Electrical Motor Controls for Integrated Systems
5th Edition
ISBN: 9780826912268
Author: Gary Rockis;Glen A. Mazur
Publisher: American Technical Publishers
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Chapter 22.2, Problem 1CP
To determine
To explain: The reason for an op-amp being better for amplifying a very small signal to a large signal than using a transistor amplifier.
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2. Using Routh Hurwitz criterion, determine the stability of a system whose transfer
function is given by the following.
10
H(s) =
s5+2s4+3s3+6s²+5s+3
4. Consider a unity (negative) feedback control system whose open-loop transfer
function is given by the following.
1
G(s):
s³ (s + 2)
What is the steady state error of the system for input u(t) = t³ 1(t)?
Recall from the class lecture that steady-state error is given by the following formula.
S
ess = lim
S-01 + G(s)
U(s)
5. Answer the following questions. Take help from ChatGPT to answer these questions
(if you need). But write the answers briefly using your own words with no more than
two sentences and make sure you check whether ChatGPT is giving you the
appropriate answers in the context of class.
a) What is BIBO stability?
b) What is internal stability? What is the difference between strict internal stability
and marginal internal stability?
c) When is the Routh-Hurwitz criterion especially useful?
d) Do the zeros of a transfer function have any impact on stability?
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Electrical Motor Controls for Integrated Systems
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