My second cnc build is coming to its end and I ordered some 80V 6A drivers from ebay.
My steppers are 270oz-in 6 wire,1.6mH wich if my calculations are correct work best at 40V (Bipolar Half Coil) or 80V if connected (Bipolar Series)
I have transformer that is 220/380V 400VA with multiple outputs from 4V to 113V.
I ordered some bridge rectifier rated 50A 1000V and 2 electrolytic capacitors 100V 10000uf.
I am planing to run the motors at 40 or at 70V,witch ever shows best performance for my needs.
The question is can I use this bridge rectifier circuit at both voltages and what do you recommend for a bleed resistor or some protective circuit to protect drivers from power surge...
What is the best place for a switch,at AC primary,AC secundary od after the bridge rectifier?