General Electronics (CSCT2104)
Computer Science - COS
Semester: First Semester
Level: 200
Year: 2015
1
SCHOOL: H.T.T.T.C DEPARTEMENT: CS LECTURER: Dr. DADA Jean-Pierre
COURSE CODE: CS412 COURSE TITLE: Gneral electronics
OPTION: FCS DATE: September, 2015 HALL: TIME: 1:30 NATURE: Resit
Instructions:…… NA…………..
Exercise 1: Let us consider the circuit below:
The capacitors have capacitances as high values as possible to neglect their effect in alternative current. The
generator of direct current has its internal resistor null. The transistor has as characteristics: ,
= 500r
,
100=
Also,
= kR 1
1
,
= kR
C
1
et
= kR
u
1
.
a) What type of electric circuit is this?
b) Give the role of
CC
V
c) By applying Kirchhoff’s laws, write all functioning equations
d) Give the formula of the voltage amplification
e) Give the formula of the current amplification
f) Give the formula of the entry and the output resistances
Exercise 2: 1) With operational amplifier, draw an electronic circuit, able to solve the differential equation
2) Identify all resistors which can be taken as potentiometers (variable resistors).
Exercise 2: Let us consider the circuit below:
a) Write the characteristic equations
b) Write the formula describing the amplification of the
circuit
c) What name can you give to this circuit?
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