The invention relates to an energy supply circuit (5) for a lighting module (4) for a motor-vehicle headlamp, wherein the lighting module (4) comprises a shunt resistor (Rsext) and at least one light source (D1, D2, Dn) that can be electrically supplied at least partially via the shunt resistor (Rsext), wherein the lighting module (4) also has at least three electrical connections (A1′, A2′, A3′), wherein a first connection (A1′) and a second connection (A2′) are provided for electrically contacting the shunt resistor (Rsext) and a third connection (A3′) is provided for electrically contacting the at least one light source (D1, D2, Dn) connected downstream, wherein the electrical connections (A1′, A2′, A3′) are designed as externally contactable connections, wherein the energy supply circuit (5) has a control unit (3) for outputting a supply current (Iv) controlled so as to be constant to the at least one light source (D1, D2, Dn) of the lighting module (4), wherein the control unit (3) has an auxiliary resistor (Rs), which is connected in parallel with the shunt resistor (Rsext).


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    Title :

    ENERGY SUPPLY CIRCUIT FOR A LIGHTING MODULE


    Contributors:
    GRAF THOMAS (author)

    Publication date :

    2018-08-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B62J Fahrrad- oder Motorradsättel oder -sitze , CYCLE SADDLES OR SEATS / H05B ELECTRIC HEATING , Elektrische Heizung / F21S Ortsfeste Leuchten , NON-PORTABLE LIGHTING DEVICES



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