| T O P I C R E V I E W |
| DennyShih2 |
Posted - Jan 11 2024 : 15:01:58
Hi Enrico,
Thank you for teaching me how to use "capgen" in my previous topic, I have successfully executed the program. I set two 10X10 plates capacitance separate in 1:
capgen -s1 -w10 -p2 -n10 -d > <myfile.qui>
I get the result:
-----------------------------------
CAPACITANCE MATRIX, nanofarads
1 2
1%GROUP1 1 1.058 -0.8864
2%GROUP1 2 -0.8864 1.058
-----------------------------------
And I know C=#65288;#949;A#65289;/d
In the parallel capacitor configuration I set up, why is there a significant difference in the calculated capacitance values between fastcap and capacitance formula? How do I fix it?
Thank you ! |
| 2 L A T E S T R E P L I E S (Newest First) |
| Enrico |
Posted - Jan 16 2024 : 10:12:15
The difference is between a physical 3D capacitor and a simplified parallel plate capacitor, where fringing fields are completely neglected. Please see the sample file 'capacitor_simple.lst' in the Samples directory and read the comments inside the file.
Best,
Enrico
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| DennyShih2 |
Posted - Jan 11 2024 : 15:05:08
Sorry, the content format has shifted.
capacitance C= e(A/d) e:epsilon |
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