Title :
Electronic step down (220/110 V) transformer using a new quantum series resonant converter
Author :
Huy, D.-Y. ; Cho, Gyu-Hyeong
Author_Institution :
Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea
fDate :
10/1/1993 12:00:00 AM
Abstract :
A novel quantum series resonant converter (QSRC) topology for a pure sinewave 60 Hz 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 slight modification. The QSRC is thought to be suitable for such a system with fixed voltage conversion ratio. The proposed converter is applied to an electronic 220/110 V transformer. Detailed analyses and experimental results for 1 kVA are presented
Keywords :
choppers (circuits); power convertors; power electronics; power transformers; 1 kVA; 110 V; 220 V; 60 Hz; bidirectional power flow; bidirectional switches; electronic step down transformer; fixed voltage conversion ratio; high switching frequency; low switching loss; pure sinewave AC chopper; quantum series resonant converter; zero current switching mode; zero voltage switching mode; Choppers; Iron; Propagation losses; Resonance; Switches; Switching converters; Switching frequency; Transformer cores; Zero current switching; Zero voltage switching;
Journal_Title :
Power Electronics, IEEE Transactions on
