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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.:

US 12504477 B1

PDFFull Text
Date of Patent:
Dec. 23, 2025

Filed:

Sep. 15, 2022

Device and method for diagnosing damage to switch in battery protection circuit, and battery management device comprising same

Applicant:

Lg Energy Solution, Ltd., Seoul, KR;

Inventors:

Seung Min Yang, Daejeon, KR;

Yun Jang, Daejeon, KR;

Assignee:

LG ENERGY SOLUTION, LTD., Seoul, KR;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Walter L Lindsay, Jr

Assistant Examiner:

Milton undefined Gonzalez

Int. Cl.
CPC ...
G01R 31/333 (2006.01); G01R 19/165 (2006.01); G01R 31/3835 (2019.01); H02J 7/00 (2006.01);
U.S. Cl.
CPC ...
G01R 31/3333 (2013.01); G01R 19/16566 (2013.01); G01R 31/3835 (2019.01); H02J 7/00302 (2020.01); H02J 7/00306 (2020.01);
Abstract

An apparatus and method for diagnosing damage of a switch in a battery protection circuit include a battery protection circuit including a first switch and a second switch connected to a battery pack and a switch damage diagnosing device for measuring in the battery protection circuit and for diagnosing whether any one of the first switch and the second switch is damaged. The source terminal of the first switch and the source terminal of the second switch can be connected to a common source, which can diagnose whether or not the switch is damaged only by measuring the voltage at a certain point without measuring a current.

Find Patent Forward Citations

Yang, Seung. (2025). Device and method for diagnosing damage to switch in battery protection circuit, and battery management device comprising same (U.S. Patent No. 12504477). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12504477

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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