EMTP MAKE CURRENT SOURCE USING MODEL

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Gregory Tsagris

Joined Jul 7, 2018
1
Hello everybody,
I have to make a current source based on a function i have. I'm trying to use MODEL but i'm facing some difficulties. I have written the code on MODEL but i'm not sure about the options (data and noes) and how to make an output recognised as current. Any help would be really usefull! Thank you!
 

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MrAl

Joined Jun 17, 2014
7,194
Hello there,

That looks like quite a task there.

Do you have a specific time range you can solver for or do you have to solve for 0<=t<+inf ?
I ask because limiting the low end 't' might greatly simplify the n=100 terms, reducing to constants in a good approximation. Otherwise you've got to take factors like t/K up to the 100th power. I hope you are familier with log/antilog circuits :)

Are you limited to certain components, like can you use a microcontroller or something?

If you have already solved it with a voltage output, you can use a simple voltage to current converter which typically can be done with an op amp.
 
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