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:
Jun. 01, 2021
Filed:
Aug. 22, 2018
Diamond Electric Mfg. Co., Ltd., Osaka, JP;
Masao Watanabe, Osaka, JP;
Shogo Nakahara, Osaka, JP;
DIAMOND ELECTRIC MFG. CO., LTD., Osaka, JP;
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 alternately turns on and off switching elements. At a dead timing when the switching elements are switched, an inductor current flowing through an equivalent inductor that is equivalent to the transformer and the inductor is larger than or equal to a threshold current. The threshold current is set so that the energy stored in the equivalent inductor becomes greater than or equal to the total energy stored in capacitors that are respectively connected in parallel with the switching elements.