On Tue, 14 Jun 2005 07:44:13 -0700, John Larkin
wrote:

On Mon, 13 Jun 2005 22:01:12 -0700, The Phantom
wrote:


Total and utter horse****.

"DC" is simply the first (or "offset" term in the Fourier expression of
any repetitive waveform.

DC, of course, cannot exist at all ever. Because it would have to be
unvarying through infinite time.


So, the first Fourier term is always zero. Got it.




Damn, this thread will hit 200 posts soon. The less the content, the
bigger the thread.

Amazing isn't it? We're actually witnessing a dispute over what AC and DC are? And
whether such things even exist?

I went looking on the IEEE website for a standard that would define the terms. There is
a standard, 100-1992 "IEEE Dictionary of Electrical and Electronics Terms" that probably
has their definition of AC and DC, but it isn't available on the web. I wonder if anybody
participating in this thread has access to it?

Even though I couldn't find the dictionary referred to above, I did look at a number of
their standards, and they are quite happy to use the terms AC and DC. I guess they don't
realize that those terms are "Total and utter horse****". Someone should tell them!



John