What is a stepper motor

A stepper motor is an open-loop controlled motor that converts electrical impulse signals into angular or linear displacements, it is the main actuator in modern digital program control systems and is widely used. In the case of no overload, the speed and stop position of the motor are only dependent on the frequency and number of pulses of the pulse signal, and are not dependent on the load change. When the stepper driver receives a pulse signal, it drives. the stepper motor to press Rotates the set direction at a fixed angle, called "step angle", and is rotated step by step at a fixed angle. Angular displacement can be controlled by controlling the number of pulses, so as to achieve the purpose of accurate positioning; At the same time, the rotation speed and acceleration of the motor can be controlled by controlling the pulse frequency, so as to achieve the purpose of speed regulation.

The stepper motor is a type of asynchronous motor. Its working principle is to use an electronic circuit to convert DC into a time-sharing power supply and a multi-phase current. Use this current control sequence to supply power to the stepper motor , so that the stepper motor can work normally, it is a time-shared power supply for a stepper motor, a multi-phase sequencer.