Title :
A zero voltage switching flyback converter topology
Author :
Xi, Youhao ; Jain, Praveen K. ; Joós, Géza
Author_Institution :
Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que., Canada
Abstract :
A zero voltage switching flyback power converter topology employing an auxiliary circuit is presented in this paper. The proposed power converter has lossless switching (whatever the line and load conditions), few components and can be operated either in voltage or current mode control. A detailed analysis of the circuit is presented and the design procedure is illustrated. A 50 W 200 kHz prototype zero voltage switching flyback power converter is built which shows an efficiency improvement of approximately 7% as compared to a conventional hard switching flyback power converter
Keywords :
DC-DC power convertors; network topology; switching circuits; 200 kHz; 50 W; auxiliary circuit; circuit design procedure; current mode control; efficiency improvement; flyback power converter topology; lossless switching; soft switching; voltage mode control; zero voltage switching; Circuit analysis; Circuit topology; Frequency; Power supplies; Switches; Switching circuits; Switching converters; Voltage control; Zero current switching; Zero voltage switching;
Conference_Titel :
Power Electronics Specialists Conference, 1997. PESC '97 Record., 28th Annual IEEE
Conference_Location :
St. Louis, MO
Print_ISBN :
0-7803-3840-5
DOI :
10.1109/PESC.1997.616838
