I searched the archives and could find the post. It might have been for a different driver, but in essence the concluded that there was something like .5v between grounds of different dc supplies plugged into different branch circuits.
The SG is putting out 5.0 v (scope) but I am limited to about 750 pps before the motor stops spinning and resonates. I had the current set to -0.5 v at the current sense eyelet, but then cranked full tilt which did not seem to help. The board was warm but not hot! I have a 12vdc 5A motor PS.
I do have the 1778 and missed the 2.3A limit for the board. If I short the current sense resistors, can I get to 2.5A? It is not perfect but should be better than using a 1473 2.0 A class motor? At least I think so.
So basically the same setup did not smoke the second board, but I am no struggling with max RPM. Should I try a high voltage for motor?
What the highest holding torque motor you have that pairs well with 8825?