This paper presents a simplified envelope model to study the dynamics of a phase-controlled resonant converter suitable to drive light emitting diode (LED) lamps. The approximate closed form of the transfer function is obtained from the proposed reduced-order model. The fast dynamics of the resonant converter allows us implementing a pulsed current source with active control of the on-time-current free of instabilities and flicker effect with a type II or integral-single-lead controller. A 120W prototype intended for street lighting applications has been built to validate the study. ; This work is sponsored by the Spanish Ministry of Science and the EU through the project CICYT-FEDER- TEC2011- 23612: “Power conversion with new digital control techniques and soft-saturation magnetic cores”.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Pulsed current source with active control of the on-time current for LED lamp driver applications



    Erscheinungsdatum :

    2014-01-01


    Anmerkungen:

    40th Annual Conference of the IEEE Industrial Electronics Society (IECON 2014), Dallas, 2014, 1727-1732



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Klassifikation :

    DDC:    629



    High current source driver for automotive applications

    Marchio,F. Menniti,P. / Ferrari,P. / SGS Microelettronica,IT | Kraftfahrwesen | 1985


    High current source driver for automotive applications

    Marchio, F. / Menniti, P. / Ferrari, P. | Tema Archiv | 1985


    PFC Control for LED Lamp Driver Using Sensorless Predictive Current Controller

    Zaky, Mohamed S. / Azazi, Haitham Z. / Touti, Ezzeddine | BASE | 2018

    Freier Zugriff


    Differential current driver

    Kopp, G. F. | NTRS | 1977