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:
Mar. 09, 2021

Filed:

Apr. 24, 2019
Applicant:

Yazaki Corporation, Tokyo, JP;

Inventors:

Mitsuaki Morimoto, Susono, JP;

Eiichiro Oishi, Susono, JP;

Assignee:

Yazaki Cornoration, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 19/14 (2006.01); H02J 1/10 (2006.01); H02H 7/20 (2006.01); G01R 19/00 (2006.01); H02H 1/00 (2006.01);
U.S. Cl.
CPC ...
G01R 19/14 (2013.01); G01R 19/0038 (2013.01); H02H 1/0007 (2013.01); H02H 7/20 (2013.01); H02J 1/10 (2013.01);
Abstract

A current detection device includes a current sensor and a controller. The current sensor outputs a detection voltage according to a conduction current flowing through a bi-directional circuit in which current is capable of flowing in a positive direction and a negative direction that is a direction opposite to the positive direction. The controller calculates the conduction current based on the detection voltage output from the current sensor. For example, the controller calculates the conduction current based on an absolute value of a difference between a reference voltage that is the detection voltage output during a non-conductive state in which current is not flowing through the bi-directional circuit, and the detection voltage output during a conductive state in which current is flowing through the bi-directional circuit.


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