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Reply-To: "Kevin Aylward"
From: "Kevin Aylward"
Subject: Re: Problems with Electronics Workbench - timestep errors
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Date: Mon, 7 Oct 2002 12:47:09 +0100
NNTP-Posting-Date: Mon, 07 Oct 2002 12:47:12 BST
"Gibbo" wrote in message
> Mike <> ????????? wrote:
> >I know nothing about spice and simulators, so I got EWB
> >because it looked like it was made someone like me, but if I enter
> >anything but the simplest circuits I get erros saying that the
> >timestep is too small. I've tweaked any simulation options that look
> >like they have anything to do with timestep, but can't get rid of the
> >errors. Any suggestions would really be appreciated.
> It's usually as simple as selecting a different component (in the
> schematic) as being the highlighted component. No idea why this
> but it does.
> The downside is that this usually just resuts in a different error.
> Eventually I worked out that sooner or later, by continually selecting
> different component, I could get EWB to simulate without an error
> It's then that one realises the results are garbage anyway. I think
> have it tell me it can't do it than pretend to do it and produce
> I made this same observation on this NG about 4 months ago and was
> flamed for it. Lots of people came forward to defend EWB. As far as
> concerend they haven't tried it. It is simply a piece of crap. It
> simulate anything reliably more complicated than a few resistors.
> I then downloaded LTSpice and Superspice. I've been very happy with
> them so I know it's not me that's at fault. They're not as easy or as
> to use as EWB but at least the results have some bearing on reality.
I have posted yet another update. Fixed more bugs and stepped into
LTSpice's territory. I have added a very generic, general Pulse Width
Modulator that can be used as a building block for SMPS, there is also
one example. Indeed, I'm thinking of making an entire library of Maxim
SuperSpice, a very affordable Mixed-Mode
Windows Simulator with Schematic Capture,
Waveform Display, FFT's and Filter Design.
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