The present invention relates to an LED fail safety apparatus for a vehicle, which includes: a temperature compensation voltage input part for inputting a temperature compensation voltage according to the temperature of a light emitting diode (LED) module; a slope adjustment voltage input part for inputting a slope adjustment voltage to determine a current slope of the LED module; a first differentiator for outputting a first output voltage by amplifying a difference component between the temperature compensation voltage and the slope adjustment voltage; a luminance determining voltage input part for inputting a luminance determining voltage to set a reference current corresponding to luminance of the LED module; a second differentiator for outputting a second output voltage by amplifying a difference component between the first output voltage and the luminance determining voltage; and a voltage limiting part for applying a final output voltage to the LED module by limiting the second output voltage to set a current minimum value of the LED module. The objective of the present invention is to provide the LED fail safety apparatus for a vehicle capable of satisfying endurance ability as to an LED of an external lamp for a vehicle and preventing degradation and burning due to a high temperature.

    본 발명은 LED(Light Emitting Module) 모듈의 온도에 따른 온도보상전압을 입력하는 온도보상전압 입력부, LED 모듈의 전류 기울기를 결정하기 위한 기울기조정전압을 입력하는 기울기조정전압 입력부, 온도보상전압과 기울기조정전압의 차 성분을 증폭하여 제1 출력전압을 출력하는 제1 차분기, LED 모듈의 휘도에 대응되는 기준전류를 설정하기 위한 휘도결정전압을 입력하는 휘도결정전압 입력부, 제1 출력전압과 상기 휘도결정전압의 차 성분을 증폭하여 제2 출력전압을 출력하는 제2 차분기 및 LED 모듈의 전류 최소값을 설정하기 위해 제2 출력전압을 제한하여 최종 출력전압을 LED 제어모듈로 인가하는 전압 제한부를 포함하는 것을 특징으로 한다.


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    Titel :

    FAIL SAFE APPARATUS OF LED FOR VEHICLE


    Weitere Titelangaben:

    차량용 LED 고장 보호 장치


    Beteiligte:
    BAE IN SEONG (Autor:in)

    Erscheinungsdatum :

    2016-03-11


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Koreanisch


    Klassifikation :

    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



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