Undergraduate Course: Analogue Electronics (Circuits) 4 (ELEE10020)
|School||School of Engineering
||College||College of Science and Engineering
|Credit level (Normal year taken)||SCQF Level 10 (Year 4 Undergraduate)
||Availability||Available to all students
|Summary||This course introduces students to the important analogue circuits of active filters, sine wave oscillators, relaxation oscillators, switched capacitor circuits and phase-locked loops. The aim is to present and instil the principles of circuit operation and the essential circuit analysis and design techniques to enable students to understand and design the simpler variants of the above circuits and to be capable of extending their understanding to more complex variants.
L1 Introduction and Overview
1st and 2nd order transfer functions
L2 Filter sections
Active 1st order section. Sallen-Key low pass sections and transfer function
L3 Butterworth Approximation
Butterworth transfer function, magnitude characteristic, pole-zero diagram, derivation of Butterworth polynomial from pole locations. Order of Butterworth.
L4 Butterworth low pass
Synthesis of Butterworth low pass filters from specification.
L5 Chebyshev Approximation 1
Transfer function, magnitude characteristic, order of Chebyshev, Chebyshev features.
L6 Chebyshev Approximation 2
Denormalising Chebyshev low pass. Chebyshev synthesis.
L7 Filter Comparison and High Pass
Comparison of Butterworth, Chebyshev and Bessel. High pass transform.
L8 Sensitivity Analysis
Introduction to band pass and band stop. Sensitivity analysis of filter sections to passive components. Effects of op-amp imperfections.
Oscillators and Waveform Generators
L9 Sine wave oscillators 1
Barkhausen Criterion. Phase shift oscillator, Wien Bridge oscillator.
L1 Sine wave oscillators 2
Amplitude control, Colpitts, Hartley, Clapp, Pierce oscillators.
L11 Sine wave oscillators 3
Sensitivity to active device parasitics and variations. Regenerative comparator.
L12 Waveform Generators 1
Simple relaxation oscillator, Triangle wave generator.
L13 Waveform Generators 2
Sawtooth wave generator, Voltage-controlled oscillator.
L14 Switched-cap 1
Switched capacitor circuit as a replacement for a resistor, first order analysis
L15 Switched-cap 2
Full SC analysis in z-plane, design of SC active filters
L16 Switched-cap 3
Stray-insensitive SC circuits, biquad in SC form
Analogue multipliers, Gilbert multiplier Linear phase detectors, XOR gate as a phase detector
PLL System diagram, noting that the VCO acts as an integrating element. First order PLLs.
Second order PLL, discussion. Lead-lag loop filter.
One per teaching week.
Entry Requirements (not applicable to Visiting Students)
||Other requirements|| None
Information for Visiting Students
|Pre-requisites||Students should be familiar with basic concepts in analogue electronics, such as op-amp circuits, the use of feedback, circuit analysis and the operation of MOSFETs and BJTs.
|High Demand Course?
Course Delivery Information
|Academic year 2019/20, Available to all students (SV1)
|Learning and Teaching activities (Further Info)
Lecture Hours 22,
Seminar/Tutorial Hours 11,
Formative Assessment Hours 1,
Summative Assessment Hours 2,
Programme Level Learning and Teaching Hours 2,
Directed Learning and Independent Learning Hours
|Assessment (Further Info)
|Additional Information (Assessment)
||Assessment will be based on a single written paper of 120 minutes duration.
||Hours & Minutes
|Main Exam Diet S2 (April/May)||2:00|
On completion of this course, the student will be able to:
- Demonstrate and work with a full knowledge and understanding of the principles, terminology and conventions of analogue circuits, especially active filter circuits, oscillator circuits, switched capacitor circuits and Phase-Locked Loops (PLL).
- Use a wide range of prior knowledge (including algebraic manipulation, calculus, nodal analysis, Laplace Transforms, operational amplifier circuits, feedback, bode plots, pole/zero analysis) to analyse and design circuits in the categories given in 1 above, and to apply them to different filter sections, sine wave oscillators, relaxation oscillators, multiplier circuits, phase detector circuits, and sub-circuits that may be used in such circuits.
- Analyse, specify, conceptualise and synthesise systems and applications that require the use of the circuits in 1 and 2 above, including some that were previously unknown.
- Understand, and be able to analyse and mitigate, the effect of component tolerances on the performance of the circuits in 1 and 2, including the ability to select appropriate component values and types to achieve a specification.
"Integrated Electronics", J. Millman & C.C. Halkias (McGraw-Hill, 1972, ISBN 0-07-Y85493-9)
"Active Filter Design", A. Waters, MacMillan, 1991, ISBN 0-333-48862-8. Sadly this is out of print and there is only a single copy in the Robertson library. It is short and very good on the filters material.
"Modern Communication Circuits", J Smith, McGraw-Hill, 0-07-058730-2
"Electronic Communication Techniques", P H Young, Merrill, 0-02-431201-0
"Phase-Lock Basics", W F Egan, Wiley, 0-471-24261-6. This is very good on PLLs only.
|Graduate Attributes and Skills
|Course organiser||Dr Les Haworth
Tel: (0131 6)50 5624
|Course secretary||Mrs Megan Inch-Kellingray
Tel: (0131 6)51 7079