On Fri, 10 Jun 2005 21:33:11 -0700, Bob Penoyer wrote:

On Sat, 11 Jun 2005 04:12:52 GMT, "NSM" wrote:


wrote in message
groups.com...

Again, is the term "DC Sine Wave" problematic because it is
fundametnally wrong

Yes. DC by definition is zero frequency.

Um, no. DC is Direct Current, i.e., current that flows in one
direction. For example, the output from a rectifier is DC but it
certainly isn't "zero frequency."

No, it is NOT DC. Sometimes when speaking casually people call it DC, but
more often it will be called rectified AC.

I agree with you that DC stands for Direct Current. But what is the
logical meaning of that? Who knows. The bottom line is that when a
waveform varies with time, it is NOT DC in popular useage.

I'm setting followups to sci.electronics.design.

--Mac