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:
Sep. 25, 2012
Filed:
Nov. 13, 2008
Applicant:
Shiro Fukuda, Tokyo, JP;
Inventor:
Shiro Fukuda, Tokyo, JP;
Assignee:
MERSTech, Inc., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A protection circuit equipped magnetic energy recovery switch including a magnetic energy recovery switch having at least two reverse-conductive type semiconductor switches and two capacitors employs a protection circuit and control method for protecting the capacitors against an overvoltage or short-circuited discharge, and protecting the reverse-conductive type semiconductor switches and a load against an overvoltage or overcurrent, and can be used as a controller or a current limiter.