temperature control circuit 555 ic


Posted on Feb 4, 2014

A Thermistor is used in the circuit for sensing the heat and two 5K variable resistors are used to adjust the circuit to activate the relay on the desired temperature. The purpose of using the 1N4007 diode across the relay is to limit the back EMF of the relay coil. The circuit can be operated with a 12 volt battery or power supply but you can als


temperature control circuit 555 ic
Click here to download the full size of the above Circuit.

o operate it with 6 volt battery or power supply but make sure to use a 6 volt relay also.




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