A Study on the High Power-Factor AC/DC converter using Resonant Auxiliary Circuit

공진형 보조 회로를 이용한 고역률 AC/DC 컨버터에 관한 연구

  • Published : 2002.07.10

Abstract

A Single-Stage Single-Switch power-factor- correction(PFC) AC/DC Converter with universal input is presented in this paper. The PFC Converter can be achieved based upon the continuous current mode(CCM). The switch has less current and voltage stresses over a wide range of load variation so that a low voltage rating device can be used. The presented converter features high power factor high efficiency, and low cost. An 90W prototype was implemented to show that it has 70% efficiency with low voltage stress over universal line input.

Keywords