The present invention relates to a light source driving apparatus. The light source driving apparatus includes: a light source part in which a plurality of light source groups are connected in series; a power supply part supplying power to the light source part; a switching part forming a bypass for at least one of the light source groups; a failure signal generating part generating failure information; and a control part controlling the operation of the switching part. The control part controls the operation of the switching part to bypass at least one of the light source groups. Therefore, even if a failure occurs in a sub light source connected in series, a main light source can operate normally.
본 발명은 광원구동장치에 관한 것으로, 복수의 광원그룹이 직렬로 연결되는 광원부, 광원부에 전력을 공급하는 전원부, 광원그룹 중 하나 이상의 광원그룹에 대한 바이패스를 형성하는 스위칭부, 고장 정보를 생성하는 고장신호생성부, 및 스위칭부의 동작을 제어하는 제어부를 포함하고, 제어부는 광원 그룹 중 하나 이상의 광원그룹을 바이패스시키도록 스위칭부의 동작을 제어하는 것을 특징으로 함으로써 직렬로 연결된 보조광원에 고장이 발생하더라도 주광원은 정상적으로 동작하도록 할 수 있다.
Light driving apparatus for fail safety of sub light source and method thereof
보조기능광원 고장에 대응가능한 광원구동장치
2019-07-09
Patent
Electronic Resource
Korean
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 |
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