why particularly a stepper motor why not a DC motor?
Is a motor a generator?
Absolutely, a motor can be a generator and in the hand a generator is a motor.
Somebody may try out to build your own Wind Turbine for hobbies or so. You may experience this, you broke your old computer printer or wherever you can find out a stepper motor. Why was that? Because you need a generator first if you follow the below steps:
1. A generator
2. Blades
3. A mounting that keeps it turned into the wind
4 .A tower to get it up into the wind
5. Batteries and an electronic control system
Another fact shows that a motor is a generator anyway. Do you have an experience wire the UIrobot stepper motor driver to your stepper motor? How do you know your wiring is correct? An easy and interesting way to find it out is turning the shaft of your stepper motor, fast and faster, if the LED light of the stepper motor driver flashing that means your wiring is wonderful, if not there is problem there. I don’t exactly know it’s a universal method or not, but it’s worked on the UIM stepper motor controller.
Last edited by Al_The_Man; 05-25-2010 at 10:08 AM. Reason: spam link editied out
why particularly a stepper motor why not a DC motor?
Here's an interesting link about using steppers as generators.
I was looking for an article I once found about using car/truck radiator fan motors (a lot of new ones are steppers) along with their frames, as wind generators on rooftops in N.Y.C., but I couldn't find it.
This one may eventually lead to it though:
http://www.reuk.co.uk/Stepper-Motor-Basics.htm
First off... the motor will generate AC and needs to be rectified. With a bipolar you probably have 4 wires (2 coils) so you would use 2 full wave bridge rectifiers, one for each coil. Connect the DC outputs of the bridges together and put a capacitor across that. Then you have a source of DC (when the wind is blowing) to run to a battery charger circuit to charge your battery.
One of the first links (Stepper Motor Wind Turbines) on the page I posted below gives some basics about voltage for charging batteries, as well as some circuits like bridge rectifiers & voltage doublers.