On 03/04/2015 06:12 AM, Ode Coyote wrote:
25 volts at 50/60 HZ does not impart enough velocity to
the ions to get them far enough away from the electrodes
to not be sucked back on when the polarity changes. To
use that "SWAP" frequency requires around 1000 volts.
Minimum at 25 volts would be around 1 minute between
polarity shifts and that will be very slow as it takes
around 20 seconds out of a cycle for the electrochemistry
to unwind and reverse.
3 minutes goes at about the same rate as DC
> Anything over a few seconds is very difficult
> using analog timing circuits, longer is harder
> and less reliable/accurate.
That why I finally went digital. A computer can count
infinite milliseconds effortlessly and get it right every
time with a 5 minute interval. Ode

That is very helpful information. I was just guessing what sort of cycle time I should design into a polarity flipper circuit. But I still want to see the experimental data that confirms your experience on this. I am also curious if there is anything measurably different that happens if I add pauses between flips, except that it slows the process.

--
Regards,

John Popelish


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