Title :
A boost converter with lossless snubber under minimum voltage stress
Author :
Dong, Wei ; Zhao, Qun ; Liu, Jinjun ; Lee, Fred C.
Author_Institution :
Bradley Dept. of Electr. & Comput. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
Abstract :
A passive lossless turn-on/turn-off snubber network is proposed for the boost PWM converter. Besides the benefit of small number of added components, all the devices block the voltage no more than the output DC voltage. The operation principle and design guideline is presented. Experimental results demonstrate that for 1 kW PFC AC/DC boost converter, the proposed snubber circuit can achieve significant efficiency improvement over the hard-switching converter
Keywords :
AC-DC power convertors; PWM power convertors; power factor correction; snubbers; 1 kW; PFC AC/DC boost converter; boost PWM converter; operation principle; output DC voltage; passive lossless turn-on/turn-off snubber network; snubber circuit; Analog-digital conversion; Capacitors; Circuits; Inductors; Semiconductor diodes; Snubbers; Stress; Switches; Telecommunication switching; Voltage;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2002. APEC 2002. Seventeenth Annual IEEE
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-7404-5
DOI :
10.1109/APEC.2002.989292
