Projects

speed control temperature dc fan

The R1 can be a 15K @ 20°C ,N.T.C thermistor.
The M1 can be a 12V,700mA fan motor.
The capacitor C1 must be rated 25V.
The circuit can be powered from a 12V PP3 battery or 12V DC power supply.
Assemble the circuit on a good quality PCB or common board.



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Sun, 08/09/2013 - 03:31

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