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.

Date of Patent:
Feb. 23, 2021

Filed:

Aug. 27, 2018
Applicant:

Contemporary Amperex Technology Co., Limited, Ningde, CN;

Inventors:

Zhanyu Sun, Ningde, CN;

Zhimin Dan, Ningde, CN;

Yizhen Hou, Ningde, CN;

Jiechao Luo, Ningde, CN;

Wei Zhang, Ningde, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/389 (2019.01); G01R 31/14 (2006.01); G01R 31/327 (2006.01); G01R 31/36 (2020.01); G01R 27/02 (2006.01);
U.S. Cl.
CPC ...
G01R 31/389 (2019.01); G01R 27/025 (2013.01); G01R 31/14 (2013.01); G01R 31/3278 (2013.01); G01R 31/3648 (2013.01);
Abstract

The present disclosure provides a battery detection circuit and a battery management system. The battery detection circuit includes a positive relay, a negative relay, a first positive sampling unit, a first negative sampling unit, a second positive sampling unit, a second negative sampling unit, and a reference voltage terminal, wherein: all of the first positive sampling unit, the first negative sampling unit, the second positive sampling unit, the second negative sampling unit and a power battery pack to be detected are connected to the reference voltage terminal. With the battery detection circuit and the battery management system of the present disclosure, both the cost of the battery detection circuit and the complexity of the structure of the battery detection circuit can be reduced.


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