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Fan Nr. 1

Building a fan out of an old HDD

jj
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This if my Nr. 1 Fan.
Its powerfull and gets supplied by 3 LiIon (3S) cells. One 20 A ESC (Electronic Speed Control) gets a PWM signal from a µC, adjusted by a potentiometer.
The 3 Cells are connected to a 3-Cell-Charging circuit.

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