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Question:

Stepper motor driver subdivision 5General step drive subdivision

The common step driving segments, the same 1 segments and 8 segments of measuring a motor, 1 segments I give it 500 pulses per second, then 8 to 4000 pulse subdivision theory should be, why can the 4000 pulse faster than the speed of 1 segments of 500 pulses to slow, is not because of the 8 driver not every step angle to score so precise, cause the actual final point of the 4000 pulse pulse is less than 500, so the speed is slow? Please God pointing, what is the specific reason

Answer:

Stepper motor subdivision, is actually the concept of electronic gear ratio, by setting the segments can be pulse equivalent, but the operation of the motor speed is mainly related to the control pulse frequency, if 8 to 1 segments of the same segment of the speed to control the pulse frequency pulse of 8 segments is 8 times 1 subdivision frequency.
Maybe 64128, too.The general segmentation is added in order to improve the control precision, but the segmentation is increased to achieve the state of electric pulse to increase the precision of segmentation actually there are errors, but also the precision machinery manufacturing error, which can not be completely avoided.
A few segments is equivalent to "control precision is increased several times (high error of each pulse the rotation angle of the motor is small, the implementation process of throw generated pulses is small, the precision of control), if you want to keep the speed constant, the frequency will increase the corresponding factor.

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