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Huawei applies for patents on switch mode power supply circuits, power adapters, and charging systems, which can reduce power loss

Article Source：China National Intellectual Property Administration | Author：Financial Sector | Issuing Time：2024.04.09
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.
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