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:
Feb. 27, 2024

Filed:

Aug. 27, 2021
Applicant:

Denso Corporation, Kariya, JP;

Inventor:

Tomomichi Mizoguchi, Kariya, JP;

Assignee:

DENSO CORPORATION, Kariya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/3835 (2019.01); H02J 7/00 (2006.01);
U.S. Cl.
CPC ...
G01R 31/3835 (2019.01); H02J 7/0048 (2020.01);
Abstract

A voltage detection apparatus includes a capacitor and first and second differential voltage detection circuits. A reference voltage supplying unit supplies a first reference voltage from a first output terminal to the first differential voltage detection circuit, and supplies a second reference voltage from a second output terminal to the second differential voltage detection circuit. A fault determining unit determines a fault in the first or second differential voltage detection circuit based on a first voltage that is inputted from a first input terminal and a second voltage that is inputted from the second input terminal. A voltage output circuit is supplied a third reference voltage from a third output terminal between the first output terminal and the second output terminal, and outputs a third voltage to a third input terminal between the first input terminal and the second input terminal.


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