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:
Jan. 26, 1999
Filed:
Dec. 02, 1997
Applicant:
Inventors:
Eiichi Ikawa, Tokyo, JP;
Akira Kawaguchi, Saitama-ken, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
H02M / ; H02M / ;
U.S. Cl.
CPC ...
363 57 ; 363136 ;
Abstract
The power converter extracts the accumulated energy accumulated in a snubber capacitor (a first capacitor) from the second capacitor in a series circuit, composed of a second capacitor and a diode, which is provided in parallel with that snubber capacitor, and uses it as the driving power source for a self-turn-off-semiconductor device.