The present invention relates to a lamp driving circuit for a vehicle. According to an embodiment of the present invention, the lamp driving circuit for a vehicle includes: a power supply part outputting power; a light emitting part connected to the power supply part and having a light emitting element emitting light by the power output from the power supply part; a first capacitor connected to the light emitting part in parallel; a switching part having a switching element; and a control part controlling a switching operation of the switching element to control flickering of the light emitting element. Accordingly, the lamp driving circuit for a vehicle can prevent momentary flickering of a lamp when ignition power is input even when a bypass capacitor is provided. Other embodiments are also possible.
본 발명은, 차량용 램프 구동회로에 관한 것이다. 본 발명의 실시예에 따른 차량용 램프 구동회로는, 전원을 출력하는 전원공급부, 전원공급부에 접속되고, 전원공급부에서 출력되는 전원에 의해 빛을 방사하는 발광소자를 구비하는 발광부, 발광부에 병렬 연결되는 제1 커패시터, 스위칭 소자를 구비하는 스위칭부 및 스위칭 소자의 스위칭 동작을 제어하여, 발광소자의 점멸을 제어하는 제어부를 포함할 수 있다. 이에 따라, 바이패스 커패시터를 구비하는 경우에도, 이그니션 전원의 입력 시, 램프의 순간적인 점멸을 방지할 수 있다. 그 외에 다양한 실시예들이 가능하다.
CIRCUIT FOR DRIVING LAMP IN VEHICLE
차량용 램프 구동회로
2021-01-27
Patent
Electronic Resource
Korean
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 / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / H05B ELECTRIC HEATING , Elektrische Heizung |
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