A modified asymmetrical pulse-width-modulated resonant DC/DC converter topology

Author

Mangat, Simmi ; Xi, Youhao ; Jain, Praveen K. ; Liu, Yan Fei

Author_Institution

Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que., Canada

Volume

1

fYear

1998

fDate

17-22 May 1998

Firstpage

662

Abstract

A modified asymmetrical pulse-width-modulated resonant DC/DC converter employing an auxiliary circuit is proposed in this paper. The auxiliary circuit consists of a network of two capacitors and an inductor. The aim of this network is to produce zero-voltage-switching (ZVS) over a wide input voltage range, while reducing the voltage and current stress across the resonant inductor. A detailed analysis is presented and performance curves are given. Experimental results for a 35 W, 5 V converter show an efficiency of about 81% at a constant operating frequency of 500 kHz

Keywords

DC-DC power convertors; PWM power convertors; resonant power convertors; switching circuits; 35 W; 5 V; 500 kHz; 81 percent; ZVS; asymmetrical PWM resonant DC/DC converter; auxiliary circuit; capacitors; current stress; efficiency; inductor; performance curves; resonant inductor; voltage stress; wide input voltage range; zero-voltage-switching; Capacitors; DC-DC power converters; Frequency conversion; Inductors; Performance analysis; Pulse circuits; RLC circuits; Resonance; Stress; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1998. PESC 98 Record. 29th Annual IEEE

Conference_Location

Fukuoka

ISSN

0275-9306

Print_ISBN

0-7803-4489-8

Type

conf

DOI

10.1109/PESC.1998.701969

Filename

701969