On Sun, 28 Sep 2008 19:03:28 -0400, Jamie
t put finger to
keyboard and composed:

Franc Zabkar wrote:

How can you get 25VDC across a cap when the AC supply is only 14Vrms?
The maximum voltage should be only ...

14 x 1.414 = 19.8 - Vf(diode) = 19V

True how ever, if he does not have a True RMS meter and the wave form is
abnormal, then I guess it would stand the reason he'd be under reading
the AC voltage?
Which is why, the old fashion analog meter was good out side a true
RMS meter that used thermo technology.

AIUI, a standard multimeter assumes you are measuring a sinusoid and
estimates the RMS voltage based on the peak value. I can't imagine
that the OP's waveform would be greatly distorted at a load current of
0.1A. In any case, how can you distort the waveform so as to increase
its amplitude?

- Franc Zabkar
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