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Thursday, January 21, 2010

Temperature controlled fan Circuit diagram


This is temperature controlled fan circuit.When you use this circuit you don't want to turn the switches when the heat goes up.It is controlled automatically.





Note

# R1 =thermistor (15K @ 20°C ,N.T.C thermistor )

# C1 must be rated 25V.

# This circuit is operated with 12V power supply

6 comments:

Habibur Rahman said...

Hi Dear


I am wait for your Response !
a wireless Circuit Diagram !

good wishes

Joe said...
This comment has been removed by the author.
Joe said...
This comment has been removed by the author.
Joe said...

what is the arrow symbol below the r5 and r7 resistors denote?
Is It a variable resistor or an adjustable resistor?
what is the operation it would do? reply us soon.........

Joe said...

how will the thermistor look like and what is the operation it does?(resistor r1)

Zam said...

Joe it is a variable resistor

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