Re: [SI-LIST] : coming up with average power estimates for buffers

Adrian Shiner (adrian.shiner@virgin.net)
Tue, 03 Aug 1999 20:21:45 +0100

Guys,

Check your mathematics text books for differences between RMS and RSS. RMS leads to gross errors in these situations. If you know the power then you know the current. On the AC supply side however, at these power levels then you
need to consider the power factor.

Best wishes

Adrian

"Ingraham, Andrew" wrote:

> > Foget RMS and simple averaging. Work with RSS ([Square] Root
> > of the Sum of the Squares values & you will hit a realistic
> > value.
>
> But aren't RSS and RMS basically the same thing? RSS just implies discrete
> sampling, while RMS might be continuous.
>
> I still think average power is what you want. It tells you how much heat
> you need to remove, how much energy/second you need to deliver, etc.
>
> Andy Ingraham
>
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