Title :
Comparison of single-phase active-clamped PFC converters
Author :
Xu, David M. ; Qian, Z. ; He, X.
Author_Institution :
Inst. of Power Electron., Zhejiang Univ., Hangzhou, China
Abstract :
A comparison study was conducted to characterize the operation principles, component stresses and overall efficiencies of some single-phase active-clamped PFC converters. Based on a general soft switching approach with a resonant active-clamped branch, ZCS-PWM or ZVS-PWM of the main switch can be achieved in a topology with various control strategy, while offering ZCS operation of its auxiliary switch and soft-switching conditions of its diode. In the full range of loads, they can be operated in the constant frequency soft-switching mode. Advantages and disadvantages were identified for each method. Simulation and experiment results of a 3 kW PFC converter are provided
Keywords :
PWM power convertors; power factor correction; resonant power convertors; switching circuits; 3 kW; ZCS-PWM; ZVS-PWM; active-clamped PFC converters; auxiliary switch; component stresses; constant frequency soft-switching mode; control strategy; diode; main switch; operation principles; pulsewidth modulation; resonant active-clamped branch; single-phase; soft switching; soft-switching conditions; zero current switching; zero voltage switching; Diodes; Power electronics; Pulse width modulation; Pulse width modulation converters; Resonance; Switches; Switching converters; Switching frequency; Topology; Voltage;
Conference_Titel :
Power Electronics Specialists Conference, 1997. PESC '97 Record., 28th Annual IEEE
Conference_Location :
St. Louis, MO
Print_ISBN :
0-7803-3840-5
DOI :
10.1109/PESC.1997.616693
