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:
Jul. 16, 2019
Filed:
Oct. 15, 2015
Applicant:
Rohm Co., Ltd., Kyoto, JP;
Inventors:
Hirokazu Oki, Kyoto, JP;
Kiyoaki Hoshino, Kyoto, JP;
Seiichiro Kondo, Kyoto, JP;
Yuichi Kokusho, Kyoto, JP;
Assignee:
Rohm Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H02M 3/337 (2006.01); H02M 1/00 (2006.01); H02M 1/38 (2007.01);
U.S. Cl.
CPC ...
H02M 3/3378 (2013.01); H02M 1/38 (2013.01); H02M 2001/0054 (2013.01); H02M 2001/0058 (2013.01); Y02B 70/1491 (2013.01);
Abstract
A switch driving circuit is provided, wherein the switch driving circuit has a function of periodically updating a simultaneous OFF time prepared to soft-switch an upper switch and a lower switch of a switching output circuit, and is configured to monitor how an output power or an input power of the switching output circuit is changed depending on previous updating of the simultaneous OFF time to determine new updated contents.