My stepper motor sends 200 pulses, one turn for more than one minute. Then increase the pulse frequency, want to speed up, the motor did not move. Ask the experts, why is that? The speed on the instructions of the motor can be very high!Thank you, my friends. Or ask: does it have anything to do with the trapezoidal acceleration pulse designed for stepping motors?
At low speed for long time (excitation coil current is larger) so the large torque, torque transmission in general in order to maintain a constant when using an adjustable switching power supply chip (such as lm2576), function is the speed of change and change the excitation voltage, high voltage current to the same natural needs of the time in less than
I also met the landlord, the normal work of the motor at low speed and high speed jitter but does not turn, analysis of the reasons are as follows: at high speed when the excitation coil excitation time to switch on time, the current torque and the size of the coil, excitation coil at high speed when the time is very short, because the coil sensitivity the load reaches a certain current need for a certain period of time in the supply voltage under certain specific, do not calculate (too much trouble is not necessary)
It seems that the big brother on the third floor has not used the stepping motor, and the non motor is for precise control (a pulse is turned from one to the smallest angle).
Don't know what to say about you, you change your mind. Step motor inertia is small, the speed of our basic as constant, the actual control of the motor running angle is the power on time to control the motor, such as motor speed is 30 revolutions per minute, per minute turned 10800 degrees, the stepper motor can rotate 1.8 degrees only every time, indicates that the control circuit of the motor can let the motor conduction time control in 10 millisecond precision, similarly, you should let the motor rotate 18361.8 degrees, can let the motor continuously energized 10201 10 ms or 102. seconds on it. This is easy to implement.
