Hand crank generator battery charger circuit

[mawad]

Hello,
I want to use a DC permanent motor as a generator in order to use it to charge a battery. This generator will be rotated by hand. The speed is varying as it rotates by hand. I would like to know what is the circuit that I could use it to charge 12 V chargeable batter?
Best wishes,

 

[berkeman]

Hello,
I want to use a DC permanent motor as a generator in order to use it to charge a battery. This generator will be rotated by hand. The speed is varying as it rotates by hand. I would like to know what is the circuit that I could use it to charge 12 V chargeable batter?
Best wishes,

You would do basically the same thing that is done with car alternator circuits. You would follow the generator output with a rectifier and regulator.

Here is more info:

http://auto.howstuffworks.com/alternator.htm

.