A Boundary-Mode Forward-Flyback Converter With an Efficient Active LC Snubber Circuit

    Authors

    L. Chen; H. B. Hu; Q. Zhang; A. Amirahmadi;I. Batarseh

    Comments

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    Abbreviated Journal Title

    IEEE Trans. Power Electron.

    Keywords

    Boundary mode; forward-flyback; LC circuit; DC-DC CONVERTER; COUPLED-INDUCTOR; BOOST CONVERTER; CLAMP; TOPOLOGIES; Engineering, Electrical & Electronic

    Abstract

    This paper describes a boundary-mode forward-flyback converter (BMFFC) with zero-voltage switching that is able to process power efficiently. The theoretical analysis and operating principle of the BMFFC are presented in detail. A nondissipative LC snubber that recycles energy to the input source is employed in order to suppress the voltage spike caused by the leakage inductance of the transformer. The relatively large snubber capacitor also significantly reduces turn-off loss. Following a detailed design procedure, a 200 W prototype with a 25-50 V dc input and 230 V dc output was constructed and tested in order to evaluate the performance of the BMFFC.

    Journal Title

    Ieee Transactions on Power Electronics

    Volume

    29

    Issue/Number

    6

    Publication Date

    1-1-2014

    Document Type

    Article

    Language

    English

    First Page

    2944

    Last Page

    2958

    WOS Identifier

    WOS:000331554000032

    ISSN

    0885-8993

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