A method for regulating a brightness of a luminous unit includes regulating the luminous unit by a pulse width modulator which provides an electric current having a predefined current value Y at a start time t0; modulating the electric current to a predefined brightness value at the start time t0 with a frequency of switching pulses that is chosen depending on a predefined brightness value; and progressively reducing the current value of respective switching pulses of the pulse-width-modulated electric current to a current value Y′ proceeding from a start time t0 until a target time t1. The current value Y′ is chosen in such a way that the luminous unit is luminous with the predefined brightness value upon a permanent supply with an electric current corresponding to the current value Y′. The respective switching pulses of the electric current are lengthened in their duration until a continuous electric current arises.


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    Title :

    BEAT COMPENSATION WITH AUTOMATIC HEADLIGHT SETTING


    Contributors:

    Publication date :

    2017-10-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / H05B ELECTRIC HEATING , Elektrische Heizung



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