DocumentCode :
3778511
Title :
A novel active snubber for high-power boost converters
Author :
M.M. Jovanovic; Yungtaek Jang
Author_Institution :
Power Electron. Lab., Delta Products Corp., NC, USA
Volume :
1
fYear :
1999
Firstpage :
619
Abstract :
A technique which improves the performance of the boost converter by reducing the reverse-recovery-related losses in the boost switch and rectifier with an active snubber that is implemented with a minimum number of components is presented. This minimum-component count snubber consists of a snubber inductor, an auxiliary switch, and a rectifier. The proposed technique reduces the reverse-recovery-related losses by controlling the turn-off di/dt rate of the rectifier current with the snubber inductor connected in series with the boost switch and rectifier. The voltage and current stresses of the components in the proposed active-snubber boost converter are similar to those in its conventional "hard-switched" counterpart.
Keywords :
"Snubbers","Switches","Rectifiers","Stress","Zero voltage switching","Electromagnetic compatibility","Inductors","Zero current switching","Switching circuits","Power electronics"
Publisher :
ieee
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1999. APEC ´99. Fourteenth Annual
Print_ISBN :
0-7803-5160-6
Type :
conf
DOI :
10.1109/APEC.1999.749752
Filename :
749752
Link To Document :
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