What are the differences between the stepper motor and ordinary run stepper motor is a kind of high precision, good control characteristic control system execution parts. It work in pulse way, each received one or a few pulses, motor rotor is a mobile location, moving distance can be very small. stepper motor and ordinary motor difference is the stepper motor to accept the pulse signal control. Stepper motor is a kind of electronic switching device called circular distributor, through the power amplifier to excitation winding in turn according to the order on the dc power supply. Due to the excitation winding is arranged in the space according to certain rules, take turns and dc power after connect, will form a step change in the space of a rotating magnetic field, make the rotation of the rotor step by step, as the pulse frequency increased, speed will increase. now more commonly used stepping motor including reactive stepper motors, permanent magnet stepper motor, single-phase type hybrid stepping motor and stepping motor, etc. The reactive stepping motor rotor magnetic circuit made of soft magnetic materials, multiphase field winding of the stator, the torque caused by the change of permeability. At present, the application of hybrid stepping motor with the most.
