Simple Thermostat Circuit Using Transistors

The electronic thermostat explained here can be used to control the room temperature by appropriately switching (turning on and off) a heating device. By: R.K. Singh Operational details of electronic thermostat The circuit employs a thermistor NTC (negative temperature coefficient) as the sensor device. – As long as the ambient temperature stays higher than the … Read more

How to Make an Automatic Refrigerator Temperature Controller Circuit

This circuit idea was requested to me by one of the keen readers of this blog Mr.Gustavo. I had published one similar circuit of an automatic refrigerator thermostat, however the circuit was intended to sense higher temperature level available at the rear side grid of refrigerators. Introduction The idea was not quite appreciated by Mr … Read more