New soft switched PWM converter with minimized conduction loss of auxiliary switch

Author

Joung, G.B.

Author_Institution

Dept. of Inf. & Commun. Eng., Woosuk Univ., Jeonbuk, South Korea

Volume

2

fYear

1998

fDate

17-22 May 1998

Firstpage

1803

Abstract

A new soft switched PWM converter in which the main and auxiliary switches turn on at zero current and turn off at zero voltage is discussed. Two added saturable inductors are operated to satisfy soft switching as well as to reduce reverse recovery current of diodes. In this paper, new switching operations of the suggested converter are suggested to reduce the pulse width of the conduction period of the auxiliary switch. This width is about 1/20 of the main switch for half duty ratio of 250 kHz operation. The above characteristics are verified by experimental results for a 250 kHz operation

Keywords

PWM power convertors; inductors; losses; switching circuits; 250 kHz; auxiliary switch; minimized conduction loss; pulse width reduction; reverse recovery current reduction; saturable inductors; soft switched PWM converter; zero current switching; zero voltage switching; Communication switching; Diodes; Frequency conversion; Inductors; Pulse width modulation; Pulse width modulation converters; Space vector pulse width modulation; Switches; Switching converters; 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.1998.703426

Filename

703426