Thermostat Switch For Automotive Electric Fans Circuit

  
The circuit, is based on a commercial temperature sensor (TS6178) and an MC3334P ignition chip, When the radiator temperature increases, the sensor pulls the base of Q2 low via Ql, which is wired as a diode. Q2`s collector thus goes high and triggers IC1,
Thermostat Switch For Automotive Electric Fans Circuit - schematic

which switches its pin 7 output high and turns on the fan motor via Q3.




Leave Comment

characters left:

New Circuits

.