An automotive dual-voltage power-net, which requires the application of an asymmetrically cascaded non-inverting boost-buck converter, was introduced. The voltage and current stress for the components of the power stage was investigated. A high-side driver supply circuit for static and PWM-modulated gate driving was proposed for the cascaded boost-buck converter. Several application specific aspects, which are important for the controller design, were introduced. The performance of the developed prototype converter during static and dynamic energy transfer from LV-PN to HV-PN was investigated experimentally. Despite the given difficult operating conditions, like wide voltage ranges, high currents and disturbances, robust converter behaviour with very high efficiency was achieved.


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    Title :

    Cascaded boost-buck DC/DC-converter for dual-voltage automotive power-nets with overlapping voltage ranges


    Contributors:
    Polenov, D. (author) / Reiter, T. (author) / Pröbstle, H. (author) / König, S. (author) / Lutz, J. (author)


    Publication date :

    2007


    Size :

    6 Seiten, 6 Bilder, 14 Quellen


    Type of media :

    Conference paper


    Type of material :

    Storage medium


    Language :

    English




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