A driver circuit for a light-emitting diode arrangement has a supply terminal for connecting a voltage source. A boost converter inductance connects the supply terminal to a common circuit node. A switching unit connects the circuit node to ground depending on a switching signal. A rectifying unit connects the circuit node to an anode terminal for the light-emitting diode arrangement by way of a circuit branch to which a terminal of a storage capacitance and a terminal of an RC element are connected. A cathode terminal for the cathode side of the light-emitting diode arrangement is electrically connected to the circuit node. A buck converter inductance is connected in each case between the rectifying unit and the anode terminal and/or between the cathode terminal and the circuit node.
DRIVER CIRCUIT FOR A LIGHT-EMITTING DIODE ARRANGEMENT, LIGHTING APPARATUS AND MOTOR VEHICLE
2019-02-14
Patent
Electronic Resource
English
IPC: | H05B ELECTRIC HEATING , Elektrische Heizung / 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 / H01L Halbleiterbauelemente , SEMICONDUCTOR DEVICES |
Driver circuit for a light-emitting diode arrangement, lighting apparatus and motor vehicle
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