THERMOSTAT_SWITCH_FOR_AUTOMOTIVE_ELECTRIC_FANS

Published:2009/6/14 22:25:00 Author:May | From:SeekIC

The circuit is based on a commercial temperature sensor(TS6178) and an MC3334P ignition chip. When the radiator temperature increaser,the sensor pulls the base of Q2 low via Q1, which is wired as a diode.Q2's collector thus goes high and riggers IC1,which switches its pin 7 output high and turns on the fan motor via Q3.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Control_Circuit/Switch_Control/THERMOSTAT_SWITCH_FOR_AUTOMOTIVE_ELECTRIC_FANS.html

Print this Page | Comments | Reading(3)