5.10. ILLUSTRATIVE PROBLEMS AND SOLUTIONS
This section provides a set of illustrative problems and their solutions to supplement the material presented in Chapter 5.
I5.l. The control system of Figure I5.1 contains position and rate feedback:
(a) Determine the closed-loop transfer function C(s)/R(s).
(b) Determine the sensitivity of the closed-loop transfer function to K2 as a function of s.
(c) Determine the sensitivity of the closed-loop transfer function to K2 at dc.
SOLUTION:(a)
(b)
where
Therefore,
(c)
I5.2. The sensitivity of the following control systems is to be analyzed:
(a) Determine the overall transfer function, H = C(s)/R(s).
(b) Determine the sensitivity of the control system’s transfer function, H(s) = C(s)/R(s) with respect to the transfer ...
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