Title :
A zero voltage switching forward converter topology
Author :
Xi, Y. ; Jain, P.K. ; Joos, G. ; Jin, H.
Author_Institution :
Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que., Canada
Abstract :
A zero voltage switching forward converter topology is presented in this paper. The topology employs an auxiliary circuit. Only a few small rating components and devices are added. The merits of the proposed topology include: lossless switching independent of the input and load conditions, simple control and power circuitry, and ability to operate in either voltage or current mode control. A steady state analysis is presented and the design procedure is illustrated. A 100 W 300 kHz prototype zero voltage switching forward converter is built which shows an efficiency improvement of approximately 5% as compared to a conventional hard switching forward converter
Keywords :
electric current control; power convertors; switching circuits; voltage control; 100 W; 300 kHz; ZVS; auxiliary circuit; computer power supplies; current mode control; design procedure; efficiency improvement; hard switching forward converter; lossless switching; simple control circuitry; simple power circuitry; steady state analysis; telecommunication power supplies; voltage mode control; zero voltage switching forward converter topology; Circuit topology; Frequency; Inductors; Power supplies; Switches; Switching circuits; Switching converters; Voltage control; Zero current switching; Zero voltage switching;
Conference_Titel :
Telecommunications Energy Conference, 1997. INTELEC 97., 19th International
Conference_Location :
Melbourne, Vic.
Print_ISBN :
0-7803-3996-7
DOI :
10.1109/INTLEC.1997.645875
