Title :
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
fDate :
28 Oct-1 Nov 1991
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;
Conference_Titel :
Industrial Electronics, Control and Instrumentation, 1991. Proceedings. IECON '91., 1991 International Conference on
Conference_Location :
Kobe
Print_ISBN :
0-87942-688-8
DOI :
10.1109/IECON.1991.239359
