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m6thompson
USA
2 Posts |
 Posted - Jan 15 2025 : 17:50:48
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Instead of external voltage nodes, I would like to have current source and sink node pairs and see the voltage field as the response. Ideally, it would be convenient to have multiple current source/sink pairs in a simulation, but not necessary since the result from multiple pairs could be obtained through superposition of results from multiple runs of single pairs.
Is this something that can be done easily with any of the FastFieldSolvers programs? |
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Enrico
545 Posts |
Posted - Jan 16 2025 : 11:30:30
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Hi m6thompson,
I'm not fully sure I get your point. FastHenry will provide you an impedance matrix, that you can use in any electronic simulator (e.g. Spice) as a network of inductances and resistances or (if you want to simulate the behavior over a range of frequencies) as a sub-circuit 'black box'.
It is up to you how to stimulate the network resulting from the impedance matrix - you can use voltage sources, or current sources, as you prefer.
You can also derive an admittance matrix from the impedance matrix, as you have it from FastHenry.
Internally, FastHenry will use its own method for solving the Maxwell's equations in the magneto-quasistatic regime assumption; but this is internal only, so once you have the resulting impedance matrix, you can do whatever you want with that.
Or maybe I'm misunderstanding your question?
Best,
Enrico
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m6thompson
USA
2 Posts |
Posted - Jan 16 2025 : 13:56:19
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Thanks for taking the time to reply. EM simulation is new to me so I'm not fully up to speed on available tools.
I'll dig into the documentation and examples a little further and try to implement what you suggested. |
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External Current Nodes
