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.


    Access

    Download


    Export, share and cite



    Title :

    LED LED TRAFFIC LIGHT HAVING A DIMMING CONTROL FUNCTION


    Additional title:

    조광 제어 기능이 구비된 LED 신호등


    Publication date :

    2018-08-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

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



    LED LED TRAFFIC LIGHT HAVING A DIMMING CONTROL FUNCTION

    SUAL DONG YUAL / CHOI HYUN SEOK / KIM YOUN SOON | European Patent Office | 2018

    Free access

    SMART WINDOW HAVING DIMMING FUNCTION

    KONG NAK KYOUNG / PARK JONG MIN / LEE KI HONG et al. | European Patent Office | 2018

    Free access

    VEHICLE INTERIOR MATERIAL HAVING DIMMING FUNCTION

    TOIDA TOSHIKI | European Patent Office | 2017

    Free access

    DIMMING CONTROL DEVICE, DIMMING SYSTEM, DIMMING CONTROL METHOD AND CONTROL PROGRAM

    KANDA TAKAHIRO | European Patent Office | 2020

    Free access

    DIMMING GLASS CONTROL DEVICE AND DIMMING CONTROL SYSTEM

    KATSUMATA KENICHI / GOTO JUN | European Patent Office | 2023

    Free access