Question

L(s)=Gc(s)G(s)=K(s+8) /s2

Answer 1

Answer:

A closed-loop system has a loop transfer function:

L(s) = Gc(s)G(s) = K / (s(s + 8)(s + 12))

1. Determine the gain K so that the phase margin is 60 degree.

2. For the gain K selected in part (a) determine the gain margin of the system.

Explanation:

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