The paper concerns a battery charger that has been developed for use in a battery powered electric road vehicle. The object is to charge the 144 V traction battery directly from the 220 V supply by drawing sinusoidal current at the input, to obtain, a high efficiency and to have transformer isolation from the supply. To achieve this, the rectified 220 V supply is chopped up to 500 V by a DC to DC convertor and trasnformed to the necessary voltage for battery charging by using a high-frequency self-oscillating inverter with magnetic feedback. The rectified output of the inverter charges the battery. The step-up chopper controls the transmitted power to the battery and ensures a sinusoidal line current. A detailed description of the power circuit is given and the capabilities of the complete system are proved by extensive measurements.


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    Title :

    High-efficiency on-board battery charger with transformer isolation, sinusoidal input current and maximum power factor


    Additional title:

    Leistungsstarkes bordinternes Batterieladegeraet mit Trenntransformator und sinusfoermigem Eingangsstrom


    Contributors:
    Bendien, J.C. (author) / Fregien, G. (author) / Wyk, J.D. van (author)


    Publication date :

    1986


    Size :

    8 Seiten, 16 Bilder, 17 Quellen



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English





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