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:
Dec. 29, 2020
Filed:
Jun. 20, 2019
Applicant:
Rohm Co., Ltd., Kyoto, JP;
Inventors:
Shun Fukushima, Kyoto, JP;
Yosuke Fukumoto, Kyoto, JP;
Assignee:
Rohm Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H02H 7/12 (2006.01); H02M 1/00 (2006.01); H02M 3/156 (2006.01); H02M 3/158 (2006.01);
U.S. Cl.
CPC ...
H02M 3/33592 (2013.01); H02H 7/1213 (2013.01); H02M 3/156 (2013.01); H02M 3/158 (2013.01); H02M 2001/0054 (2013.01);
Abstract
A switching power supply device has a switching output stage generating an output voltage from an input voltage by switching operation and a controller controlling the switching output stage based on a feedback voltage commensurate with the output voltage. The switching power supply device can perform switching suspension control whereby it stops switching operation on detecting a light-load condition based on the feedback voltage, though it restarts switching operation on detection of an overvoltage condition during suspension of switching operation.