A negative feedback control system has the loop transfer function (a) When T 0 2 s, find K such that the phase margin is 40 deg using the margin function, (b) Obtain a plot of phase margin versus T for K as in part (a), with 0 curren T curren 0 3 s Ke Ts s 12 L(s) G(s)G(s)

Question: A negative feedback control system has the loop transfer function (a) When T = 0.2 s, find K such that the phase margin is 40°

A negative feedback control system has the loop transfer function

(a) When T = 0.2 s, find K such that the phase margin is 40° using the margin function, (b) Obtain a plot of phase margin versus T for K as in part (a), with 0 ‰¤ T ‰¤ 0.3 s.

Ke Ts s+12. L(s)-G(s)G(s)

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