公开(公告)号：US20250004060A1

公开(公告)日：2025-01-02

申请号：US18271525

申请日：2022-12-13

Applicant: Honor Device Co., Ltd.

Inventor： Zhifang Li

IPC: G01R31/389 ,  G01R31/3835 ,  H02J7/00

Abstract: A method includes: obtaining an in-position status of a charger of the electronic device; turning off a first switch if the charger of the electronic device is in position, where the first switch is located between a load of the electronic device and a battery of the electronic device; and after the load is disconnected from the battery, detecting a change of an internal resistance of the battery to obtain an internal resistance test result.

公开(公告)号：US20240248125A1

公开(公告)日：2024-07-25

申请号：US18016924

申请日：2022-08-22

Applicant: Honor Device Co., Ltd.

Inventor： Zhifang Li

IPC: G01R27/16 ,  G01R27/08 ,  G01R31/58 ,  H02J7/00

CPC classification number: G01R27/16 ,  G01R27/08 ,  G01R31/58 ,  H02J7/00034 ,  H02J7/0047 ,  H02J7/00712 ,  H02J2207/30

Abstract: This application relates to the field of charging management, and provides a method for detecting impedance of a charging cable, an electronic device, and a power supply device, to more accurately detect impedance of a charging cable. Calculating, by the electronic device, an impedance value of the charging cable according to a first source voltage detection value, a second source voltage detection value, a first final voltage detection value, a second final voltage detection value, a first current value, and a second current value.