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Step angle and coil group number of two-phase, three-phase and five-phase hybrid stepping motor

2023-01-04

Latest company news about Step angle and coil group number of two-phase, three-phase and five-phase hybrid stepping motor

As we all know, stepping motor is an open-loop control element stepping motor that converts electrical pulse signal into angular displacement or linear displacement. In short, it is a device that makes objects produce relative angular displacement. By controlling the sequence, frequency and number of electrical pulses applied to the motor coil, the control of the direction, speed and rotation angle of the stepping motor can be realized.
 

However, when selecting a common type, it will be called two-phase, three-phase and five equal stepping motor. How is this called?
 

Stepper motors are generally composed of front and rear end covers, bearings, central shafts, rotor cores, stator cores, stator components, corrugated washers, screws and other parts, and are driven by coils wound on motor stator slots. Normally, a wire wound in a circle is called a solenoid, while in a motor, the wire wound on the stator slot is called a winding, coil, or phase.
 

According to the upper winding of the stator, there are two phase, three phase and five equal series. The most popular is the two-phase hybrid stepping motor, which accounts for more than 97% of the market share. The reason is that it has a high cost performance ratio, and it works well with subdivision drives. The basic step angle of this motor is 1.8 °/step. With a half step driver, the step angle is reduced to 0.9 °. With a subdivision driver, the step angle can be subdivided to 256 times (0.007 °/microstep). Due to friction and manufacturing accuracy, the actual control accuracy is slightly low. The same stepping motor can be equipped with different subdivided drivers to change the accuracy and effect. There are four phase four beat operation mode, namely AB-BC-CD-DA-AB, and four phase eight beat operation mode, namely A-AB-B-BC-C-CD-D-DA-A.
 

Two phase: 2 groups or 4 groups, step angle 1.8 °
Three phase: 3 groups, step angle 1.2 °
Five phases: 5 groups, step angle 0.72 °

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