Question: E9.19 A unity feedback system with G s c ( ) = K has e-0.12s G(s) = (s+15) Select a gain K so that the

E9.19 A unity feedback system with G s c( ) = K has

e-0.12s G(s) = (s+15) Select a gain K so that the phase

e-0.12s G(s) = (s+15) Select a gain K so that the phase margin of the system is P.M. = 40. Determine the gain margin for the se- lected gain, K.

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