Hey,

I was wondering if anyone could explain how a 4-phase stepper motor works, only in a few sentences. I've trouble understanding the 4-step binary sequence which drives the motor.

Thanks.

 

Have a look here:

http://www.allaboutcircuits.com/vol_2/chpt_13/5.html

or google 4-phase stepper motor

 

Thanks for the link mik, I'll go through it.