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Stepper Motor Maximum Speed and Power Calculator

Current through the coil is proportional to the time that the voltage has been applied, and inversely proportional to the inductance:

I=VTL

Time is given by:

T=ILV

For one step, the current must go from 0 to Imax and back to 0, or alternatively from Imax to +Imax:

I=2Imax

The time for a single step is:

T=LImax2V

To compute maximum revolutions per second, divide seconds per step by steps per revolution:

Rev/sec=VL2Imax÷stepsrev

Maximum power is given by:

Pmax=2ImaxV