Bode 3 dB down point
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I need to get the frequency of the 3dB down point from the appearing graphs, however, I am not too sure on how to get it.
clc;
R1 = 9e3;
R2 = 1e3;
C = 0.22e-6;
Z = 1+C*R2;
sys = tf([C*R2 1],[C*R1 Z]);
bode(sys)
回答（1 个）
Star Strider
2021-3-26
fb = bandwidth(sys)
producing:
fb =
510.290495078091
It does not work al all objects, however it works here.
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2021-3-25
2021-3-26
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