How to establish a nonlinear current source in simulink?

Question

fang 2023-3-17

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https://ww2.mathworks.cn/matlabcentral/answers/1930575-how-to-establish-a-nonlinear-current-source-in-simulink

回答： Sanjana 2023-3-29

The circuit model I built in the simulink module contains a current source with a non-linear I-V relationship. How do I build this non-linear function? Is there any such module or reference case or solution? Thank you very much. How to establish a nonlinear current source in simulink?

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Answer 1

Sanjana 2023-3-29

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Hi,

I understand that you want to establish a nonlinear current source in Simulink. For this, you can follow the below approach:

Add a “voltage source” block to your Simulink model.
Connect the “voltage source” block to the input of a “MATLAB function” block.
Define the non-linear relationship you want to implement inside the “MATLAB function” block.
Connect the output of the “MATLAB function” block to the input of a “current source” block in your model.

Hope this helps!