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CHRIST (DEEMED TO BE UNIVERSITY),BENGALURU - 560029
End Semester Examination March - 2018
Bachelor of Technology IV SEMESTER
Code: EE434 Max.Marks: 100
Subject: CONTROL SYSTEMS Duration: 3Hrs
SECTIONA
Assume missing data and needful data appropriately. 5X20=100
1a) List and explain the features of data acquisition system by considering any one
commercial product as an example.[6]
b) List and explain at least seven application of data acquisition in control system.
4]
[OR]
2 Explain the following control componeiits,
a) Microcontrollers [5]
b) Programmable Logic controllef(5]
c) Relay and Contactors [5]
4) Operational amplifier [5]
Xx(s)
Solve for the transfer function, a for the following system. Find poles and zeros
of the circuit. Mark poles aiid zeros-ifrs-plane by assuming
Ky, M1, Ky, M2 and Kg Consider, fu. fo and fy; as damper constants.
n@ x0)
hy
fo)
[oR]
4 Determine the transfer function for the following electrical circuit where v(t) is
input and ig() is output. Find poles and zeros of the circuit. Mark poles and zeros in
s-plane. Convert the transfer function into state space.
R Ry
N\
wot \€ Vex
= ) L COR el)
5 Construct root locus for single phase induction machine with cascaded gain and
unity feedback for the control action. Assume physical parameters of the system.
[oR]
6 Plot the Nyquist diagram and use Nyquist diagram to find the range of gain, K, for
stability,
, K
OO) = Ger HES)
7 Show that the integral controller eliminated the steady-state error for the system,
G(s)=
[OR] 10
a) Explain the characteristics of P I and D controller on the plant[10]
b) List and explain five applications of PID controllers.[10]
a) Derive the solution of non-homogeneous system by Laplace transform approach.
(8]
b) Determine the solution of the following state model.{12]
[4 Alef
[oR]
a) Derive the state space model from transfer function.[6]
b) Derive transfer function from state space model.{6]
c) Find the transfer function and state space model of series R-L-C circuit [8]
