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.:
Date of Patent:
Aug. 17, 2021
Filed:
Feb. 06, 2019
Applicant:
Rohm Co., Ltd., Kyoto, JP;
Inventor:
Kiminobu Sato, Kyoto, JP;
Assignee:
Rohm Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 19/165 (2006.01); H02M 3/157 (2006.01); H02M 3/158 (2006.01); H02H 3/20 (2006.01);
U.S. Cl.
CPC ...
G01R 19/16552 (2013.01); H02M 3/157 (2013.01); H02M 3/158 (2013.01); H02H 3/207 (2013.01);
Abstract
A voltage monitoring circuit for monitoring an output voltage of a power supply device. The power supply device includes a voltage conversion part that converts an input voltage to the output voltage according to a difference between a feedback voltage based on the output voltage and a first reference voltage. The voltage monitoring circuit includes: a threshold voltage generation circuit configured to generate a threshold voltage from the first reference voltage; and a comparator configured to compare the threshold voltage with the feedback voltage.