is electrically connected to the internal PCB board, and the other end runs through the penetration part of the packaging shell for electrical connection with the external PCB board. The guide pin is formed as a whole with the penetration part of the packaging shell. The technical solution of the present invention ensures the spacing between the guide pins by...

Securities Star News: According to data from Qichacha, HONOTO (300870) has recently obtained a utility model patent authorization, titled "Peak Voltage Control Circuit and Synchronous Rectifier Switching Power Supply". The patent application number is CN202322667926.3, and the authorization date is April 26, 2024.Patent AbstractThis application provides a peak voltage control circuit and a synchronous rectifier switching power supply. The peak voltage control circuit is used to control the peak voltage on the first switching transistor in the synchronous rectifier switching power supply; The peak voltage control circuit includes: charging and discharging capacitor, first on/off control unit, second on/off control unit, and energy consumption unit; Charging and discharging capacitors are used to absorb and store energy from the peak voltage generated when the first switching tube is disconnected; The first on/off control unit is used to achieve unidirectional conduction from the first...

On April 27, 2024, the financial sector reported that, according to the announcement of the China National Intellectual Property Administration, China FAW Group Co., Ltd. applied for a patent entitled "EV Charging Station connection method, device, storage medium and electronic device", with the publication number of CN117935428A and the application date of December 2023.The patent abstract shows that the present invention discloses a method, device, storage medium, and electronic device for connecting a vehicle charging station. Among them, the method includes: obtaining the encrypted identification information of the target charging station; Send registration application information to the cloud service platform based on encrypted identification information, so that the cloud service platform can register the target charging station according to the registration application information; In response to the successful registration of the target charging station, receive device identif...

On April 27, 2024, the financial sector reported that, according to the announcement of the China National Intellectual Property Administration, Chongqing Meiansen Technology Co., Ltd. applied for a power supply protection circuit named "a pre charging and current intercepting power supply protection circuit with load detection function", with the publication number of CN117937386A, and the application date of December 2023.The patent abstract shows that the present invention relates to the field of protective circuit technology, specifically to a pre charging and current cutting power supply protection circuit with load detection function, including: a pulse charging module for charging a load device with a preset pulse width after the power supply is started; The load detection module is used to detect the voltage characteristics of the load device after charging it with a preset pulse width, and control the output of the main circuit based on the voltage characteristics; The curren...

On April 27, 2024, the financial sector reported that, according to the announcement of the China National Intellectual Property Administration, EAST Group Co., Ltd. applied for a patent entitled "an uninterruptible power supply installation device", with the publication number of CN117937273A and the application date of December 2023.The patent abstract shows that the present invention relates to the field of uninterruptible power supply technology, specifically to an uninterruptible power supply installation device, which includes a protective box and an uninterruptible power supply body. The protective box is equipped with a lifting mechanism, and four sets of walking wheels are installed at the bottom of the lifting mechanism extending to the bottom of the protective box. The bottom of the protective box is equipped with a humidity sensor, and the installation seat is equipped with a buffer mechanism. The uninterruptible power supply body is installed on the buffer mechanism.The l...

On April 26, 2024, the financial sector reported that, according to the announcement of the China National Intellectual Property Administration, Shenzhen Kivi Instruments Electronics Co., Ltd. applied for a patent entitled "drive control circuit and its drive control method and switching power supply", with the publication number of CN117937935A and the application date of November 2023.Logo of Kivi InstrumentsThe patent abstract shows that the present invention proposes a driving control circuit, a driving control method, and a switching power supply. The driving control circuit is used to generate the first and second driving signals, thereby driving the first and second switching tubes in the switching power supply. The drive control circuit includes a regulating circuit and a driving circuit. The input end of the regulating circuit is used to receive a current detection signal representing the excitation current of the resonant cavity, and the regulating circuit is used to generat...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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%.

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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.

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...

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...

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...

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%.

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...