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:
Jun. 29, 2021

Filed:

Feb. 26, 2019
Applicant:

Samsung Sdi Co., Ltd., Yongin-si, KR;

Inventors:

Takao Hidaka, Yongin-si, KR;

Hwa-Su Kim, Yongin-si, KR;

Assignee:

Samsung SDI Co., Ltd., Yongin-si, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01); G01R 31/3842 (2019.01); H01M 10/48 (2006.01); H01M 10/42 (2006.01);
U.S. Cl.
CPC ...
H02J 7/0016 (2013.01); G01R 31/3842 (2019.01); H01M 10/482 (2013.01); H01M 10/486 (2013.01); H01M 2010/4271 (2013.01);
Abstract

A battery management system includes a plurality of balancing resistors that are respectively connected to a plurality of cells that are connected in series to each other, and that respectively form a part of a balancing discharge path of each of the cells, a plurality of balancing switches configured to respectively control a flow of balancing current of the balancing discharge path, a voltage detection circuit configured to detect a voltage of opposite ends of a respective balancing resistor with respect to a balancing target cell among the cells when cell balancing is started, and a balancing control circuit configured to acquire a voltage cumulative value corresponding to a cumulative value of balancing discharge current of the balancing target cell using the voltage of the opposite ends of the respective balancing resistor, and configured to determine whether cell balancing on the balancing target cell is terminated based on the voltage cumulative value.


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