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
at

7 comments:

  1. Habibur RahmanJanuary 23, 2010 at 12:42 AM

    Hi Dear


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

    good wishes

    ReplyDelete
  2. JoeMay 19, 2014 at 9:16 PM

    This comment has been removed by the author.

    ReplyDelete
  3. JoeMay 19, 2014 at 9:18 PM

    This comment has been removed by the author.

    ReplyDelete
  4. JoeMay 20, 2014 at 4:08 AM

    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.........

    ReplyDelete
  5. JoeMay 20, 2014 at 4:11 AM

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

    ReplyDelete
  6. ZamMay 26, 2014 at 11:38 AM

    Joe it is a variable resistor

    ReplyDelete
  7. AmarJuly 3, 2020 at 6:49 AM

    Sir can you give me the circuit diagram of 5min.autoon and autooff 5 to 10 minutes

    ReplyDelete