Title :
Implementation of ZVT soft switching technique in a single-phase PFC rectifier for server power supply
Author :
Liu, Hsing-Fu ; Liu, Yung-Hiang ; Tzou, Ying-Yu
Author_Institution :
Power Electron. & Motion Control Lab., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
This paper presents the design and implementation of a zero-voltage-transition power factor correction (PFC) converter which can achieve high power factor, low harmonic distortion, and high efficiency. Zero-voltage-transition soft-switching technique has been applied to reduce the switching losses of the auxiliary switching circuit for a single-phase AC-DC converter with unity power factor. Its operation principle and design equations have been given. A 2 kW, 200 kHz, soft-switching single-phase PFC converter has been constructed. An efficiency of 94% at rated output has been measured. Experimental results show the developed design procedure for the ZVT soft-switching PFC converter can achieve unity power factor, high efficiency, and low EMI
Keywords :
AC-DC power convertors; power factor correction; power supplies to apparatus; rectifying circuits; switching circuits; 2 kW; 200 kHz; 94 percent; ZVT soft switching technique; auxiliary switching circuit; design equations; high efficiency; high power factor; low EMI; low harmonic distortion; operation principle; power factor correction converter; server power supply; single-phase AC-DC converter; single-phase PFC rectifier; soft-switching technique; switching losses reduction; unity power factor; zero-voltage-transition converter; Circuits; Control engineering; Electromagnetic interference; Power factor correction; Power supplies; Reactive power; Resonance; Switches; Switching converters; Switching loss;
Conference_Titel :
Power Electronics and Motion Control Conference, 2000. Proceedings. IPEMC 2000. The Third International
Conference_Location :
Beijing
Print_ISBN :
7-80003-464-X
DOI :
10.1109/IPEMC.2000.884555
