Circuit of power cord and signal line sharing

The utility model relates to a circuit of power cord and signal line sharing, including singlechip main control board, load, the signal output part of singlechip main control board pass through the input of signal transmission circuit connection load, the signal output part of singlechip main control board is the power end through the load of steady voltage circuit connection still. The utility model discloses a signal transmission circuit provides the signal for the load, provides the power through voltage stabilizing circuit for the load simultaneously, and the signal output part of realization regards as signal output, power output simultaneously, and power cord and signal transmission carry out the circuit design of shared line simultaneously, and the port that reduces the signal line uses. 本实用新型涉及种电源线与信号线共用的电路，包括单片机主控板、负载，所述的单片机主控板的信号输出端通过信号传输电路连接负载的输入端，单片机主控板的信号输出端还通过稳压电路连接负载的电源端。本实用新型通过信号传输电路给负载提供信号，同时通过稳压电路给负载提供电源，实现的信号输出端同时作为信号输出、电源输出，电源线与信号传输同时进行共用线路的电路设计，减少信号线路的端口使用。