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 9678166 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 13, 2017

Filed:

Nov. 25, 2014
Applicant:

Denso Corporation, Kariya, Aichi-pref., JP;

Inventors:

Kazutaka Honda, Chiryu, JP;

Tetsuya Makihara, Nukata-gun, JP;

Shogo Hikosaka, Kariya, JP;

Assignee:

DENSO CORPORATION, Kariya, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 27/416 (2006.01); G01R 31/36 (2006.01); G01R 19/165 (2006.01);
U.S. Cl.
CPC ...
G01R 31/3658 (2013.01); G01R 19/16542 (2013.01);
Abstract

A first part circuit and an operational amplifier form a level shift circuit, which selects either one of battery cells forming an assembled battery and extracts and holds a voltage representing an inter-terminal voltage of a selected battery cell. A second part circuit and the operational amplifier form a residual voltage generation circuit, which generates a residual voltage by amplifying a differential voltage between a conversion subject voltage and an analog voltage corresponding to a conversion result of an A/D conversion circuit and applies the residual voltage to the A/D conversion circuit as a conversion subject voltage. A switchover circuit operates the operational amplifier as either one of the level shift circuit and the residual voltage generation circuit and switches over a connection-state to apply a voltage held by the level shift circuit to the A/D conversion circuit and the residual voltage generation circuit as a conversion subject voltage.


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Honda, Kazutaka. (2017). Voltage detection device (U.S. Patent No. 9678166). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9678166

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