Title :
A fully soft-switched extended-period quasi-resonant power-factor-correction circuit
Author :
Hui, S.Y.R. ; Cheng, K. W Eric ; Prakash, Saligram R Narayana
fDate :
9/1/1997 12:00:00 AM
Abstract :
This paper presents the design criteria, procedure, and implementation of a soft-switched power-factor-correction (PFC) circuit based on the extended-period quasi-resonant (EPQR) principles. All power electronic devices including switches and diodes in the circuit are fully soft switched. The design method is demonstrated in a prototype circuit. The operating principles are confirmed with computer simulation and experimental results. A comparison of the EP-QR operation and zero-voltage-transition (ZVT) pulse-width modulation (PWM) method
Keywords :
PWM power convertors; power factor correction; power semiconductor diodes; power semiconductor switches; resonant power convertors; switching circuits; PWM; ZVT; computer simulation; diodes; extended-period quasi-resonant circuit; power electronic devices; power harmonics; power-factor-correction circuit; pulse-width modulation; soft-switched circuit; switches; zero-voltage-transition; Buck converters; Circuit simulation; Computer simulation; Electromagnetic interference; Power system harmonics; Pulse measurements; Pulse width modulation; Reactive power; Switches; Switching circuits;
Journal_Title :
Power Electronics, IEEE Transactions on
