The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 22, 2021
Filed:
Jun. 27, 2019
Applicant:
Huawei Technologies Co., Ltd., Shenzhen, CN;
Inventors:
Assignee:
Huawei Technologies Co., Ltd., Shenzhen, CN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/3835 (2019.01); G01R 31/396 (2019.01); G01R 31/36 (2020.01); H02J 7/00 (2006.01); H01M 10/42 (2006.01); H01M 10/48 (2006.01); B60L 58/22 (2019.01);
U.S. Cl.
CPC ...
G01R 31/3835 (2019.01); G01R 31/3648 (2013.01); G01R 31/396 (2019.01); H02J 7/0014 (2013.01); B60L 58/22 (2019.02); H01M 10/482 (2013.01); H01M 2010/4271 (2013.01); H02J 7/0018 (2013.01); H02J 7/0019 (2013.01);
Abstract
In a sampling circuit, a single cell in a series battery pack is isolated from a voltage divider resistor in a bleeder circuit by using a first isolation sampling switch, so as to prevent a drain current of the single cell. In addition, sampling errors in sampling voltages collected by the sampling circuit may be offset during differential calculation.