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    • 6. 发明公开
    • CHARGING DEVICE AND CHARGING SYSTEM
    • EP3700045A1
    • 2020-08-26
    • EP18878245.2
    • 2018-11-14
    • Huawei Technologies Co., Ltd.
    • WANG, Xilin
    • H02J7/00H02J7/02G01R31/02
    • A charging apparatus is disclosed, including a charging circuit, a current leakage detection circuit, a control circuit, an in-position detection circuit, and a voltage output end. The charging circuit includes a first voltage conversion circuit and a first switch; the current leakage detection circuit includes a second voltage conversion circuit and a serial resistor, and the current leakage detection circuit is configured to: detect whether current leakage occurs between the voltage output end and the ground, and output a current leakage detection result by using the voltage output end; the first voltage conversion circuit is configured to convert an alternating current voltage into a first direct current voltage; the second voltage conversion circuit is configured to convert the first direct current voltage into a second direct current voltage that does not trigger charging of an electronic device; the in-position detection circuit is configured to detect whether the electronic device is in position to obtain an in-position signal; and the control circuit is configured to: when it is determined, based on the current leakage detection result, that no current leakage occurs and it is determined that the electronic device is in position, close the first switch, so that an output of the charging circuit is able to charge the electronic device, and when it is determined that current leakage occurs or that the electronic device is not in-position, open the first switch to prevent the charging.