Huizhou (HK) Yingyuan Technology
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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
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...