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:
Mar. 27, 1990
Filed:
May. 19, 1989
Applicant:
Inventor:
Arthur B O'Dell, Cupertino, CA (US);
Assignee:
Boschert, Inc., Fremont, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H02M / ;
U.S. Cl.
CPC ...
363 56 ; 363 21 ; 363 97 ;
Abstract
A snubber circuit reduces the magnitude of a flyback voltage pulse across a switching transistor caused by a transformer while incurring essentially no power losses. In one embodiment, the snubber circuit modulates the voltage pulse across the switching transistor so that the sum of the input line voltage and the flyback voltage pulse remain substantially independent of input voltage.