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:
May. 04, 2021
Filed:
Aug. 22, 2018
Applicant:
Diamond Electric Mfg. Co., Ltd., Osaka, JP;
Inventors:
Masao Watanabe, Osaka, JP;
Shogo Nakahara, Osaka, JP;
Assignee:
DIAMOND ELECTRIC MFG. CO., LTD., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/08 (2006.01); H02M 1/088 (2006.01); H02M 3/335 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 1/083 (2013.01); H02M 1/088 (2013.01); H02M 3/33576 (2013.01); H02M 2001/0058 (2013.01);
Abstract
A DC-DC converter has a configuration in which a first full-bridge circuit and a second full-bridge circuit are connected via a transformer and an inductor. A control circuit causes output power to follow target power by changing switching frequencies (angular frequencies) of switching elements so that that an inductor current flowing during a dead time of the switching elements becomes larger than or equal to a threshold current.