Stepping motor is an actuator that converts electrical impulses into angular displacement. Popular point: when the stepper driver receives a pulse signal, it is driving a stepper motor according to set the direction of a fixed Angle (and the step Angle). You can control the amount of angular displacement by controlling the number of pulses, so that the target is accurate. At the same time you can control the pulse frequency to control motor rotation speed and acceleration, so as to achieve the purpose of regulating, made in the field of speed and position control with stepper motor to control becomes very simple.
Although the stepping motor has been widely used, the step motor is not used as a normal dc motor and ac motor is used regularly. It must be used by the control system such as double ring pulse signal and power drive circuit. Therefore, it is not easy to use a good step motor, which involves a lot of specialized knowledge, such as machinery, electrical machinery, electronics and computers. Stepping motor is one of the key products of mechanical and electrical integration, and is widely used in various automatic control systems. With the development of microelectronics and computer technology, the demand for stepping motors is increasing, and there are applications in the national economy.
The step motor is also called the electric pulse motor. It is an actuator that converts electrical pulse signals into mechanical angular displacement. To enter an electrical pulse, the rotor turns a corresponding step Angle whenever the motor winding receives an electrical pulse. The magnitude and speed of the rotor's angular displacement are proportional to the number of electrical impulses and their frequencies. And synchronize with the input pulse in time. As long as the number of control input electrical impulses, frequency and motor winding current phase sequence can achieve the desired Angle, rotational speed and steering, easy to digital control by microcomputer. Second step motor characteristics of stepper motor working condition not easily affected by various interference factors, such as the size of the power supply voltage fluctuations, current and waveform changes, temperature, etc.), as long as they did not cause the size of the step motor to produce the phenomenon of losing step before, will not affect the normal work; Stepper motor step away from the Angle of error, the rotor turns after a certain number will also appear cumulative error, but the rotor turns after a turn, the cumulative error for "zero", not long-term accumulation. Control performance is good. Step motor is widely used in the electromechanical integration system of open loop structure, so that the system is simplified, such as simple CNC system. The type of the three-step motor
Stepper motor is a kind of induction motor, its working principle is the use of electronic circuit, direct current (dc) into time-sharing power supply, multiphase sequential control current, in this current for stepper motor power supply, step motor to work properly, is time-sharing power supply for step motor drive, multiphase timing controller.
The step motor is an open loop controlling element which converts the electrical pulse signal into angular displacement or line displacement. In the case of the overload, motor speed, stop position depends only on the pulse signal frequency and pulse number, and not affected by load change, when the stepper driver receives a pulse signal, it is driving a stepper motor according to set the direction of a fixed Angle, known as the "step Angle", its rotation is based on the Angle of the fixed step by step. It can control the amount of angular displacement by controlling the number of pulses, so as to achieve accurate positioning. At the same time, the speed and acceleration of the motor can be controlled by controlling the pulse frequency to achieve the goal of speed adjustment.
