From: Mike Monett
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Subject: Re: Transistor amplifiers v. frequency in SPICE
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Date: Tue, 14 Jan 2003 12:28:34 -0500
NNTP-Posting-Date: Tue, 14 Jan 2003 12:28:01 EST
Organization: Bell Sympatico
Paul Burridge wrote:
> On Mon, 13 Jan 2003 18:19:44 -0500, Mike Monett
> opined thusly:
> >Try Microcap. The free version is limited to 50 nodes or so, but that's
> >more than plenty for most things. You will like the error handling and
> >schematic entry. It's very fast and very easy, and fully integrated so
> >you don't have to load and unload separate programs. I see they are up to
> >version 7 now. That's two generations ahead of what I'm using, but I'm
> >quite satisfied with version 5.
> > http://www.spectrum-soft.com/index.shtm
> Okay, Mike I've noted that little lot. It's just that I feel that
> changing versions probably isn't the way to go just yet. The fault is
> most likely mine rather than the s/ware, which is, after all, supposed
> to be a pro version. I'll press on for the time being and see if I
> make better headway before dumping it and trying something else. But
> if that day should come, I'll certainly give your suggestion of
> Microcap the first try.
All the SPICE versions claim they are the best. Don't pay attention to
sales hype. You want a program that is best suited to the way you work.
When it came time to dump Intusoft, I downloaded every program I could
find and tried some simple circuits, like a common-emitter amplifier,
full-wave bridge rectifier, etc.
I evaluated each one on the ease of component lookup, schematic entry,
entering parameters in transient and ac analysis, graphical analysis
capability (risetime, frequency, period, max, min, etc), exporting graphs
to Windows, finding information in the help files, error handling, time
required to enter a schematic and collect data, and overall ease of use.
Microcap was the clear hands-down winner. I keep a copy of PSPICE to
confirm the results if there is any question, but it is too difficult to
use for daily work.
After you start using SPICE, you will develop a collection of files to
handle the typical work you do, and it will be difficult to change
programs since you will have to rebuild your database. So it's worth the
time and effort to evaluate different versions to see which one suits you
best before you start building your database.