Can you give me a brief introduction as to the question?
The driving power of the stepping motor is composed of a variable frequency pulse source, a pulse distributor and a pulse amplifier, whereby the driving power supplies a pulse current to the motor winding. The performance of the stepping motor is decided by the good coordination between the motor and the driving power supply.Stepper motor is divided into electromechanical and magnetoelectric type of the two basic types. Electromechanical stepping motors consist of equal parts. The solenoid coil is energized the magnetic force will produce, promote its core core motion through a gear mechanism of the output shaft to rotate an angle, through the anti rotation gear output shaft to maintain in the new position; a coil is energized, the shaft and the rotation angle in step motion.
As an actuating element in an automatic control device. Each input a pulse signal, step motor step forward, it is also called a pulse motor. Stepper motors are often used in digital computer peripherals, as well as printers, plotters, and disk drives.
Yes, one thing.The stepping motor is an open loop control element which transforms the electric pulse signal into angular displacement or linear displacement. In the case of non overloaded, the motor speed and stop position depends only on the pulse frequency and pulse number, regardless of load changes, when the stepper driver receives a pulse signal, it drives stepper motor to set the direction of rotation of a fixed angle, called "step", it is the rotation of the fixed point of the operation step by step. Number of pulses can be controlled by controlling the angular displacement, so as to achieve the purpose of accurate positioning; at the same time by controlling the pulse frequency to control the motor rotation speed and acceleration, so as to achieve the purpose of speed.
Magnetoelectric stepper motor main permanent magnet type and reaction type and permanent magnetinduction 3 forms. A permanent magnet stepper motor consists of four phase windings. The A phase winding is energized, the rotor will turn to the field direction of the phase winding of A phase and B phase; the power winding is energized, it generates a new magnetic field direction, then, the rotor can rotate an angle and in the direction of the magnetic field on the new incentive phase determines the order of rotor motion direction. The power consumption of permanent magnet stepper motor is small and the step moment angle is larger. The disadvantage is that the starting frequency and operating frequency are low.On the inside and outside surfaces of the stator and rotor cores, a similar alveolus is arranged according to certain rules. The variations of the magnetic resistance of the magnetic circuit are caused by the relative change of the two relative positions of the teeth, and the torque is generated. The step torque angle of the stepping motor can reach 1 DEG to 15 DEG, or even smaller, the accuracy is easy to guarantee, and the starting and running frequency is higher, but the power consumption is large and the efficiency is low.The permanent magnet induction type step motor is also called hybrid stepping motor. It is a combination of permanent magnet stepping motor and reaction stepping motor, and has both advantages.
