Hybrid-Stepper Motor - (PPT)

摘要

The traditional method to control a stepper motor is control with a fixed current, no feedback/regulation (open loop) Advantage: no encoder necessary To move the rotor, the coils are activated after each other, either digitally (Full-/halfstep) or with a sine formed current (microstepping) As long as the torque of the motor is sufficient, the rotor will follow the electric field, and thus the external speed signal exactly.