Title :
Novel zero-voltage-transition current-fed full-bridge PWM converter for single-stage power factor correction
Author :
Cho, Jung-Goo ; Jeong, Chang-Yong ; Lee, Hong-Sik ; Rim, Geun-Hie
Author_Institution :
Power Electron. Res. Div., Korea Electrotechnol. Res. Inst., Changwon, South Korea
fDate :
11/1/1998 12:00:00 AM
Abstract :
A novel zero-voltage-transition (ZVT) current-fed full-bridge pulsewidth modulation (PWM) power converter for single-stage power factor correction (PFC) is presented to improve the performance of the previously presented ZVT converter. A simple auxiliary circuit which includes only one active switch provides a zero-voltage-switching (ZVS) condition to all semiconductor devices (two active switches are required for the previous ZVT converter). This leads to reduced cost and a simplified control circuit compared to the previous ZVT converter. The ZVS is achieved for wide line and load ranges with minimum device voltage and current stresses. Operation principle, control strategy and features of the proposed power converter are presented and verified by the experimental results from a 1.5 kW 100 kHz laboratory prototype
Keywords :
PWM power convertors; bridge circuits; power factor correction; power semiconductor switches; switching circuits; 1.5 kW; 100 kHz; ZVS current-fed full-bridge PWM power converter; control strategy; device current stress; device voltage stress; load range; operation principle; semiconductor devices; simple auxiliary circuit; single-stage power factor correction; zero-voltage-switching; Costs; Power factor correction; Power semiconductor switches; Pulse width modulation; Pulse width modulation converters; Semiconductor devices; Stress; Switching circuits; Switching converters; Zero voltage switching;
Journal_Title :
Power Electronics, IEEE Transactions on
