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:
Sep. 22, 2020

Filed:

Jan. 23, 2019
Applicant:

Denso Corporation, Kariya-shi, Aichi-ken, JP;

Inventors:

Eiichirou Shigehara, Nagoya, JP;

Takeshi Hirano, Okazaki, JP;

Akira Tokumasu, Kariya, JP;

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/32 (2007.01); H02H 1/00 (2006.01); G01R 19/165 (2006.01); H02M 3/335 (2006.01); H02H 7/12 (2006.01);
U.S. Cl.
CPC ...
H02H 1/0007 (2013.01); G01R 19/16528 (2013.01); H02H 7/1213 (2013.01); H02M 1/32 (2013.01); H02M 3/33507 (2013.01); H02M 3/33515 (2013.01); G01R 19/1659 (2013.01); G01R 19/16538 (2013.01);
Abstract

A power supply control device includes a first overvoltage detection circuit including a first determination element and a second determination element. The first overvoltage detection circuit is configured to detect an overvoltage state of an output voltage using an AND value of an output of the first determination element and an output of the second determination element. The first determination element is configured to determine that a feedback voltage detected by the first detection element is below a first reference voltage, and the second determination element is configured to determine that an overvoltage detection voltage detected by a second detection element exceeds a second reference voltage. The second detection element is connected in parallel to the first detection element and is configured to detect the output voltage as the overvoltage detection voltage.


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