The utility model discloses a communication control circuit, control circuit comprising a temperature measuring bridge circuit, a voltage comparator, a control circuit, the input power output terminal of the temperature measuring bridge circuit and voltage comparator connected with the control circuit, the output end of an input end of the voltage comparator is connected, change the temperature measuring bridge the way of measuring temperature, the temperature changes will change into electrical signal output to the voltage comparator for processing, the voltage comparator outputs the signal to the control circuit, the control circuit and control circuit of the next level off, using fewer components, the market is relatively easy to obtain, has the advantages of simple structure, low price. The use of negative temperature coefficient thermistor, photoelectric coupler and thyristor, has the advantages of high sensitivity, no contact, the advantages of long life, suitable for all kinds of environment, so The utility model has higher use value.
【技术实现步骤摘要】
【技术保护点】
交流温控电路，其特征是：所述温控电路包括测温桥路、电压比较器、控制电路，所述测温桥路的输出端与电压比较器的输入端电连接，所述电压比较器的输出端与控制电路的输入端电连接，所述测温桥路测量温度的变化，将温度的变化转变为电信号，输出至电压比较器进行处理，电压比较器将信号输出至控制电路，所述控制电路控制下一级电路的通断。
【技术特征摘要】
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