My Bipolar stepper motor is of rating
Rated Current 6A
Rated Voltage 4.8v
Step angle 1.8
Number of phase 2
Holding torque 22Nm
Weight 8.6Kg
Iam using a Gear Box of ratio 1:20
So at the output iam getting a final torque 44Nm
i want lift a barrier arm of 3m length and around 10 Kg weight
suggest me a bipolar stepper driver circuit which would be applicable for my project