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:
Apr. 28, 2020

Filed:

May. 25, 2017
Applicant:

Fujitsu Ten Limited, Kobe-shi, Hyogo, JP;

Inventors:

Yukio Ishikawa, Kobe, JP;

Kensuke Matsuda, Kobe, JP;

Masahiko Kusaki, Kobe, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/3835 (2019.01); H02J 7/00 (2006.01); G01R 31/396 (2019.01); G01R 31/392 (2019.01);
U.S. Cl.
CPC ...
G01R 31/3835 (2019.01); G01R 31/396 (2019.01); H02J 7/0021 (2013.01); H02J 7/0032 (2013.01); H02J 7/0068 (2013.01); G01R 31/392 (2019.01); Y02T 10/7055 (2013.01);
Abstract

A voltage detecting device according to an aspect of embodiments includes a detecting unit and a mode switching unit. The detecting unit detects voltages of battery cells of a battery stack in which the battery cells are connected to each other. The mode switching unit switches between an active mode in which the detecting unit detects the voltages and a standby mode in which a current flowing into the detecting unit is less than a predetermined value. Moreover, the detecting unit includes a voltage detecting unit that detects the voltages of the battery cells and/or a voltage of a power supply of the detecting unit in a predetermined interval. The mode switching unit switches between the active mode and the standby mode in accordance with a timing at which the voltage detecting unit detects the voltage (s).


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