Big Servo Drives

Hi Group,
Forgive my ignorance as I'm not an electrical engineer, but after
reading the comments on this subject I'm wondering if it would be
helpful to have an external power board with overkill mosfets and
anything else necessary to remove back emf, etc. This way you could
use any servo driver to do the positioning function with the output
only switching larger mosfets - keeping high voltage / current noise
away from the encoder signals. The external power board could then be
designed for the correct power without dictating which servo driver
you have to buy.
Regards,
Glen.