Reply-To: "Kevin Aylward"
From: "Kevin Aylward"
Subject: Re: Problems with Electronics Workbench
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X-Inktomi-Trace: public1-pete2-5-cust19.pete.broadband.ntl.com 1033974663 23440 22.214.171.124 (7 Oct 2002 07:11:03 GMT)
Date: Mon, 7 Oct 2002 08:11:01 +0100
NNTP-Posting-Date: Mon, 07 Oct 2002 08:11:04 BST
"Paul Burridge" wrote in message
> On Sun, 06 Oct 2002 19:35:49 GMT, "dob" opined
> >The AC analysis progrmme in spice is the one which will particularly
> >devices to have incredibly high voltages accross them . this is
> >will take the ac small signal model for components and construct
> >circuit from it.
> Nowhere near good enough, then.
You have missed the point.
To project small-signal, linear
> behavior into large signal, non-linear stuff is a total cop-out, IMV.
Of course AC anaylsis is good enough for what it is *exactly* *intended*
to do by specific design. The Spice AC anaylsis is *only* intended for a
small signal anaylsis about a bias point. This models *xactly what you
do in a real lab when measuring frequency response. To look at large
signals you need to use Spices's *Transient* anaylsis feature which
looks at signals in the time domain. This will show what the signal
really looks like, warts and all.
SuperSpice, a very affordable Mixed-Mode
Windows Simulator with Schematic Capture,
Waveform Display, FFT's and Filter Design.