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sharpie7 / circuitjs1

Electronic Circuit Simulator in the Browser
GNU General Public License v2.0
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Feature Request: Chokes #620

Closed haydenth closed 3 years ago

haydenth commented 3 years ago

Hello all!

I'm trying to figure out how to model a choke in circuitjs. Here's an example circuit from wikipedia. image

I don't see this as an option and perhaps its related to using a transformer like in #392

If this exists and I'm an idiot, please just close this and tell me off :)

pfalstad commented 3 years ago

An RF choke could be modeled as a small inductor, like 2 millihenries.

The choke in your picture is a common-mode choke, and can be implemented using a transformer with a small inductance. According to some datasheets I found, the inductance could range from 7 microhenries to 60 millihenries.

haydenth commented 3 years ago

Perfect, thank you. Didn't realize it was quite that straightforward :)

haydenth commented 3 years ago

Shortly after I closed this, I found a good document on chokes + equivalent circuits if anyone in the future ever ends up here;

https://www.murata.com/~/media/webrenewal/products/emc/emifil/knowhow/26to30.ashx