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:
May. 03, 2022

Filed:

Aug. 11, 2017
Applicant:

Gs Yuasa International Ltd., Kyoto, JP;

Inventor:

Masayuki Imura, Kyoto, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 7/18 (2006.01); H02H 1/00 (2006.01); B60L 3/00 (2019.01); H02J 7/00 (2006.01); H02H 3/087 (2006.01); G01N 27/416 (2006.01);
U.S. Cl.
CPC ...
H02H 1/0007 (2013.01); B60L 3/0046 (2013.01); H02H 3/087 (2013.01); H02H 7/18 (2013.01); H02J 7/0029 (2013.01); G01N 27/416 (2013.01); H02H 1/00 (2013.01); H02J 7/00304 (2020.01);
Abstract

An overcurrent detection device including: a current detection resistor that is connected in series to a main circuit and is configured to cause a potential difference at both ends according to a current flowing through the main circuit; a current detection circuit that includes a pair of connection portions and is configured to detect a potential difference between the pair of connection portions; a pair of voltage detection lines connecting the both ends of the current detection resistor to the pair of connection portions in the current detection circuit; and an erroneous detection prevention unit configured to prevent an increase in the potential difference between the pair of connection portions when at least any one of the pair of voltage detection lines has a connection failure.


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