Sunday 3 March 2019

Maximum speed of stepper motor


I would like to compute maximum speed (RPM) of my bipolar stepper motor 42BYGHM809 -- rated voltage 2.7 V, rated current 1.78 A, phase resistance 1.6Ohm, phase inductance 2.5 mH.


I know how to compute speed if I use maximum rated voltage for this motor (cca 6.6 ms per step -> 0.38 rotate per second).


But how to compute speed if I am using A4988 stepper driver and voltage is 12 V?




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