Advanced Member level 2
When we rectify a 3 phase 220VAC line we get a max ~538Vdc voltage at the output. So the filter capacitor must withstand 600V i think. But i couldn't find a capacitor which has such a voltage rating at 220uF or 330uF. I'll solder it on a pcb so it must be suitable for that. I always see having 400-450V max rating capacitors in that capacity range. There are very big capacitors say 9mF at KV ratings but they aren't convenient for this job. If they don't exist or they are rare how is this job done? Do they use 2 capacitors in series? Is it convenient? Or are there another techniques?