This paper presents the analysis and designs of a buck-boost constant frequency zero voltage switching quasi-resonant converter (CF-ZVS-QRC) with low conduction and switching losses for aerospace applications. The converter topology presented here employs an additional auxiliary switch, to provide inductor freewheeling. This in turn optimizes the filter components. Simulation results are presented to validate the analysis. To increase the power packing density, a simple control method using an analog resonant controller UC3861 is used to regulate the output voltage of the converter against load variations and supply disturbances. The performance of the controller is verified by developing a prototype model of the converter and experimental results are presented. The results reveal the superiority of using a single dedicated IC for voltage regulation. Also, it is observed that the converter provides maximum efficiency of 93% at rated load.


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    Titel :

    Design and implementation of CF-ZVS-QRC using analog resonant controller UC3861


    Beteiligte:
    Arulselvi, S. (Autor:in) / Uma, G. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2007


    Format / Umfang :

    19 Seiten, 15 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




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