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:
Mar. 23, 2021
Filed:
Jul. 14, 2017
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
H03K 17/0812 (2006.01); H02H 7/22 (2006.01); H02J 7/14 (2006.01); H02J 7/00 (2006.01); H02J 7/34 (2006.01); H02H 9/04 (2006.01); H02H 1/00 (2006.01);
U.S. Cl.
CPC ...
H03K 17/08122 (2013.01); H02H 1/0007 (2013.01); H02H 7/222 (2013.01); H02H 9/041 (2013.01); H02J 7/0029 (2013.01); H02J 7/0031 (2013.01); H02J 7/1423 (2013.01); H02J 7/1461 (2013.01); H02J 7/34 (2013.01); H02J 7/342 (2020.01);
Abstract
The present invention relates to a system and a method for protecting a circuit between batteries, in which counter-electromotive force generated from the lead-storage battery is prevented from being applied to a MOSFET switch when power is cut off through the MOSFET switch in a circuit in which a vehicle lead-storage battery and a lithium polymer battery are connected to each other to prevent the MOSFET switch from overcurrent and prevent current, which leaks from the lead-storage battery when the lead-storage battery is charged, from being conducted to a path other than a determined path in advance.