Automation (Feedback Systems) (CSC227)
Computer Science - COS
Semester: Resit
Level: 300
Year: 2018
Page 1 sur 1
DEPARTMENT OF COMPUTER SCIENCE
LEVEL II
CSC227: AUTOMATION (feedback system) SEPTEMBER 2018 SESSION
Course instructor: M. TCHAHOU TCHENDJEU DURATION: 1HOURS
Exercise 1:
The Laplace transform F(p) of a signal f(t) is defined by the integral
.
Calculate the Laplace transform of the following functions.
Exercise 2:
Let consider a field-control DC motor of figure 1.
Figure 1
1) Give the expression of the torque generated by the motor, knowing the armature
current is kept constant and the differential equation describing the angular speed of
the shaft,
2) Give the differential equation describing the current in the field circuit,
3) Using the Laplace transform, deduce the transfer function and draw the block diagram
of field-controlled dc motor.
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