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. 25, 2010
Filed:
Nov. 15, 2005
Hiroshi Mochikawa, Tokyo, JP;
Tateo Koyama, Saitama-ken, JP;
Hiroshi Mochikawa, Tokyo, JP;
Tateo Koyama, Saitama-ken, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
There are provided: sets of pairs of main circuit switching elements (), () that supply power to a load, connected in series with a DC power source; free-wheel diodes (), () connected in anti-parallel with these main circuit switching elements; and a reverse voltage application circuit () that applies reverse voltage smaller than the DC voltage source to the free-wheel diodes when these free-wheel diodes cut off. The reverse voltage application circuit includes a current suppression circuit () that suppresses the main circuit current flowing in the low-voltage DC voltage power source on reverse recovery of the free-wheel diodes.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile