Title :
A technique for reducing rectifier reverse-recovery-related losses in high-voltage, high-power boost converters
Author_Institution :
DELTA Power Electron. Lab. Inc., Blacksburg, VA, USA
Abstract :
A circuit technique that reduces the boost power converter losses caused by the reverse-recovery characteristics of the rectifier is described. The losses are reduced by inserting an inductor in the series path of the boost switch and the rectifier to control the di/dt rate of the rectifier during its turn-off. The energy from the inductor after the boost switch turn-off is returned to the input or delivered to the output via an active snubber. The same technique can be extended to any member of the PWM power converter family.
Keywords :
"Rectifiers","Switches","Snubbers","Voltage","Active inductors","Switching frequency","Switching circuits","Pulse width modulation","Topology","Switching converters"
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1997. APEC ´97 Conference Proceedings 1997., Twelfth Annual
Print_ISBN :
0-7803-3704-2
DOI :
10.1109/APEC.1997.575770
