A Three-Level PWM Resonant Converter with Wide ZVS Range employing Hybrid Structure

Author

Cho, Je-Hyung ; Park, Ki-Bum ; Moon, Gun-Woo ; Youn, Myung-Joong

Author_Institution

Div. of Electr. Eng., KAIST, Daejeon

fYear

2009

fDate

15-19 Feb. 2009

Firstpage

420

Lastpage

425

Abstract

A hybrid structure three-level resonant converter suitable for wide input and load variation is proposed. A hybrid combination of a three-level converter controlled by phase-shift modulation and a half-bridge converter is presented. Since the voltage of each switch is one half of the input voltage, it has advantages of the choice and characteristics of switches. The ZVS operation of the converter is achieved by using the magnetizing current of the transformer. To verify the theoretical analysis, experimental results of the proposed converter are presented.

Keywords

PWM power convertors; resonant power convertors; switching convertors; transformers; zero voltage switching; ZVS converter; half-bridge converter; hybrid structure; phase-shift modulation; three-level PWM resonant converter; transformer magnetizing current; Capacitors; Phase modulation; Pulse width modulation; Pulse width modulation converters; Resonance; Stress; Switches; Switching converters; Zero current switching; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 2009. APEC 2009. Twenty-Fourth Annual IEEE

Conference_Location

Washington, DC

ISSN

1048-2334

Print_ISBN

978-1-4244-2811-3

Electronic_ISBN

1048-2334

Type

conf

DOI

10.1109/APEC.2009.4802692

Filename

4802692