[Amps] Capacitors vs No Capacitors

[Dan Mills]

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.