## SIGNALS AND ELECTRONIC SYSTEMS

 SHE Level 2 SCQF Credit Points 20.00 ECTS Credit Points 10.00 Module Code M2H020497 Module Leader Carlos Gamio-Roffe School School of Computing, Engineering and Built Environment Subject Electronic Engineering Trimester B (January start)

### Pre-Requisite Knowledge

Mathematics 1 (M1G108778), Electrical Principles and Circuit Theory (or equivalent)

### Summary of Content

The aim of this module is to provide students with a strong foundation and understanding of the concepts and principles of electronic circuits and systems and electronic circuit design techniques. An understanding of the limitations of practical electronic systems and the means of evaluating the performance of electronic systems is provided. Emphasis is also made on testing and evaluating designed electronic systems in relation to design specifications in order to provide ethical "fit for purpose" qualifications.

### Syllabus

SIGNALS AND NOISE Introduction to Signal Theory and Analysis Classification of Signals Characteristics of Periodic Signals Frequency and Phase Spectra of Signals Fourier Series of Basic Periodic Signals Concept of Transfer Functions as a System Operator Noise Types Sources of Noise Noise Reduction Techniques FILTER NETWORKS Types of Filters Ideal Filter Responses Filter Order and Response Characteristics Linear Phase Response Comparison of Passive and Active Filter Characteristics Examples of Filter Circuit Design in Practice DIGITAL SAMPLING PROCESS Review of Digital versus Analogue Quantisation and Quantisation Noise Sampling and Nyquist Theorem Anti-aliasing A/D and D/A Conversion Circuitry Examples in Practice of Typical A/D Circuits in Programmable Systems Examples in Practice of Typical D/A Circuits in Programmable Systems AMPLIFIERS Introduction to electronic amplifiers (voltage gain, current gain and power gain) Sources and loads (loading effect) Equivalent circuit of an amplifier Output power (max power theorem) Power gain Types of amplifiers (voltage, current, transimpedance, transconductance) Frequency response and bandwidth Bode plots (amplifier gain and phase and cascaded amplifiers) Differential amplifiers FEEDBACK Introduction Open-loop and closed-loop systems Automatic control systems Feedback systems (open loop gain and closed loop gain) Negative feedback (overcoming variability) The effects of negative feedback (gain, frequency response85etc) OP-AMP An ideal operational amplifier Basic operational amplifier circuits (inverting and non-inverting) Some other useful circuits (current to voltage converter, adder, differential, integrator, differentiator85etc) Real operational amplifiers characteristics: -360 - Voltage gain, CMRR, GBP, frequency response85etc - DC Imperfections on Design (bias current, offset current/voltage, cancellation of bias currents) - Non-linear Limitations (output voltage swing, slew rate limitations) - Evaluation of Limitations to Circuit Design Performance Selecting component values Effects of feedback on op-amp circuits LABORATORY PRACTICE AND USE OF ECAD TOOLS Use MultiSim Tools to Undertake Circuit Design, and Schematic Capture of Circuit Transient and Frequency Analysis. Construct Prototype Test Circuits to Meet Specific Design Specifications Evaluate the Performance and Limitations of Electronic Circuits using Laboratory Test Equipment

### Learning Outcomes

On the completion of this module the student should be able to:-Demonstrate a knowledge and understanding of the fundamental concepts and principles that underpin signals and electronic circuits and systems.Demonstrate an understanding of the application of design techniques to produce practical electronic circuits and systems.Apply appropriate analytical skills, and testing and evaluation strategies to analyse and quantify the behaviour and performance of practical electronic circuit designs.Apply appropriate computer aided design methods in relation to modelling, analysing and evaluating electronic design solutionsDemonstrate an understanding of the need for electronic systems design specifications and the ethical issues associated with designing electronic systems which are fit for purpose.

### Teaching / Learning Strategy

The module is delivered through a combination of lectures, laboratories and tutorials. The emphasis of the lectures is to provide an underpinning of the concepts and principles of electronic systems and electronic design methods. The tutorials focus on problem solving and numerical skills in relation to designing and evaluating suitable electronic circuits and understanding and producing electronic design specifications. The laboratories focus on growing and developing three key skill sets within students: - the use of simulation and analysis tools such as Matlab and MultiSim tools in the design process to simulate and evaluate anticipated electronic systems and signal performance; - the implementation, testing and performance evaluation of practical electronic circuits and signals - the development of both individual and team/group working skills. The latter is achieved specifically through devolving group design specifications where a suitable integrated electronic design is broken into smaller electronic subsystem designs. Individuals students are responsible for designing, testing and evaluating individual subsystems and the group is responsible for testing and evaluating the integrated performance of the complete electronic system in terms of demonstrating that the system is fit for purpose and ethically meets the design specifications. The material covered during lectures and tutorials will be reinforced and consolidated through on-line formative tests which students can take as part of their independent learning and self reflection.

Hambley, A.R., 2000, Electronics, 2 nd ed., Prentice Hall, ISBN 0136919820 Boylestad, R.A. & Nashelsky, 2008, Electronic Devices and Circuit Theory, 10 th Edition, Prentice Hall, ISBN 0135026490 Storey, N., 2009, Electronics: A Systems Approach, 4 th ed., Prentice Hall, ISBN 0273719181 Carter, B. & Mancini, R., 2009, Op Amps for Everyone, 3 rd Edition, Newnes, ISBN 1856175057 Floyd, T., 2012, Electronic Devices, 9th ed., Pearson, ISBN 0-13-254985-9

### Transferrable Skills

D1 Specialist knowledge and application. D2 Critical thinking and problem solving. D3 Critical analysis. D4 Communication skills, written, oral and listening. D5 Numeracy. D6 Effective Information retrieval and research skills. D7 Computer literacy. D8 Self confidence, self discipline & self reliance (independent working). D9 Awareness of strengths and weaknesses. D10 Creativity, innovation & independent thinking. D13 Reliability, integrity, honesty and ethical awareness D15 Ability to prioritise tasks and time management (organising and planning work). D16 Interpersonal skills, team working and leadership. D17 Presentation skills. D18 Commercial awareness

### Module Structure

Activity Total Hours
Practicals (PT) 18.00
Independent Learning (PT) 126.00
Assessment (FT) 20.00
Independent Learning (FT) 120.00
Tutorials (PT) 12.00
Lectures (FT) 24.00
Assessment (PT) 20.00
Lectures (PT) 24.00
Practicals (FT) 24.00
Tutorials (FT) 12.00

### Assessment Methods

Component Duration Weighting Threshold Description
Coursework 1 0.00 30.00 35% Coursework report on electronic circuit design, test and performance evaluation
Exam (Exams Office) 2.00 70.00 35% Design and analytical solving questions