Download Phys204(Electronics). - University of Belize

University of Belize
Course Outline
Course Number:
Course Name:
Text:
Resources:
Prerequisites:
Co-requisites:
PHYS204
Electronics
Advanced Level Physics-Michael Nelkon & Phillip Parker
http://www.ecaliz.com, UB library
PHYS201, PHYS203 or their equivalent
PHYS206 (Lab)
Course description (3 credits):
This three credit course, required of all physics majors, introduces students to the technology
which permeates every aspect of our modern life. They will be exposed to the basic theories,
principles and practices which govern the behavior of electronic equipment. Students will create
and test specific electronic circuits designed to carry out very specific functions. Analysis of
circuit diagrams will build student familiarity with electronic technology. Telecommunication is
also introduced in this course. Students will be exposed to the principles of modulation, the
digital transmission of information, and radio communication.
Course Objectives:
Upon successful completion of Phys 204 students will be able to:
1.
The p-n Junction
1.1. describe the electrical properties of semiconductors and distinguish between p-type
and n-type material;
1.2. explain the formation of a depletion layer at a p-n junction;
1.3. discuss the flow of current when the p-n junction diode is forward-biased or reversebiased;
1.4. discuss the I-V characteristic of the p-n junction diode.
1.5. use the diode for half-wave rectification;
1.6. use the bridge rectifier (4 diodes) for full-wave rectification;
1.7. represent half-wave and full-wave rectification graphically;
1.8. discuss the use of a capacitor for smoothing a rectified ac wave.
2.
Transducers
2.1. explain the operation of the light-dependent resistor (LDR), the thermistor and the
microphone as input devices to generate voltages;
2.2. explain the operation of the light-emitting diode (LED), the buzzer, the speaker and
the relay as output devices.
3.
Operational Amplifiers
3.1. describe the properties of the ideal operational amplifier;
1
3.2.
3.3.
3.4.
3.5.
3.6.
3.7.
3.8.
3.9.
3.10.
3.11.
3.12.
3.13.
3.14.
3.15.
3.16.
3.17.
3.18.
3.19.
compare the properties of the typical and the ideal operational amplifier;
use the operational amplifier as a comparator;
use the fact that the magnitude of the output voltage cannot exceed that of the power
supply;
discuss the effect of positive and negative feedback in an amplifier;
explain the meaning of gain and bandwidth of an amplifier;
explain the gain-frequency curve for a typical operational amplifier;
determine the bandwidth from a gain-frequency curve;
draw the circuit diagram for both the inverting and non-inverting amplifier with a
single input;
use the concept of virtual earth in the inverting amplifier;
derive and use expressions for the gain of both the inverting and non-inverting
amplifier;
discuss the effect of negative feedback on the gain and bandwidth of an operational
amplifier;
perform calculations related to single-input inverting amplifier circuits;
perform calculations related to single-input non-inverting amplifier circuits;
describe the use of the inverting amplifier as a summing amplifier;
solve problems related to summing amplifier circuits;
describe the use of the operational amplifier as a voltage follower;
analyze simple operational amplifier circuits;
analyze the response of amplifier circuits to input signals, using timing diagrams.
4.
Logic Gates
4.1. Describe the function of the following logic gates: NOT, AND, NAND, OR, NOR,
EXOR, EXNOR;
4.2. use truth tables to represent the function of logic gates with no more than two inputs;
4.3. analyze circuits using combinations of logic gates to perform control functions;
4.4. construct and interpret truth tables for a combination of logic gates;
4.5. use V-t diagrams to represent the response of digital circuits to different input
signals;
4.6. explain the operation of the half-adder;
4.7. perform calculations involving oscillating systems;
4.8. explain the operation of a flip-flop consisting of two NAND gates or two NOR gates;
4.9. discuss the application of digital systems in the home and in industry.
5.
Communication Principles
5.1. recall that any waveform can be resolved into or synthesized from sinusoidal
components;
5.2. understand the term modulation and distinguish between amplitude modulation
(AM) and frequency modulation (FM);
5.3. recall that a carrier wave, amplitude modulated by a single audio frequency, is
equivalent to the carrier wave frequency together with two sideband frequencies,
leading to an understanding of the term bandwidth;
2
5.4.
5.5.
5.6.
5.7.
5.8.
5.9.
demonstrate awareness of the relative advantages of FM and AM transmissions.
recall the advantages of transmission of data in digital form;
understand that the digital transmission of speech or music involves analogue-todigital conversion and digital-to-analog conversion on reception;
demonstrate an awareness of how waveforms are encoded by digital sampling;
appreciate the advantages of fibre optic transmission compared with meta cable and
radio transmission;
demonstrate an awareness of social, economic and technological changes arising
from modern communication methods.
6.
Communication Channels
6.1. appreciate that information may be carried by a number of different channels,
including wire-pairs, coaxial cables, radio and microwave links, and optic fibres;
6.2. discuss the relative advantages and disadvantages of channels of communication in
terms of available bandwidth, noise, cross-linking, security, signal attenuation,
repeaters and regeneration, cost and convenience;
6.3. understand and use signal attenuation expressed in dB per unit length;
6.4. understand and use repeater gain measured in dB;
6.5. estimate and use typical power levels and attenuations associated with different
channels of communication.
7.
Radio Communication
7.1. appreciate the effect of the Earth’s surface on the propagation of radio waves over
long distances, and use the ionosphere as a reflector if the waves are to be
propagated over long distances.
7.2. describe the use of satellites in radio communication and appreciate the importance
of geostationary satellites.
7.3. recall the wavelengths used in different modes of radio communication.
In general a student should be prepared to answer questions and solve problems regarding the
topics mentioned above.
Evaluation:
Assignments
Quizzes
Tests
Final Exam
10%
15%
35%
40%
Late assignments will not be accepted.
Quizzes will be administered daily.
7 tests (one per topic) will be administered for the semester.
Cumulative
Grading: Consistent with UB Grading scheme.
Course Policies
1. Students must attend all classes and be on time. Failure to do so will affect their grades
negatively.
2. Students need to be in possession of an electronic calculator and at least a basic geometry
set.
3
3. Students will be given assignments. Failure to carry out said assignments will negatively
affect their grades.
4. All cellular phones must be turned off.
5. Academic dishonesty will not be tolerated.
Note: Your instructor reserves the right to make changes as the semester progresses. Students
will be advised of such changes in a timely fashion.
4