工业电子中的一个极为简单的温度控制器电路

Notes:Using a thermistor in the position shown makes a heat activated sensor. A change in temperature willalter the output of the opamp and energize the relay and light the LED. Swapping the position of thethermistor and 47k resistor makes a cold or frost alarm. 〖文章转载或出处〗≡中国电子技术信息网