I am trying to control a stepper servo ASTROSYN - MY7001 - STEPPER MOTOR, 14, 20MM with an Arduino Uno and the HBridge SN754410NE as shown on the page: http://arduino.cc/en/Reference/StepperBipolarCircuit.
It works fine with a 9v battery connected to the breadboard, although the battery dies in a little time. That's why I have some doubts and questions re the power that I need to supply to the motor. So far I haven't been able to guess the amount of power requested from the datasheets http://www.farnell.com/datasheets/61957.pdf
I have shown the datasheet to some helpful sop assistants at Maplin but they couldn't figure that out. After that I have spoken to Astrosyn, the makers of the motor, only to find out I should buy a P300 driver (input 18-36v) http://www.rapidonline.com/Electrical-Power/4-Phase-hybrid-stepping-driver-119486 to control the motor (cost 54£), although I mentioned I was using Arduino to control it; they suggested I get in touch with the makers of the board (Arduino) and ask the same question.
My question is: - what type of ac-dc adaptor should I use to power the HBridge driver to control the Stepper Motor? - has anyone had the same (or similar) experience?
Many many thanks in advance for your time and help
I wish you all a very good day