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. 30, 1998
Filed:
Apr. 05, 1996
Applicant:
Inventors:
Joseph Notaro, Hascalucia, CT (US);
Antoine Pavlin, Puyricard, FR;
Jean-Michel Ravon, Fuveau, FR;
Luc Wuidart, Pourrieres, FR;
Assignee:
SGS-Thomson Microelectronics S.A., Saint Genis, FR;
Primary Examiner:
Int. Cl.
CPC ...
H02M / ;
U.S. Cl.
CPC ...
363 89 ; 363127 ;
Abstract
A circuit for controlling two power transistors (24, 26) used an synchronous rectifiers in the secondary side of a switched mode power supply is provided. Current detector circuits (40, 42) measure current through parasitic diodes (28, 30) of the power transistors. It is shown that the synchronisation achieved is more accurate, and the resultant device is simpler and cheaper than previous solutions.