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:
Jun. 16, 1998
Filed:
Nov. 01, 1996
Applicant:
Inventors:
Horst Gruning, Wettingen, CH;
Jochen Rees, Waldshut, DE;
Assignee:
Asea Brown Boveri Ag, Baden, CH;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H / ;
U.S. Cl.
CPC ...
363 58 ; 363137 ;
Abstract
A converter circuit arrangement is disclosed. As a result of the fact that GTOs are hard driven, reverse-parallel connected diodes have a reverse current response dV/dt of 2 kV/.mu.s to 10 kV/.mu.s and a low-inductance freewheeling circuit is provided between the DC voltage source and the GTOs, the GTOs and the reverse-parallel connected diodes can be operated without a protective circuit.