Department of Electrical and Computer Engineering University of Massachusetts Lowell EECE 4130 Test Two I. Consider the unity gain negative feedback system having the open-loop gain GH = K(s + 4)I(s(s +2)(s +1)). a. Determine the real-line root locus of ...
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2.The open loop transfer function G(S)= ,,,, and feedback gain H(s)=4s +K are given the negative feedback system a. Determine the characteristic equation of the closed – loop system. b. Determine the conditions on K for stability.
3. Consider the system with closed-loop transfer function H(s)= s2 4 4 +2s+4(s+i+i)(s+1—A a. Using contour integration evaluate the time response of the system given the input is equal to x(t) = tr(t). Denote the contour used in your answer. ...
4. Consider the unity gain negative feedback system where the open-loop transfer function is A(s) = H(s)101(s(s + 2)(s + 5)). a. Given that X(s) is the input signal and Y(s) is the output signal determine Y (s)IX(s) in terms ...