On Sun, 12 Jun 2005 15:22:00 -0700, Don Lancaster
wrote:

Bob Penoyer wrote:


A rectified AC waveform contains DC and AC components but if the
current isn't changing direction, it isn't alternating current. And,
if it isn't AC, it's DC.


Total and utter horse****.

Look, if the current's not alternating its direction, it's not
alternating current. To be clear, just because its amplitude is
changing does not mean it is alternating. In particular, a rectified
AC waveform it isn't changing direction.

There are certainly AC components in the waveform. But the sum of all
the components, including the DC component, never changes direction,
so the total signal is a DC signal. Here, "DC" does NOT mean
"constant"; it means unidirectional.