Power converter having a low-loss clamp and method of operation

Details Power converter having a low-loss clamp and method of operation Power converter having a low-loss clamp and method of operation

1998-03-06

1999-08-10

Sterrett, Jeffrey

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

H02M 114

Patent

active

059368535

ABSTRACT:
For use with a power converter having a rectifier that receives current from a secondary side of transformer and delivers the current to an output thereof via an output inductor, a low loss clamp for, and method of, attenuating ringing energy in the secondary side. In one embodiment, the clamp includes: (1) an auxiliary transformer coupled across a component in the secondary side and (2) an auxiliary switch, interposed between the auxiliary transformer and the output, that operates as a function of a voltage of the output to cause the auxiliary transformer to receive at least a portion of the ringing energy and deliver the portion to the output.

REFERENCES:
patent: 2377180 (1945-05-01), Pohm
patent: 3663940 (1972-05-01), Schwarz
patent: 3777248 (1973-12-01), Vermolen
patent: 3916286 (1975-10-01), Waehner
patent: 4488211 (1984-12-01), Miyoiri
Sabate, J.A., Vlatkovic, V., Ridley, R.B., and Lee, F.C.; High-Voltage, High-Power, ZVS, Full-Bridge PWM Converter Employing an Active Snubber; IEEE, Jun., 1991; pp. 158 through 163.
Redl, Richard, Sokal, Nathon O., Balogh, Laszlo; A Novel Soft-Switching Full-Bridge DC.DC Converter: Analysis, Design Considerations, and Experimental Results at 1.5 kW, 100 kHz; IEEE, Aug., 1990; pp. 162 through 172.
Harada, Koosuke and Sakamoto, Hiroshi; Switched Snubber For High Frequency Switchin; IEEE, Aug., 1990; pp. 181 through 188.
Hua, Guichao, Lee, Fred C. and Jovanovic, Milan M,; An Improved Zero-Voltage-Switched PWM Converter Using a Saturable Inductor; IEEE, Apr., 1991; pp. 189 through 194.
Mweene, Loveday H., Wright, Chris A., Schlecht, Martin F.; A 1 kW, 500 kHz Front-End Converter for a Distributed Power Supply System; IEEE, Mar., 1989, pp. 423 through 432.

Affiliated with

Also associated with

Rating

Power converter having a low-loss clamp and method of operation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Power converter having a low-loss clamp and method of operation , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power converter having a low-loss clamp and method of operation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1126248