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Hybridized off-line 2-MHz zero-current-switched quasi-resonant converter

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4 Author(s)
Hopkins, Douglas C. ; Dept. of Electr. Eng., Auburn Univ., AL, USA ; Jovanovic, M.M. ; Lee, F.C.Y. ; Stephenson, F.

Thick-film hybrid technology is used to develop a half-bridge, half-wave, zero-current-switched quasi-resonant converter for 300 V DC offline application. With a conversion frequency of 2 MHz the converter delivers 80 W at 78% efficiency with a power density, excluding heat sink, of 21 W/in3. The operation and detailed electrical and hybrid design of the circuit are described. Also described is a 2 MHz hybridized gate drive

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Power Electronics, IEEE Transactions on  (Volume:4 ,  Issue: 1 )