(a) Using the Routh-Hurwitz crition, determine if the following systems are stable or unstable, and how many roots lie i

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A Using The Routh Hurwitz Crition Determine If The Following Systems Are Stable Or Unstable And How Many Roots Lie I 1 (42.44 KiB) Viewed 37 times

(a) Using the Routh-Hurwitz crition, determine if the following systems are stable or unstable, and how many roots lie in the left-hand plane of the s-plane diagram. (0) 53 +252 + 6 T(S) = $5 +683 + 5s2 + 8s + 20 (ii) T(s) 1 2s2 +593 +52 + 2s + 1 (10 ma (b) For the negative closed loop feedback system with an open loop gain G(s) and a feedback gain H(s) = 1, where (s -a) G(s) = K - s(s+b) determine the range of values for the gain K when (i) a < 0 and b < 0, and (ii) a> 0 and b > 0.