On Thu, 2012-04-19 at 17:36 -0600, Larry Benko wrote:
> Dan,
>
> I don't quite calculate the same number.
>
> If the source is 3 phase power and halfwave rectification the ripple
> would be 50%. This is most likely _not_ the case. In the more likely
> case of full wave rectification and 3 phase power the ripple would be
> 13.4%. In the halfwave case there is always one phase within +/-60
> degrees of the max. (1 - sin(30 deg.) = 0.5) and in the fullwave case
> there is always one phase within +/-30 degrees of the max. (1 - sin(60
> deg.) = .866). This of course is the ideal case and additional voltage
> drops in the transformer, wiring, etc. would increase the ripple.
Ick! Yea, brain fart on my part, you are of course correct, but in
either case a FM set running from a three phase 6 pulse rectifier with
no bulk supply filtering is clearly entirely possible.
Regards, Dan.
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