Plotting Resistance vs Frequency Response
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Hi,
I am attempting to plot resistance vs frequency based on a LISN (Line impedance stabilization network) circuit.
I placed a 1-A ac source across the connections and shorted the, which normally goes to the ac mains.
I want to plot the voltage across the current source. Then the impedance is that voltage divided by 1 A:and then ultimately plot the resistance vs frequency Below is my circuit and the intended result.
When I setect > 'Linear Point Point' > Output Measurement' and then go to the top menu > 'Analysis' > 'Control Design'> 'Linear Analysis' and then select 'Bode' Plot from the pop-up screen, I get an empty plot.
C1 = 8uf
C=0.25uF
R = 5
R1 = 1k
Inductor = 50uH
Any help would be apprecaited.
Regards,
Gus
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Paul
2025-3-28
0 个投票
Looks like the model also need an Input Perturbation to define the input to the transfer function. Should be on the same menu as Output Measurement.
4 个评论
Gus
2025-3-28
Paul
2025-3-29
I don't know if the approach is correct or not. I was just pointing out that if the Simulink Linear Analysis tool requires at least one input and one output to define the linearized model.
Gus
2025-3-29
Follow-up question. I think I know what I need to do. Just take the Vout and I out and perform the transfer function to get the resistance.
Question: what block do I use to insert say a value of one using the electrical library. Whatever I use, it will not allow me to connect to the port highlighted in yellow.
Gus
2025-3-29
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