An integral cycle mode control of series resonant converter

Author

Joung, G.B. ; Rim, C.T. ; Cho, G.-H.

Author_Institution

Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Seoul, South Korea

fYear

1988

fDate

11-14 April 1988

Firstpage

575

Abstract

A novel control method is proposed for a series resonant converter (SRC) that switches synchronously with the zero-crossing points of the resonant current. Output voltage is controlled by proper selection of the switch modes, which is achieved by varying the duty ratio of the powering and free resonant modes. Each switch mode is analyzed and the DC transfer function obtained. Simulated and experimental results agree well. Advantages such as low current switching stress, low switching loss, low electromagnetic interference (EMI), high input power factor, and wide control range are obtained. Some of these characteristics are verified experimentally.<>

Keywords

poles and zeros; power convertors; transfer functions; DC transfer function; EMI; control method; current switching stress; duty ratio; electromagnetic interference; integral cycle mode control; power convertors; power factor; resonant current; series resonant converter; switch modes; switching loss; zero-crossing points; Frequency domain analysis; Frequency synchronization; RLC circuits; Resonance; Resonant frequency; Stress control; Switches; Switching converters; Switching frequency; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1988. PESC '88 Record., 19th Annual IEEE

Conference_Location

Kyoto, Japan

Type

conf

DOI

10.1109/PESC.1988.18183

Filename

18183