Author Topic: FOSS for PCB trace/plane resistance analysis  (Read 548 times)

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Offline Palmitoxico

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FOSS for PCB trace/plane resistance analysis
« on: June 14, 2021, 08:19:34 pm »
Does anyone knows some free / open source software solution that does this: https://manual.pcb-investigator.com/pages/trace_resistance_simulation_ohmmeter ? I have a complex multilayer PCB with GND planes / pours and need to do some resistance checking between different points before manufacturing, this type of simulation doesn't seems to be commonly included into most PCB EDA packages.

Maybe there is some Finite Element Analysis library that can do this kind of thing with some extra coding, but I'm not very familiar with those. If anyone can provide some pointers where to start I would be glad!

Thanks
Augusto.
 

Offline Pseudobyte

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Re: FOSS for PCB trace/plane resistance analysis
« Reply #1 on: June 21, 2021, 05:58:13 pm »
If you were determined enough you could download GNU octave and setup the gerber interpreter and ODE system yourself. Otherwise FreeFEM might be a fairly similar avenue that is more geared towards FEA but still requires you to know some math/physics.
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Offline pointhi

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Re: FOSS for PCB trace/plane resistance analysis
« Reply #2 on: June 21, 2021, 06:15:02 pm »
If you are adventurous, there is a WIP integration of power and signal integrity for KiCad: https://gitlab.com/pointhi/kicad/-/tree/sparselizard_fem

(Old) build instructions: https://gitlab.com/pointhi/kicad/-/wikis/Sparselizard-branch
 

Offline Palmitoxico

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Re: FOSS for PCB trace/plane resistance analysis
« Reply #3 on: June 21, 2021, 07:45:40 pm »
If you are adventurous, there is a WIP integration of power and signal integrity for KiCad: https://gitlab.com/pointhi/kicad/-/tree/sparselizard_fem

(Old) build instructions: https://gitlab.com/pointhi/kicad/-/wikis/Sparselizard-branch

It looks promising, I'll take a look.

If you were determined enough you could download GNU octave and setup the gerber interpreter and ODE system yourself. Otherwise FreeFEM might be a fairly similar avenue that is more geared towards FEA but still requires you to know some math/physics.

I was going to this path, but I quickly discovered how little I know about FEA in general.
 


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