A light source driving apparatus according to an embodiment includes a light source part; a constant current driving part connected to the light source part, including a first switching device, and supplying a constant current to the light source part according to a switching operation of the first switching device; a driving control part outputting a switching signal for controlling the first switching device consisting the constant current driving part; an abnormal state sensing part sensing an abnormal state of the light source part and an abnormal state of the driving control part, and outputting a control signal according to a result of the sensing; and a protective circuit part selectively operating based on the control signal output from the abnormal state sensing part to stop an operation of the constant current driving part and an operation of the light source part.
LIGHT SOURCE DRIVING APPARATUS
LICHTQUELLENANTRIEBSVORRICHTUNG
APPAREIL D'ENTRAÎNEMENT DE SOURCE DE LUMIÈRE
2024-10-30
Patent
Electronic Resource
English
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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