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How to apply AC voltage on two capacitor plates.

Posted Nov 5, 2012, 9:31 p.m. EST Version 4.1 4 Replies

Abid Iqbal
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Dear All
Hope you will be fine. I am beginer in the comsol, i want to model the electric field in two parallel plate capacitor by applying AC voltage to it and to see the electric field. I don't know how to apply on it . I have seen some example in which they use electric circuit for applying it but i can't see the nodes on which they have applied it.
Regards
ABid
4 Replies Last Post Feb 20, 2014, 6:24 a.m. EST
Eric Lämmel
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Posted: 1 decade ago Nov 6, 2012, 3:12 a.m. EST
Try 1 V or whatever at one plate and ground at the other plate, then add a frequency domain study.
Frequency domain represents AC voltage excitation in this case.
Try 1 V or whatever at one plate and ground at the other plate, then add a frequency domain study. Frequency domain represents AC voltage excitation in this case.
Abid Iqbal
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Posted: 1 decade ago Nov 8, 2012, 6:31 a.m. EST
Thanks for reply, will the frequency analysis will not change the frequency? i want to see the effect on same frequency
Regards
ABid
Thanks for reply, will the frequency analysis will not change the frequency? i want to see the effect on same frequency Regards ABid
Edgar Kaiser
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Posted: 1 decade ago Nov 8, 2012, 7:08 a.m. EST

You are free to decide whether you want to restrict the analysis to one frequency or a range of frequencies.

Cheers
Edgar
You are free to decide whether you want to restrict the analysis to one frequency or a range of frequencies. Cheers Edgar
Jason Cao
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Posted: 1 decade ago Feb 20, 2014, 6:24 a.m. EST

Try 1 V or whatever at one plate and ground at the other plate, then add a frequency domain study.
Frequency domain represents AC voltage excitation in this case.


Hi Eric,
I saw your replay in the Comsol forum and ask help from you. I want to add DC voltage and AC voltage on one capacitor plate, in frequency domain and I will analysis the frequency response. How should I add the Vac?how to solve the 't' problem? Please help me !
[QUOTE] Try 1 V or whatever at one plate and ground at the other plate, then add a frequency domain study. Frequency domain represents AC voltage excitation in this case. [/QUOTE] Hi Eric, I saw your replay in the Comsol forum and ask help from you. I want to add DC voltage and AC voltage on one capacitor plate, in frequency domain and I will analysis the frequency response. How should I add the Vac?how to solve the 't' problem? Please help me !

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