As you know, most common stepper motors have 200 steps per revolution. And many stepper motors are driven in micro-steps. (1/8th micro-stepping is often chosen. Which gives 1600 steps per rev. 200 * 8 = 1600)
Is it possible to detect the BEMF during micro-step commutation? If so, exact position and speed could be detected. In essence, creating a closed loop system without an encoder. Any experience or thoughts?
C
