A negative feedback control system has the loop transfer function L(s) = Gc(s)G(s) =
Chapter 0, Problem CP9.4(choose chapter or problem)
A negative feedback control system has the loop transfer function L(s) = Gc(s)G(s) = f~-. (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.
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