Heat Sensor Circuit Based On LM741

This is a design circuit of the Heat Sensor Circuit Diagram. This circuit based on the LM741 IC. This is the figure of the circuit;

 

Features: temperature is almost simple sensor data subsequently amplified by Op-Amp 741, NTC thermistor as a sensor, automatically fan, thermal sensor. Component: IC, Resistor, Transistor, Relay, Diode, Transformer.