How to implement a Bessel filter with ModelingToolkit?

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Designing a band pass filter with modeling toolkit

Before doing analog filter design with DSP, beware of analogfilter design seems to be broken · Issue #341 · JuliaDSP/DSP.jl · GitHub TLDR; analog filter design is quite broken in DSP but the problem can be worked around. Having said that, here’s how you can convert a filter to an MTK system with the PR #843 using DSP, ControlSystemsBase # Digital filter fs = 100 df = digitalfilter(Bandpass(5, 10; fs), Butterworth(2)) G = tf(df, 1/fs) bodeplot(G, xscale=:identity, yscale=:identity, hz=true) …

demonstrates one particular way of obtaining an MTK model for a transfer function.