본 발명은 조광 제어 기능을 갖는 LED 신호등에 관한 것으로, 교통신호 제어기로부터 수신된 AC 구동 전압을 DC 구동 전압으로 변환하는 정류부; 상기 DC 구동 전압을 정전류로 변환하여 LED 램프로 제공하는 구동 전류부; 및 조광 제어 모드 시, 상기 AC 구동 전압의 파형을 분석하여 조광 제어를 위한 조도 값을 추출하고, 상기 조도 값을 기반으로 LED 램프의 밝기를 조절하기 위한 구동 신호를 생성하는 제어부를 포함한다.

    The present invention relates to an LED traffic light having a dimming control function performed by using a phase counter method. The LED traffic light comprises: a rectifying unit for converting an AC driving voltage received from a traffic signal controller into a DC driving voltage; a driving current unit for converting the DC driving voltage into a constant current to provide the constant current to an LED lamp; and a control unit for extracting an illuminance value to control dimming by analyzing a waveform of the AC driving voltage in a dimming control mode, and generating a driving signal to adjust brightness of the LED lamp based on the illuminance value.


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    Titel :

    LED LED TRAFFIC LIGHT HAVING A DIMMING CONTROL FUNCTION


    Weitere Titelangaben:

    조광 제어 기능이 구비된 LED 신호등


    Erscheinungsdatum :

    14.08.2018


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Koreanisch


    Klassifikation :

    IPC:    H05B ELECTRIC HEATING , Elektrische Heizung / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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