Peter Krause wrote:
From reading the thread from Tastingfan, is there a suggested website
where to 'learn' on line about protel simulation.
The manual is ok, however, some 'real' views would be great.
The manual really only addresses the interface, both schematic entry and
viewing of output. If you really want to understand the simulator, you
need to know SPICE. That is the underlying simulator engine. There are
a number of books on it, but what I know is pretty old. I would hope better
documents would be written that the awful stuff that was available when I
learned it. When I was playing with SPICE, on a microVAX computer
in the early 90's, UC Berkeley was still marginally supporting it, and I
had access to some people there. I actually found a bug and fixed it, with
the help of someone there. But, Berkeley no longer supports SPICE, it
is kind of an abandoned open source software project. Berkeley did publish
a bunch of papers on specific aspects of the simulator. They were
really hard
to use as a reference. I bought a book from a guy operating as Oholiab
Research that was very helpful. I looked up Oholiab and got pages of stuff
referring to the Book of Exodus, and there is a lot of spice in there, too,
so I was not able to find anything that looked like the same outfit.
There are a number of simulator variables that help when simulating
anything that has fast transients. I did some work simulating off-line
inverters, basically logic inverters running from 400 V DC supplies with
40 ns transients, (10 ^10 V/second) and SPICE doesn't handle this well
at all without adjusting a number of the simulation parameters.
There are a number of SPICE-related projects on sourceforge.net, but
I don't know if any of them have reccommended reading lists.
Jon
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