Ex. 1472. The plant of a magnetic-gap controller is: Gp(s)=1/((s+f)(s-f)). A controller Gc(s)=K(s+b)(s+c)/s is proposed. Determine the gain K for marginal stability. b=0.50, c=101.00, f=61.30. Determine the gain K for CLGM=10.8 dB. Gp & Gs are in the forward path of unity feedback sys. ans:2

Open-loop transfer function Go) = KCs+4) sca+2)(st5) The open-loop pales are pele 0,-2,-5 and 'the open-loop zepir-4 The number of Sketch the roat-locas systemy the informatiere derived in Hi) and comment on the characteristics of thir 2ystem for different values Keg for small K and larger values of K. 1Oseful to koow that the equation g3 tQ.5s²+2&=+ 20= has the solutiOns X= -4, 23 +1.146

Ex. 1472. The plant of a magnetic-gap controller  is: Gp(s)=1/((s+f)(s-f)).     A controller Gc(s)=K(s+b)(s+c)/s is proposed.  Determine the gain K for     marginal stability. b=0.70, c=102.00, f=68.20.  Determine the gain K for     CLGM=10.4 dB. Gp & Gs are in the forward path of unity feedback sys. ans:2

9.1. Determine measures of performance in time-domain specification: a) percent overshoot, b) settling time with +/-5% tolerance, c) time to first peak, d) time to rise, e) delay time, f) oscillations period, and g) steady-state tracking error from data on figure below. 9.2. Identify the dynamics in terms of transfer function with estimated parameters. 3.928 0.5 2.72 2.5 2 1.5 3.5 3 output A input LS