Greetings to all,
as a rookie i am working on a study project: trying to build a stepper motor drive.
In the hope of getting some good advices, hints (and well-deserved criticism) i attach the first draft of my schematic.
If you have a small spare time could you take a look on it, please?
With this home made board i'd like to drive a (relatively) small bipolar stepper motor in chopper mode.
Parameters: I = 2.5A, R = 0.6 Ohm (in parallel) U = 1.5V, L = 2.1mH
Expected maximum speed: 2000 steps/s
This project has absolutely no economical relevance (besides the fair amount of money i supported the local hobby electronics store with); i just simply want to study and hopefully understand the basic operation of the main functional blocks of such kind of circuitries.
Thank you very much in advance.