A unified approach to modeling, synthesizing, and analyzing quasi-resonant converters

Author

Lin, Bo-Tao ; Lee, Yim-Shu

Author_Institution

Dept. of Electron. Eng., Hong Kong Polytech., Kowloon, Hong Kong

Volume

12

Issue

6

fYear

1997

fDate

11/1/1997 12:00:00 AM

Firstpage

983

Lastpage

992

Abstract

This paper presents a general method of modeling, synthesizing, and analyzing quasi-resonant converters (QRCs), including actively clamped QRCs. First, the concept of the pulse-width modulation (PWM) switch model is generalized to encompass all PWM (nonisolated) converters. Then, by adding inductor-capacitor (LC) elements and auxiliary switches into the PWM switch, QRC families are synthesized. DC and small signal analyses can be carried out based on these switch models. Furthermore, the duality relationship between zero-voltage-switching (ZVS) and zero-current-switching (ZCS) QRCs is established systematically and rigorously

Keywords

PWM power convertors; capacitors; inductors; resonant power convertors; switching circuits; DC signal analyses; PWM switch; ZCS; ZVS; actively clamped quasi-resonant converters; auxiliary switches; duality relationship; inductor-capacitor elements; modeling; pulse-width modulation switch model; quasi-resonant converters analysis; quasi-resonant converters synthesis; small signal analyses; zero-current-switching; zero-voltage-switching; Frequency modulation; Pulse width modulation; Pulse width modulation converters; Resonance; Switches; Switching converters; Switching frequency; Topology; Zero current switching; Zero voltage switching;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/63.641496

Filename

641496