Re: Is it possible to simulate ac signal with dc?..tia sal
- From: Don Bowey <dbowey@xxxxxxxxxxx>
- Date: Mon, 19 Sep 2005 08:35:55 -0700
On 9/19/05 7:28 AM, in article FWzXe.10$tz3.1345@xxxxxxxxxxxxxxx, "Don
Stauffer" <stauffer@xxxxxxxxxxxx> wrote:
> One problem with some of these discussions is that there are two
> definitions of DC. One has DC as any signal always of the same polarity,
> another requires DC to have the same value throughout time.
>
> DC with a varying voltage but always the same polarity can of course be
> changed to AC by running the signal through a capacitor.
>
> Another problem I have seen whose argument reduces to the above is a
> pulse width modulated signal but always of the same polarity (if you can
> call zero volts a polarity- however, to overcome this problem one can
> consider a PWM signal from a small fraction of a volt to many volts).
>
> Another argument I have seen rage from the PWM situation is whether a
> PWM signal is analog or digital :-)
Answering the practical question of a newbie with this type of
hypothetical/metaphysical nonsense is...... Well, garbage.
I wonder if these considerations of DC began with the musings of some
complete idiot, or some idiot with a phd attempting to think outside the box
(an incomplete idiot).
.
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- Re: Is it possible to simulate ac signal with dc?..tia sal
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- Re: Is it possible to simulate ac signal with dc?..tia sal
- From: Don Stauffer
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