Re: SPICE AC analysis -- multiplying or dividing signals

"Joel Kolstad" <JKolstad71HatesSpam@xxxxxxxxx> schrieb im Newsbeitrag
news:12hquhh4ffush0a@xxxxxxxxxxxxxxxxxxxxx
Does anyone know how, in SPICE (LTSpice, SIMetrix, etc.), one goes about
multiplying or dividing two voltages in an AC analysis?

Hello Joel,

It's impossible to multiply or divide two AC-signals in a useful way for
..AC-analysis.
Multiplying two AC-signals would result in doubling the frequency.
This is not the concept of the AC-analysis in SPICE. AC-analysis is a pure
linear analysis by definition.

Best regards,
Helmut

I have an arbitrary voltage generator device ("B"), but for non-linear
equations such as V(node1)*V(node2), there's some linearization that
occurs and I usually just get 0v output as a result rather than a
multiplication.

After simulation I have no problem *graphing* something like
V(node1)*V(node2), but what I wanted was to create a new node that
presented that signal...

Thanks,
---Joel Kolstad




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