Lead, lag, and PID compensator structures using bode plots |Using Bode Plots, Part 4

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Learn frequency domain characteristics of lead, lag, and PID controllers in this MATLAB® Tech Talk by Carlos Osorio.

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amazingly simple and straight to the point explanation, I have been studying that for quit a while now, and i Just got it clear and splendid. respect

btakaz
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Can you do a video on Frequency response of transfer function with and without controller using MATLAB

muralikrishna
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After few years of working, it began to click for me

nikariff
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2:35 “integrator characteristics, infinite gain at DC, and high gain over the low frequency range.” Really? All are integrators really in terms of Current? Did I miss him say current prior to this point??
Guess Proof: set transfer function C = G_o(s+w_z)/s == DC, therefore s -> - w_z and then solve for G_o:
G_o = - DC *w_z/(-w_z+w_z) -> - DC*w_z / 0 (division by zero) -> -INFINITY. DC is direct current with circuit equations defined not to have frequency, while AC (alternating) has frequency. If that’s right (doubtful), then this educational video is tailored to certain types of engineers (e.g. electrical) and not generalized. It’s like adding unnecessary complexity to an already complex subject! Lol

lt
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thanks for the video!! But can you explain why a bump in phase indicates increase in damping? Thanks!

matthewjames