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:
Oct. 06, 2026
Filed:
May. 10, 2024
Applicant:
Rohm Co., Ltd., Kyoto, JP;
Inventor:
Kiyoshi Kansaku, Kyoto, JP;
Assignee:
Rohm Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/36 (2007.01); H02M 1/00 (2007.01); H02M 1/32 (2007.01); H02M 3/158 (2006.01);
U.S. Cl.
CPC ...
H02M 1/36 (2013.01); H02M 1/32 (2013.01); H02M 3/158 (2013.01); H02M 1/0025 (2021.05);
Abstract
A power supply control circuit includes: a soft start generation circuit that outputs a soft start voltage which gradually increases with time; an error signal generation circuit that generates an error signal corresponding to a difference between a feedback voltage corresponding to an output voltage in a switch output stage and the soft start voltage; an output control circuit that controls the switch output stage according to the error signal; and a soft start control circuit that controls the soft start voltage according to the feedback voltage.