The University of Southampton
Courses

# ELEC1207 Electronic Systems

## Module Overview

### Aims and Objectives

#### Learning Outcomes

##### Knowledge and Understanding

Having successfully completed this module, you will be able to demonstrate knowledge and understanding of:

• Demonstrate knowledge and understanding of the operation of bipolar, field effect transistors, and op-amps
• Understand the key concepts of modern communications and their application in communication systems
• Understand the concepts of transfer functions, block diagrams, poles and zeros and simple feedback systems
##### Subject Specific Intellectual and Research Skills

Having successfully completed this module you will be able to:

• Apply key network theory to allow the abstraction of problems
• Appreciate the importance of linearising systems, and the use of linear models
• Determine the transfer function and step response for a system of any order
• Derive transfer functions for mechatronic and electromechanical systems
• Use Matlab to investigate a range of problems related to electronic circuits
• Meet this module's contribution to the subject specific intellectual learning outcomes of ELEC1029
##### Transferable and Generic Skills

Having successfully completed this module you will be able to:

• Record and report laboratory work
• Understand the principles of defining problems in standard form to allow standard solutions
• Meet this module's contribution to the transferable and generic learning outcomes of ELEC1029
##### Subject Specific Practical Skills

Having successfully completed this module you will be able to:

• Analyse simple circuits containing active elements such as bipolar transistors, FETs and Opamps
• Appreciate the practical limitations of such devices
• Understand the links between mathematical concepts and be able to apply them to a range of engineering problems
• Meet this module's contribution to the subject specific practical learning outcomes of ELEC1029

### Syllabus

MESH AND NODAL ANALYSIS - Mesh analysis for circuits with voltage sources and resistors - Matrix notation for mesh equations - Gaussian elimination - Nodal analysis for circuits with current sources and resistors - Analysis of circuits with both current and voltage sources DEPENDENT SOURCES - Types of dependent source - The operational amplifier and bipolar transistors as applications of dependent sources - Mesh and nodal analysis with dependent sources - Superposition with dependent sources THEVENIN AND NORTON THEOREMS - Thevenin's theorem - Source transformation - Thevenin's theorem with dependent sources - Norton's theorem - Analysis of ladder networks STAR–Δ TRANSFORMATION FETs - JFETs and MOSFETs - Large signal characteristics (FET and Bipolar) - Enhancement and depletion devices - Power MOSFETs - Analogue Switches - MOS Invertors SMALL-SOGNAL ANALYSIS OF TRANSISTOR (FET AND BIPOLAR) CIRCUITS - Small-signal approximation - Common emitter amplifier: DC and AC analysis - Voltage, current and power gain - Common collector amplifier: analysis and mode of operation - Application to FETs (Common source, common drain) OPERATIONAL AMPLIFIER CIRCUITS - Linear op amp circuits: inverting/non-inverting amplifier, adder, subtractor, voltage follower - Buffers, cascading - Schmitt trigger, precision diode - Introduction to frequency dependence, integrator COMMUNICATIONS - Effect of harmonics on shape of a waveform, e.g. building up edges. - Effect of the phase of harmonics, e.g. phase of 3rd harmonic moves edges, changes P-P. - Square, triangular and sawtooth waves, effect of waveform symmetry on harmonics. - Truncated sine waves, e.g. saturation, triac control. - Differentiation and integration, effect on harmonic amplitudes, fall-off of higher order harmonics. - Nyquist sampling rate - Modulation to convey information, AM spectrum, linear superposition, effect of sideband - Phases on amplitude variation (cf NBFM). - Suppressed carrier, SSB to improve power and spectrum efficiency. - Digital modulation: ASK, FSK, QAM - Mention of radio: antennas, propagation (emphasise 500MHz...5GHz), path loss (dB), radar CONTROL - Linear Time Invariant Systems and Ordinary Differential Equations - An alternative approach to time-based analysis - Transfer Functions, Poles, Zeroes and the Characteristic Equation - Block Diagram Notation - Standard Inputs and System Response

### Learning and Teaching

TypeHours
Revision10
Follow-up work18
Lecture36
Preparation for scheduled sessions18
Tutorial12
Total study time150

Dorf R C, Svoboda J A (2006). Introduction to Electric Circuits.

I.Otung (2001). Communication Engineering Principles.

Price, T. E (1997). Analog Electronics - An Integrated PSpice Approach.

### Assessment

#### Assessment Strategy

These technical labs consider Amplifier Input/Output Impedances and Loading Effects, Modulation and Demodulation, as well as Operational Amplifiers, addressing the above-listed learning outcomes. They are conducted under the umbrella of ELEC1029 but the marks contribute towards this module. Skills labs are conducted under the umbrella of the zero-credit ELEC1029 module and address its learning outcomes. The marks contribute to a number of ELEC12xx modules, including this one.

#### Summative

MethodPercentage contribution
Continuous Assessment 30%
Final Assessment  70%

#### Repeat

MethodPercentage contribution