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:
Aug. 01, 1989
Filed:
Mar. 30, 1988
Applicant:
Inventor:
Takeshi Furuhashi, Nagoya, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
H02H / ;
U.S. Cl.
CPC ...
363 58 ; 363137 ;
Abstract
In a snubber circuit, two transformers for regenerating snubber energy are commonly provided for more than two switching elements in each of the arms of an inverter. The number of snubber energy regenerating transformers can be limited to only two, regardless of the number of switching elements. The circuit can be simple and compact, without decreasing the efficiency of regeneration of snubber energy.