Thank you for your reply
So is not that simple.
Can you have a look on the the stepper motor specs that I use.
The A figure represent a "chopper" driver with 100% duty cycle, the second one 25%. The specs are obtain with voltages eight times greater that motor rated voltage.
In my application I can go max to 12V with an 5v motor, although the motor is very snappy, the rating were closer to the A figure. I though there was a way to squeeze more juice from the motor.
All the best!
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