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:
Oct. 02, 2018
Filed:
Feb. 05, 2014
Mitsubishi Electric Corporation, Tokyo, JP;
Mao Kawamura, Tokyo, JP;
Yohei Matsuda, Tokyo, JP;
Mitsubishi Electric Corporation, Chiyoda-ku, Tokyo, JP;
Abstract
An isolated DC/DC converter () includes a full-bridge type switching circuit. A primary winding of a transformer () and a resonance reactor () are connected in series to each other. Another end of each of the primary winding and the resonance reactor () is connected to one of middle points between switching elements. First and second surge suppression diodes (Dand D) are provided to a node between the resonance reactor () and the primary winding of the transformer () and between a positive side and a negative side of a capacitor (). This configuration suppresses a surge voltage applied to the transformer by releasing surge energy of the resonance reactor () caused by a recovery of rectifying diodes (Dto D) on a secondary side of the transformer () via the surge suppression diodes (Dand D).