公开(公告)号：US20230042691A1

公开(公告)日：2023-02-09

申请号：US17789915

申请日：2020-12-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wenchao YU ,  Zhiyong ZHENG ,  Chong WEN ,  Honghai LI

IPC: H02J7/00 ,  H01M10/44 ,  H01M10/42

Abstract: A charging circuit includes a first charging path and a second charging path. The first charging path and the second charging path are connected in parallel, and the first charging path and the second charging path are both used to receive a charging signal via a wired charging interface. The first charging path is connected to a first power end of a battery, and the second charging path is connected to a second power end of the battery. The first end of the battery is different from the second end of the battery.

公开(公告)号：US20220037925A1

公开(公告)日：2022-02-03

申请号：US17278832

申请日：2018-09-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wenchao YU ,  Haizhen GAO ,  Lvjian YANG ,  Jiang CHEN ,  Hui WANG

IPC: H02J50/12 ,  H02J50/80

Abstract: A method that includes: transmitting, by an electronic device, a first detecting signal when the electronic device is in a reverse wireless charging mode; receiving, by the electronic device at a gap moment between at least two adjacent moments at which the first detecting signal is transmitted, a second detecting signal transmitted by a wireless charging device; and if the second detecting signal received by the electronic device meets a preset condition, automatically switching, by the electronic device, from the reverse wireless charging mode to a forward wireless charging mode.

公开(公告)号：US20190324086A1

公开(公告)日：2019-10-24

申请号：US16474867

申请日：2017-02-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wenchao YU ,  Chong WEN ,  Hui WANG ,  Jianjun XU ,  Kangjie CHAO ,  Huogen KUANG

IPC: G01R31/36 ,  G01R31/02 ,  H01M10/04 ,  H01M10/48 ,  H01M10/42

Abstract: Embodiments of this application disclose a battery leakage current check method, apparatus, and circuit, and relate to the battery field, so as to check for a leakage current inside a battery. The battery leakage current check method includes: when a power adapter supplies power to an electronic device, controlling the battery to stop supplying power to the electronic device; obtaining a voltage parameter and a duration parameter, where the voltage parameter is a difference between voltages of the battery at two different moments, and the duration parameter is duration between the two different moments; and determining, based on the voltage parameter and the duration parameter, whether a leakage parameter of the battery meets a preset condition. The embodiments of this application are applied to battery leakage current check.