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, 1995
Filed:
May. 04, 1994
Applicant:
Inventors:
Basile Margaritis, Paderborn-Elsen, DE;
Lothar Heinemann, Paderborn, DE;
Assignee:
ABB Patent GmbH, Mannheim, DE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M / ;
U.S. Cl.
CPC ...
363 24 ; 363 56 ;
Abstract
A turn-off relief network for a direct voltage converter includes a transformer having a primary winding. At least one clocked power transistor is connected in series with the primary winding. A first series circuit connected parallel to the primary winding includes a diode and a capacitor. A second series circuit connected parallel to the capacitor includes a reversing inductor, a reversing diode for a capacitor voltage and another transistor.