A fully soft-switched extended-period quasi-resonantpower-factor-correction circuit |
| |
Authors: | Hui SYR Cheng KWE Prakash SRN |
| |
Affiliation: | Dept. of Electr. Eng., Sydney Univ., NSW; |
| |
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: | |
|
|