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:
Oct. 01, 1985
Filed:
Mar. 22, 1984
Applicant:
Inventors:
Alexander Kade, Detroit, MI (US);
Thomas A Radomski, Utica, MI (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P / ;
U.S. Cl.
CPC ...
363 63 ; 318341 ; 318379 ; 363132 ;
Abstract
A transistor bridge driver circuit having reduced operating losses, comprising a driver transistor connected to supply drive current to diagonally opposed bridge transistors and an auxiliary transistor effective when biased conductive to divert driver current away from one of the diagonally opposed bridge transistors. Switching losses are minimized because the bridge is operated in the one quadrant control mode and driver losses are minimized because one driver circuit controls the conduction of two diagonally opposed bridge transistors.