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. 23, 2015
Filed:
Nov. 24, 2011
Satoshi Murakami, Tokyo, JP;
Masaki Yamada, Tokyo, JP;
Ryota Kondo, Tokyo, JP;
Takashi Kaneyama, Tokyo, JP;
Kazutoshi Awane, Tokyo, JP;
Satoshi Murakami, Tokyo, JP;
Masaki Yamada, Tokyo, JP;
Ryota Kondo, Tokyo, JP;
Takashi Kaneyama, Tokyo, JP;
Kazutoshi Awane, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A DC-DC converter in which a primary side and a secondary side are insulated by a transformer, includes: two diodes having anodes respectively connected to both ends of a secondary winding of the transformer and cathodes connected to each other; a series circuit composed of a resistor and a capacitor connected in series; and a snubber circuit formed by connecting the cathodes of the diodes to the connection point between the resistor and the capacitor. Surge voltage caused on the secondary side of the transformer is clamped at the voltage of the capacitor, and surge energy stored in the capacitor is regenerated to a load via the resistor. Thus, surge voltage caused on the secondary side of the transformer is suppressed with a simple configuration, and effective use of surge energy is ensured.