Timeline for Frequency-dependent behavior of a resistor in time domain simulation
Current License: CC BY-SA 4.0
7 events
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| Jun 22, 2021 at 23:17 | comment | added | user69795 | Hi, Wallflower: I used to know much more about this than I now remember. There have been papers written on the theory of doing this. I believe, though, that the most practical and successful way is simply to start with the RL or RC circuit configuration and use circuit analysis based numerical optimization to fit the response to your desired curves. Some circuit analysis programs come with built in optimizers. These days brute force computing often beats theory. | |
| Jun 22, 2021 at 8:54 | comment | added | Wallflower | what would you suggest please as a way of computing the values of R_i L_i that will reproduce the same frequency dependent behavior as that of R(f)? | |
| Jun 22, 2021 at 7:15 | vote | accept | Wallflower | ||
| Jun 22, 2021 at 6:59 | comment | added | Wallflower | Well actually for the frequency-dependent behavior of dielectric losses, an RC ladder is used to account for their frequency behavior, so I guess if I figure out how to compute the values of R_i L_i of the RL ladder that will reproduce the same behavior of skin & proximity effects over my frequency range of interest, I'll do the same for dielectric losses | |
| Jun 21, 2021 at 23:32 | comment | added | user69795 | You showed the example with L-R networks for skin effect. I mentioned dielectric losses because that is the other frequency dependent loss in cable modeling, as in the article you referenced. | |
| Jun 21, 2021 at 22:04 | comment | added | Wallflower | Thank u for your response. I am familiar with Kramer-Kroning relations and it did not cross my mind at all to view the problem from that angle. Thanks again for your enlightenment. As for the model of dielectric losses, a parallel RC circuit is the one generally used where C represents the stored electric energy and R the dielectric losses, but I really do not know what's the link with a frequency-dependent resistance? | |
| Jun 21, 2021 at 21:28 | history | answered | user69795 | CC BY-SA 4.0 |