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.

公开(公告)号：US20200004709A1

公开(公告)日：2020-01-02

申请号：US16474655

申请日：2017-04-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Feng LIU ,  Jiangtao YANG ,  Jianjun XU

IPC: G06F13/38 ,  H01R13/66 ,  G06F21/44

Abstract: Example adaption apparatus are described. An example adaption apparatus includes a first USB interface and a second USB interface. A power signal of the first USB interface is electrically connected to a power signal of the second USB interface. A first channel configuration signal of the first USB interface is electrically connected to an ID signal of the second USB interface using a first resistor. The ID signal of the second USB interface is electrically connected to the power signal of the second USB interface using a second resistor. A resistance value of the first resistor meets a criterion followed by a first device to identify a UFP device according to the USB Type-C protocol. A sum of the resistance value of the first resistor and a resistance value of the second resistor meets a criterion followed by the first device to identify a DFP device according to the USB Type-C protocol.