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As per my understanding, you would like guidance in making the RLC Circuit in Simulink and then calculating the “transfer function” of that circuit. I was able to replicate the circuit and model it in Simulink R2024a.
Kindly refer to the following steps to realize the model and calculate the "transfer function" of the RLC circuit:
- Double-click on the Simulink workspace and search for the required “blocks” and realize the circuit as given in the image below.
- To add the “linear analysis points”:
- right-click on the “Step” wire > Linear Analysis Points > Input Perturbation.
- right-click on the “Scope” wire > Linear Analysis Points > Output Measurement.
- click on the "green play button” to simulate the model.
- After simulating the model,
- On the toolbar go to Apps > Model Linearlizer.
- A new window will automatically open.
- On the top ribbon of this new window, go to Linear Analysis tab and click “Step”.
- This will create a “linsys1” object in the Linear Analysis Workspace.
- To move the linearized model to the MATLAB Workspace, right-click on “linsys1” object and select "Export to MATLAB" option.
- To obtain the “transfer function” of this linearized model, go to the Command Window of MATLAB and run the following command:
>> tf(linsys1)
For more understanding of the above mentioned steps, refer to the following MathWorks documentation links:
Also please find attached the “sample_RLC_TF.slx” Simulink model for reference.
