The stepper servo is a stepper motor integrated with an encoder, which can feed back the motor’s movement position, torque and speed information, and other parts are basically the same as ordinary stepper motors.
Speaking of a stepper motor, it is a motor that converts electrical pulse signals into mechanical motion, and its working principle is based on magnetic field interaction and current control.
A stepper motor usually consists of two parts, a stator and a rotor.
There are several coils on the stator, and each coil is called a phase.
There are several poles on the rotor, and each pole is also called a phase.
When current passes through the coils of the stator, a magnetic field is generated in the stator, which interacts with the magnetic poles on the rotor, causing the rotor to rotate.