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Xiaomi has obtained patents for charging circuits, charging control methods, and devices, which can simultaneously meet the charging requirements of full power compatibility

Article Source：China National Intellectual Property Administration | Author：Financial Sector | Issuing Time：2024.04.10
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 current conversion circuit includes a first power direct charging circuit, a second power direct charging circuit, and a third power direct charging circuit connected in parallel with each other, wherein the first power is greater than the second power, and the second power is greater than the third power; The central controller matches one of the charging circuits, namely the first power direct charging circuit, the second power direct charging circuit, and the third power direct charging circuit, based on the input voltage of the charger to convert the output voltage of the charger into the battery input voltage suitable for the battery. Through this charging circuit, it is possible to simultaneously meet the charging requirements for compatibility with full power.
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