Q1 (A): Sketch the Nyquist plot of the unity feedback system that shown in figure (1). Is the close loop system stable? Find the Gain Margin (GM). 120 R(s) C(s) G(s) = G(s) s(s+2)(s+3) Figure (1) Q1 (B): For G(s) = 10(s² +15 s+56) s3-2s²+s-2 Find LG(jw) for w= = [0.1 1 10 100 1000] "

Q1 (A): Sketch the Nyquist plot of the unity feedback system that shown in figure (1). Is the close loop system stable? Find the Gain Margin (GM). 120 R(s) C(s) G(s) = G(s) s(s+2)(s+3) Figure (1) Q1 (B): For G(s) = 10(s² +15 s+56) s3-2s²+s-2 Find LG(jw) for w= = [0.1 1 10 100 1000] "

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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Question

Q1 (A): Sketch the Nyquist plot of the unity feedback system that shown in figure (1). Is the
close loop system stable? Find the Gain Margin (GM).
R(s)
C(s)
G(s) =
=
120
s(s+2)(s+3)
G(s)
Figure (1)
10(s² +15 s+56)
Q1 (B): For G(s) =
=
Find ZG (jw) for w = [0.1 1 10 100 1000]
"
s3-2s²+s-2

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