A 4.5V stepper on a v3 motor shield; is this possible?

Other Hardware Motors, Mechanics, Power and CNC
1

I read (here: http://arduino.cc/it/Main/ArduinoMotorShieldR3) that the motor shield should be powered with at least 7V.
Won't this eventually burn the coils on my 4.5V stepper motor?

Best regards,
Marv

2

  1. the question in the title has nothing to do with the question your asking, thats abit confusing

  2. no where does it state that, it states

Operating Voltage 5V to 12V

later it states

To avoid possible damage to the Arduino board on which the shield is mounted, we reccomend using an external power supply that provides a voltage between 7 and 12V.

which is the input voltage for the arduino, which hits a 5 volt regulator, therefore being able to provide more current than normally available on USB power sources.

3

Hey Osgeld,

Thanks for your quick reply and my apologies for taking such a steep turn in my reasoning :blush:

I've been doing some reading and apparently the voltage applied to the stepper isn't that important, as long as it's higher than it's rated value. Also I suspect that the motor shield will limit the current to the stepper if it would become too high?

Best regards,
Marv