Electric power conversion systems – Current conversion – Including automatic or integral protection means
Patent
1998-09-14
2000-04-18
Sterrett, Jeffrey
Electric power conversion systems
Current conversion
Including automatic or integral protection means
363126, H02H 7125
Patent
active
060522941
ABSTRACT:
For use in a power supply having a rectifying diode and a snubber circuit that includes a snubber inductor for absorbing a portion of a reverse recovery current associated with the rectifying diode, a circuit and method for resetting the snubber inductor and a power supply employing the circuit and method. In one embodiment, the circuit includes a reset capacitor, coupled to the snubber inductor, that has sufficient capacity to impress a resetting voltage across the snubber inductor. The circuit also includes an activation circuit, coupled between the reset capacitor and an output of the power supply, that creates a voltage differential between the reset capacitor and the output to allow the reset capacitor to attain the resetting voltage.
REFERENCES:
patent: 4611267 (1986-09-01), McMurray
patent: 4977493 (1990-12-01), Smith
patent: 5351179 (1994-09-01), Tsai et al.
patent: 5414613 (1995-05-01), Chen
patent: 5636114 (1997-06-01), Bhagwat et al.
patent: 5731966 (1998-03-01), Liu
patent: 5815386 (1998-09-01), Gordon
patent: 5828559 (1998-10-01), Chen
patent: 5877947 (1999-03-01), Chen et al.
patent: 5898581 (1999-04-01), Liu
patent: 5923547 (1999-07-01), Mao
"Novel Zero-Voltage and Zero-Current Switching (ZVZCS) Full Bridge PWM Converter Using a Simple Auxiliary Circuit" by Jung G. Cho, Ju W. Baek, Chang Y. Jeong, Dong W. Yoo, Hong S. Lee and Geun H. Rim; 1998 IEEE; pp. 834-839.
"A 48V, 1.5kW, Front-end Zero-Voltage Switched, PWM Converter with Lossless Active Snubbers for Output Rectifiers" by Dhaval B. Dalal and Fu-Sheng Tsai; pp. 722-728; Aug. 1998.
"An Improved ZVZCS PWM FB DC/DC Converter Using Energy Recovery Snubber" by Eun-Soo Kim, Kee-Yeon Joe, Moon-Ho Kye; Yoon-Ho Kim, Byung-Do Yoon; 1997 IEEE; pp. 1014-1019.
Jacobs Mark E.
Liu Rui
Mao Hengchun
Lucent Technologies - Inc.
Sterrett Jeffrey
LandOfFree
Power supply snubber reset circuit 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 supply snubber reset circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power supply snubber reset circuit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2341495