Analysis and design of a modified series resonant converter

Author

Bhat, Ashoka K S

Author_Institution

Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada

Volume

8

Issue

4

fYear

1993

fDate

10/1/1993 12:00:00 AM

Firstpage

423

Lastpage

430

Abstract

A modified series resonant converter (SRC) (also referred to as the LCL-type SRC) which overcomes the problems of the standard series resonant converter is presented. A state-space approach is used for the analysis. Analysis shows that the converter enters into three different modes. Converter gain and other component stresses are plotted with variation in the load current. Detailed experimental results obtained from a 500 W MOSFET converter are presented to verify the theory. With a proper selection of inductor ratio, only a narrow variation in switching frequency is required to regulate the output voltage for wide variation in the load current. It is shown that, by placing the parallel inductor on the secondary side, the parasitics of the high-frequency transformer can be used profitably

Keywords

insulated gate field effect transistors; power convertors; switching; 500 W; LCL-type SRC; MOSFET converter; high-frequency transformer; inductor ratio; load current variation; modified series resonant converter; parallel inductor; state-space approach; Filters; Hafnium; Inductance; Inductors; Magnetic analysis; Magnetic resonance; Magnetic separation; Reactive power; Switching converters; Switching frequency;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/63.261012

Filename

261012