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Parasitic capacitance of inductor

Posted 21 juin 2012, 05:36 UTC−4 Low-Frequency Electromagnetics Version 4.2a 3 Replies

Vladimir Parfenyev
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Hi!

How can one calculate parasitic capacitance of inductor? Is it possible in 2d axisymmetric case? I can't find any situable example.

P.S. I use AC/DC Module to model inductor.

Thank you!
3 Replies Last Post 12 nov. 2013, 08:18 UTC−5
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago 22 juin 2012, 06:00 UTC−4
Hi

its not obvious to know what you call the parasitic capacitance, as even the cabling come with extra C values to any model.

But in ACDC ES you can get the lumped capacitance of a complex model, and you can compare that to the results from a simple geometrical results, based on electrode shape and distance + dielectric constant,. but the latter you must calculate by hand


--
Good luck
Ivar
Hi its not obvious to know what you call the parasitic capacitance, as even the cabling come with extra C values to any model. But in ACDC ES you can get the lumped capacitance of a complex model, and you can compare that to the results from a simple geometrical results, based on electrode shape and distance + dielectric constant,. but the latter you must calculate by hand -- Good luck Ivar
Levent Iblis
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Posted: 1 decade ago 8 nov. 2012, 18:52 UTC−5
simply plot a frequency/Impedance graph, and curve-fitting some capacitance and use 1/2piefc.

www.7pcb.ca
simply plot a frequency/Impedance graph, and curve-fitting some capacitance and use 1/2piefc. www.7pcb.ca
Dima Apter
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Posted: 1 decade ago 12 nov. 2013, 08:18 UTC−5

How can one calculate parasitic capacitance of inductor? Is it possible in 2d axisymmetric case?


Dear Vladimir,

Did you find an answer to your question? Do you have any working example?

Thank you in advance,
Dima.

--
Dima Apter
A2Z Consulting Ltd.
www.a2z-consulting.com
[QUOTE] How can one calculate parasitic capacitance of inductor? Is it possible in 2d axisymmetric case? [/QUOTE] Dear Vladimir, Did you find an answer to your question? Do you have any working example? Thank you in advance, Dima. -- Dima Apter A2Z Consulting Ltd. www.a2z-consulting.com

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