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. 20, 1994
Filed:
Oct. 19, 1992
Applicant:
Inventors:
Shuichi Ushiki, Tokyo, JP;
Ryoji Saito, Tokyo, JP;
Assignee:
Origin Electric Company, Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M / ;
U.S. Cl.
CPC ...
363 21 ; 363 97 ; 363131 ;
Abstract
A resonant forward converter comprises a saturable inductor connected in series to a primary winding of a transformer and a switching device. The saturable inductor has a predetermined value of inductance in a light current region and a small value of inductance at a predetermined integral voltage due to magnetic saturation.