The invention discloses a signal transmission circuit. The signal transmission circuit comprises an output circuit, a switching circuit, a voltage detection circuit and a control circuit, the output circuit comprises a signal providing end, a first load end and a second load end; the output circuit is used for outputting an output signal to the first load end and the second load end according to an input signal received by the signal providing end; the switching circuit and the load are connected in parallel between the first load end and the second load end; the voltage detection circuit is electrically connected with the first load end and the second load end. The voltage detection circuit is used for collecting an output signal and outputting a transmission control signal according to the output signal; the control circuit is electrically connected with the voltage detection circuit and the switching circuit. The control circuit is used for controlling the switching circuit to be switched on or switched off according to the transmission control signal. According to the technical scheme, when the voltage detection circuit detects that the output signal is abnormal, the control circuit controls the switching circuit to be switched on, and the safety of the signal transmission circuit is improved.

    本发明公开了一种信号传输电路,该信号传输电路包括输出电路、开关电路、电压检测电路和控制电路;输出电路包括信号提供端、第一负载端和第二负载端;输出电路用于根据信号提供端接收的输入信号,输出输出信号至第一负载端和第二负载端;开关电路与负载并联连接于第一负载端和第二负载端之间;电压检测电路分别与第一负载端和第二负载端电连接;电压检测电路用于采集输出信号,并根据输出信号,输出传输控制信号;控制电路分别与电压检测电路和开关电路电连接;控制电路用于根据传输控制信号,控制开关电路导通或断开。本发明的技术方案可以在电压检测电路检测到输出信号异常时,通过控制电路控制开关电路导通,提高信号传输电路的安全性。


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    Title :

    Signal transmission circuit


    Additional title:

    一种信号传输电路


    Contributors:
    QIU ZHAOYANG (author) / LI YANFENG (author)

    Publication date :

    2024-04-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC



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