The invention discloses a control circuit of an LED signal machine and the LED signal machine. The control circuit comprises a closed-loop control circuit composed of an input power supply, a filament relay, a load resistor, a photosensitive control module and an LED array. Wherein in the closed-loop control circuit, the input power supply is sequentially connected with the filament relay, the photosensitive control module and the LED array in series, and the load resistor is connected with the LED array in parallel; the photosensitive control module is a parallel circuit composed of a capacitor and a photosensitive tube. The switch-on and switch-off of the photosensitive tube are controlled by the luminous intensity of the LED array, so that the problems of complex detection mode and high cost of the conventional signal machine detection method aiming at the fault mode that the input power supply is normally supplied, but the luminous intensity is reduced or even the light is not lighted are solved.

    本发明公开了一种LED信号机的控制电路和LED信号机,该控制电路包括:输入电源、灯丝继电器、负载电阻、光敏控制模块和LED阵列构成的闭环控制电路;其中,在所述闭环控制电路中,所述输入电源依次与所述灯丝继电器、所述光敏控制模块以及所述LED阵列串联,且所述负载电阻与所述LED阵列并联;所述光敏控制模块是由电容和光敏管构成的并联电路;所述光敏管的导通与关断受所述LED阵列的发光强度控制,解决现有信号机检测方法针对输入电源供电正常,但发光强度下降甚至不亮的故障模式的检测方式复杂以及成本高的问题。


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    Titel :

    Control circuit of LED signal machine and LED signal machine


    Weitere Titelangaben:

    一种LED信号机的控制电路和LED信号机


    Beteiligte:
    QIU ZHAOYANG (Autor:in) / LI YANFENG (Autor:in) / SUN CHAO (Autor:in) / ZHANG PANPAN (Autor:in)

    Erscheinungsdatum :

    2023-05-30


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    H05B ELECTRIC HEATING , Elektrische Heizung / B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC



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