Title :
An improved zero voltage switching flyback converter topology
Author :
Xi, Yan ; Jain, Praveen K. ; Joos, Geza ; Fei Liu, Yan
Author_Institution :
Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que., Canada
Abstract :
An improved zero voltage switching flyback converter topology is presented in this paper. This converter employs an auxiliary circuit that provides ZVS for both the main and auxiliary and it permits the operation of the converter at very high frequencies. Operating principle, steady state analysis, and design procedure for the auxiliary circuit of the proposed converter, are given. A 50 W, 260 kHz prototype converter is built to verify the performance. Experiments of the proposed converter show an improvement of about 2% in the overall efficiency as compared to the previous ZVS flyback converter
Keywords :
DC-DC power convertors; switching circuits; 260 kHz; 50 W; ZVS flyback converter; auxiliary circuit; converter operation; design procedure; flyback converter topology; operating principle; steady state analysis; very high frequencies; zero voltage switching; Capacitors; Circuit topology; Diodes; Performance analysis; Resonance; Steady-state; Switches; Switching converters; Zero current switching; Zero voltage switching;
Conference_Titel :
Power Electronics Specialists Conference, 1998. PESC 98 Record. 29th Annual IEEE
Conference_Location :
Fukuoka
Print_ISBN :
0-7803-4489-8
DOI :
10.1109/PESC.1998.703113
