How can I make a battery charger using a small computer fan spinning backwards? A coin battery with wind.? - small computer fans
I try to use the wind to take a small LED torch battery.
Thursday, December 31, 2009
Small Computer Fans How Can I Make A Battery Charger Using A Small Computer Fan Spinning Backwards? A Coin Battery With Wind.?
1 comment:
very difficult
the blower motor is not the computer as a DC motor
This is a kind of stepping motor
The circuit, which sends electrical pulses to turn on four (or three) number of windings
So if you are fan coils restored some of the circuits, but the input voltage cables to prevent
However, you can directly feed the coils
but it is broken
and must use a portion of the correction circuit in order to implement the AC coil voltage continues to charge the batteries
In addition, the fan is not designed to act like a windmill is the work (in the area of the blade is much less)
better than a fan blade and attach it to a small DC motor (you can have a small gearbox)
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