With the development of society, stepper motors can be seen in our daily work, whether it is monitors, copiers, printers, or fax machines. Stepper motor as the electrical pulse signal into an angular displacement or line displacement of the open-loop control of the motor. Under normal circumstances, the speed of the motor and the stop position depends only on the pulse signal frequency and the number of pulses and is not affected by changes in load. Although there is always a certain error between the angle turned by each step of the stepper motor and the theoretical step, the stepper motor has the same number of steps per week of the rotation, and the step error will not accumulate for a long time in the case of no lost steps.

Brushless DC motor quiet, light and long life. A Brushless DC motor can realize more accurate motion control because of the current controlled by the computer. Because of all these advantages, Brushless DC motor motors are often used in modern equipment that requires low noise and low heat, especially for continuous operation. This could include washing machines, air conditioners, and other consumer electronics.

BLDC motor in the“BL” means“Brushless”, is the DC motor (brush motor) in the“Brush” no. The role of the brush in a DC motor (brush motor) is to pass electricity through the commutator to the coil in the rotor. So how does a BLDC motor without a brush charge a coil in the rotor?

The stepping motor is a kind of electromechanical device which directly converts electrical pulse into mechanical motion by controlling the order, frequency， and quantity of electrical pulse applied on the motor coil, it can control the steering, speed, and rotation angle of the stepping motor.

A Stepper motor is a discrete control motor that converts the electric pulse excitation signal into the corresponding angular displacement or line displacement. This kind of motor moves every time an electric pulse is an input, so it is also called a pulse motor. So what are the categories?

Servo Motor uses a three-phase synchronous Motor, its characteristic is the rotor, there is no three-phase asynchronous Motor in the cage bar, the rotor has many patches, and is a permanent magnet material. In this way, the rotor has its magnetic field, unlike the induction current induction motor is produced by the magnetic field.