Drive circuits for synchronous rectifiers

Details Drive circuits for synchronous rectifiers Drive circuits for synchronous rectifiers

2005-11-01

2005-11-01

Berhane, Adolf (Department: 2838)

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

C363S097000

Reexamination Certificate

active

06961253

ABSTRACT:
A method and system for providing synchronous rectification in power converters that includes controlling turnoff of a synchronous rectifier according to a timing signal representative of the switching time of a switch that is coupled to input of the power converter. Such a timing signal may be obtained directly or indirectly in various ways; for example, by sensing the voltage across the primary switch, or by sensing the drive voltage of the primary switch. Additional alternatives in an isolated converter having a transformer with a primary winding that is selectively coupled to the electrical power source includes sensing the primary winding voltage, for example, by directly sensing the primary voltage or by sensing the voltage across an auxiliary winding that is closely coupled to the primary winding.

REFERENCES:
patent: 4857822 (1989-08-01), Tabisz et al.
patent: 4922404 (1990-05-01), Ludwig et al.
patent: 5029062 (1991-07-01), Capel
patent: 5528482 (1996-06-01), Rozman
patent: 5721483 (1998-02-01), Kolluri et al.
patent: 5872705 (1999-02-01), Loftus, Jr. et al.
patent: 5920475 (1999-07-01), Boylan et al.
patent: 5999417 (1999-12-01), Schlecht
patent: 6002597 (1999-12-01), Rozman
patent: 6011703 (2000-01-01), Boylan et al.
patent: 6055170 (2000-04-01), Yee
patent: 2608857 (1988-06-01), None
patent: WO 98/54827 (1998-12-01), None
J.A. Cobos: “Self Driven Synchronous Rectification in Resonant Topologies: Forward ZVS-MRC, Forward ZCS-QRC and LCC-PRC.”
A. Vithanage et al.: “150W board mounted power supply module using highly compact and efficient sysnchronous rectifiers”, IEEE, pp. 177-183, XP000873665.

Affiliated with

Also associated with

Rating

Drive circuits for synchronous rectifiers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Drive circuits for synchronous rectifiers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drive circuits for synchronous rectifiers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3486020