It is presented a novel electronic ballast to drive dual automotive high-intensity-discharging (HID) lamps. Two flyback converters are used to provide the lamp power from the warm-up period through the steady state. A common-leg bridge inverter is used to drive the two lamps with a low- frequency square-waveform operation. The lamps are driven with negative lamp voltage to increase lamp life. Also, the electronic ballast is controlled by a micro-control unit (MCU). The start-up sequences and constant lamp power control of the lamps are achieved by a digital signal processor (DSP). The characteristics of a lamp during the transition and steady-state periods are described. Finally, a laboratory prototype of a 35W D1-type automotive electronic ballast has been implemented to verify the feasibility of this approach.


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    Titel :

    Design and implementation of a DSP-based electronic ballast for dual xenon headlight lamps


    Weitere Titelangaben:

    Entwurf und Implentierung eines elektronischen Vorschaltgeräts mit DSP für Dual-Xenon-Scheinwerfer


    Beteiligte:
    Hung, S.H. (Autor:in) / Liang, T.J. (Autor:in) / Cheng, C.A. (Autor:in) / Huang, C.M. (Autor:in) / Chen, J.F. (Autor:in) / Lin, R.L. (Autor:in)


    Erscheinungsdatum :

    2008


    Format / Umfang :

    7 Seiten, 19 Bilder, 1 Tabelle, 5 Quellen


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Datenträger


    Sprache :

    Englisch




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