Are you (/were you) talking about caps for smoothing 50Hz, then? I was wondering whether it'd be cheaper just to buy those multi-Farad suckers available for car audio, but still think the voltage ripple would be larger than a DC chopper.johnf wrote:my earlier post still stands I assumed that you wanted DC all it needed was a big bridge and caps on the output.
how many caps depends on the inductance of your Helmholtz coil. Those big torroidals are about three volts per turn (from memory)
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