Soft transition converter

Details Soft transition converter Soft transition converter

2005-03-01

2005-03-01

Laxton, Gary L. (Department: 2838)

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

C363S098000, C363S132000

Reexamination Certificate

active

06862195

ABSTRACT:
The present invention is a circuit and method for reducing switching and reverse recovery losses in the output rectifiers while creating zero voltage switching conditions for the primary switchers. There are described two output configurations, one employing a soft commutation inductor element a bridge rectifier and a output filter capacitor, the second using a soft commutation inductor element a rectification-filtering bridge composed by two capacitors and two capacitors. Both secondary circuits can be driven by three primary circuits. A first circuit is a full bridge with phase shift control, and a second circuit is a half bridge topology with an additional bydirectional switch which achieves two goals, on to get soft switching commutation across all the primary switches, the second to create the right waveforms in the secondary suitable with the claims in this invention. The third topology is a phase shifted two transistors forward. The circuits claimed in this invention can provide soft commutation across the primary switching elements and secondary rectifier means, clamping the voltage across the rectifiers to the output voltage eliminating the need for snubbers circuits both in primary and the secondary section.

REFERENCES:
patent: 2866909 (1958-12-01), Trousdale
patent: 4435750 (1984-03-01), Schutten et al.
patent: 4564897 (1986-01-01), Okamoto et al.
patent: 4651265 (1987-03-01), Stacey et al.
patent: 4864479 (1989-09-01), Steigerwald et al.
patent: 4991075 (1991-02-01), Saitou et al.
patent: 5359277 (1994-10-01), Cowett
patent: 5510972 (1996-04-01), Wong
patent: 5555494 (1996-09-01), Morris
patent: 5638260 (1997-06-01), Bees
patent: 5793624 (1998-08-01), Couture et al.
patent: 5838558 (1998-11-01), Tan et al.
patent: 5877951 (1999-03-01), Mweene
patent: 5963436 (1999-10-01), Yoshida
patent: 5969481 (1999-10-01), Konopka
patent: 6038142 (2000-03-01), Fraidlin et al.
patent: 6091616 (2000-07-01), Jacobs et al.
patent: 6324080 (2001-11-01), Laeuffer

Affiliated with

Also associated with

Rating

Soft transition converter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Soft transition converter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Soft transition converter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3416654