A feedback control system has the following transfer functions: Ge = Kc G, = 1/(4s+1) G,...

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A feedback control system has the following transfer functions: Ge = Kc G, = 1/(4s+1) G, = Ga = 1/(6s+1) Gm = 1/(2s+1) %3D It is predicted that this closed-loop control system will be unstable as controller gain (Kc) becomes toc large. Derive an expression for the closed-loop transfer function for this system, for a step change in set point Ysp(s) = 1/s. A feedback control system has the following transfer functions: Ge = Kc G, = 1/(4s+1) G, = Ga = 1/(6s+1) Gm = 1/(2s+1) %3D It is predicted that this closed-loop control system will be unstable as controller gain (Kc) becomes toc large. Derive an expression for the closed-loop transfer function for this system, for a step change in set point Ysp(s) = 1/s.