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· 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...
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04-25
2024
· 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...
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04-24
2024
· 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...
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04-23
2024
· 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...
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04-20
2024
· 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...
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04-20
2024

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