Question: P8.27 A unity feedback system has the loop transfer function Sketch the Bode plot of the loop transfer function, and indicate how the magnitude 20

P8.27 A unity feedback system has the loop transfer function

L(s) = G(s)G(s) = K(s+30) s + 16s+256

Sketch the Bode plot of the loop transfer function, and indicate how the magnitude 20 log L j ( ) ω plot var

ies as K varies. Develop a table for = 10, 20, and 30, and for each K determine the crossover frequency

( ω ω for 20 log L j ( ) = 0 dB), the magnitude at low frequency (20 log L j ( ) ω ω for 1), and for the closed-loop system determine the bandwidth for each K.

L(s) = G(s)G(s) = K(s+30) s + 16s+256

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