Automatic fan controller

Automatic fan controller: 

This is a simple temperature controller circuit diagram. here used PTC C831 to control the room temperature.  this PTC works as a resistor. PTC resistor depends on temperature. this PTC is used in this automatic fan controller.

Automatic fan controller

Negative Temperature Coefficient (NTC) thermistors have less resistance at higher temperatures.

 

 

Build a Transformer or construct the transformerhome theater circuit diagram 5.1

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