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Date: Mon, 25 Mar 2019 19:01:57 +0100
From: "Nicklas Karlsson (nicklas DOT karlsson17 AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
To: geda-user AT delorie DOT com
Subject: Re: [geda-user] Netlist --> Linear state space model
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> The way I do it is to use gnetlist (or lepton-netlist) -g mathematica to make circuit equations in Mathematica. The function transferFunction from gEDAmath.nb  solves them for the transfer function. I use Mathematica’s StateSpaceModel  function, generally together with ToDiscreteTimeModel, to finish the job
> 
> Unfortunately, gEDAmath.nb was never in the gEDA distribution, so my (defunct) corporate website was the source. I should make this into a github project, but until I do, I can send you the file if you want it.

It would indeed be very nice if you could send me the files.

This time it is a 3-phase LCL filter and I already have some state equations although not for the best form according to my knowledge then all design considerations have been considered. To write systems on state space form is however very common although some circuit easy to represent in a schematic require some work to represent on this form.


Regards Nicklas Karlsson