Question: E9.31 A closed-loop feedback system is shown in Figure E9.31. Sketch the Bode plot and determine the phase margin. R(s) 1 2s(s+2) 4 1+ 1

E9.31 A closed-loop feedback system is shown in Figure E9.31. Sketch the Bode plot and determine the phase margin.

R(s) 1 2s(s+2) 4 1+ 1 S FIGURE E9.31 Nonunity feedback system.

R(s) 1 2s(s+2) 4 1+ 1 S FIGURE E9.31 Nonunity feedback system. Y(s)

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