Q5) Sketch the step response for the following open loop transfer function. (10 marks) Z = (z) (z - 0.6)^2 + 0.62
Natural frequency and damping loci in z-plane
3/5T
Wh = /2T
2/5
0.8
7/10T
101
0.6
4/5T
0.4
9/10T
0.2
Wn = I/T
E
0.9: -0.8
0.2
0.4
0.3 0.2 = 0.1.
0.6
= 0
0.8
0.8
0.6
0.4
0.2
0 0.2 Re(z)
0.4
0.6
80
1