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    초록·키워드

    In this paper, design and control of the novel SEPIC-Flyback converter(SF converter) is developed as a possible converter for fuel cell system. This output characteristic of SF converter is similar to Buck-Boost converter in that it can step-up or step-down the voltage. With the small signal equivalent circuit modeling of SF converter, control-to-output transfer function is obtained.
    SF converter couples up the inductive type converter to capacitive type converter with one transformer, which has less ripple current than its respective one does.
    To verify the validity of the proposed converter, 500W, 100kHz converter is designed and tested. ZVS switching and active clamping are also tested in practice.

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      UCI(KEPA) : I410-ECN-0101-2009-565-015546557