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:
Feb. 07, 2017
Filed:
Aug. 26, 2014
Applicant:
Rohm Co., Ltd., Kyoto, JP;
Inventor:
Yuichi Shinozaki, Kyoto, JP;
Assignee:
ROHM CO., LTD, Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 1/00 (2006.01); H02M 3/335 (2006.01); H02M 1/36 (2007.01); H02M 1/34 (2007.01);
U.S. Cl.
CPC ...
H02M 3/33546 (2013.01); H02M 1/36 (2013.01); H02M 3/33523 (2013.01); H02M 3/33569 (2013.01); H02M 3/33592 (2013.01); H02M 2001/0058 (2013.01); H02M 2001/342 (2013.01); Y02B 70/1475 (2013.01); Y02B 70/1491 (2013.01);
Abstract
A DC/DC converter includes: a transformer; a main MOS transistor connected in series between a primary side inductance of the transformer and a ground potential; a synchronous rectification MOS transistor connected in series between a secondary side inductance of the transformer and the ground potential; a refluxing MOS transistor connected between a secondary side output of the transformer and the ground potential; and a controller. If an operation is stopped, the controller stops the main MOS transistor and stops the synchronous rectification MOS transistor and the refluxing MOS transistor after a lapse of a predetermined period of time.