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HONOR has obtained patents for switching power supply circuits and electronic devices, improving adaptability to load devices

Article Source：China National Intellectual Property Administration | Author：Financial Sector | Issuing Time：2024.04.15
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 relative to the reference value; The switch mode power supply chip is used to adjust the output voltage based on the feedback voltage relative to the reference value. When the feedback voltage increases relative to the reference value, the output voltage is reduced to increase the duration of reaching the preset voltage; When the feedback voltage decreases relative to the reference value, increase the output voltage to reduce the duration of reaching the preset voltage. The preset voltage is the target value of the output voltage. According to this embodiment, the soft start duration can be adjusted by the soft start duration adjustment circuit to improve the adaptability to load devices.
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