Electronic step down (220 V/110 V) transformer using a new quantum series resonant converter

Author

Huh, Dong Y. ; Cho, Gyu H.

Author_Institution

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

fYear

1991

fDate

28 Oct-1 Nov 1991

Firstpage

347

Abstract

A novel quantum series resonant converter (QSRC) topology for an AC chopper is proposed. It has three bidirectional switches and operates at high switching frequency with low switching loss. Bidirectional power flow is possible, and the switches can operate in either zero current switching (ZCS) mode or zero voltage switching (ZVS) mode by a slight modification. QSRC is thought to be suitable for such a system with a fixed voltage conversion ratio. The proposed converter is applied to an electronic 220 V/110 V transformer. Detailed analyses and experimental results for 1 kVA are presented

Keywords

choppers (circuits); power convertors; switching circuits; transformers; 1 kVA; 110 V; 220 V; AC chopper; bidirectional power flow; bidirectional switches; electronic transformer; fixed voltage conversion ratio; high switching frequency; low switching loss; quantum series resonant converter; zero current switching; zero voltage switching; Capacitors; Choppers; Equations; Inductors; Resonance; Switches; Switching circuits; Switching converters; Switching frequency; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, Control and Instrumentation, 1991. Proceedings. IECON '91., 1991 International Conference on

Conference_Location

Kobe

Print_ISBN

0-87942-688-8

Type

conf

DOI

10.1109/IECON.1991.239359

Filename

239359