Hello,

I have a stepper motor with 48Vdc and 3 Amp. I would like to design a non linear dc power supply to powe this stepper. Could somebody point
it to me how can I size the capacitor on the dc power supply? I am
planning to use a regular transfomer to conver regular 208Vac to 48Vdc.
For the calculation, the RMS value on the transformer's secondary
side is 34Vdc (48Vdc/1.41) and the voltage across the load capacitor is
68Vdc. My question is that how do I size the proper capacitor to power
my stepper motor?

I have a stepper motor with 48Vdc and 3 Amp. I would like to design a non linear dc power supply to powe this stepper. Could somebody point