11-02-2014, 10:30 AM
(11-02-2014, 10:23 AM)Mark Hennessy Wrote: It's only DC if it's not changing. Perhaps a battery.
Everything else is AC with a DC offset.
Just because a signal has a large DC offset and therefore isn't able to cross 0V, that does not make it DC.)
Mark
Thanks for that explanation Mark, its cleared it up for me.
John






