Problem 5 (20%) An operational amplifier in Fig. 6 is used to implement a PID controller Given R2=5 kQΩ and C2=1 pF, determine the required values R1and C1.

(b) (6%) Suppose that the Nyquist plot (K＞0) in part (a) is depicted in Fig. 3, and it has an intersection with axis Re(L(s) at K. Using Nyquist criterion and Fig. 3, determine the range of K ＜O such that the closed-loop system is stable. If the system is unstable due to the range of K, find the number of closed-loop pole(s) in the right-half of s-plane.

Problem 5 (20%) An operational amplifier in Fig. 6 is used to implement a PID controller

Given R₂=5 kQΩ and C₂=1 pF, determine the required values R₁and C₁.

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