Analogue Circuit Design
Computer Science and Electronic Engineering (School of)
Undergraduate: Level 5
Monday 13 January 2020
Friday 26 June 2020
08 May 2019
Requisites for this module
BENGH610DA Electronic Engineering
The module incorporates two major themes: The first is the circuit orientated theme aiming to engender both an intuitive understanding of simple circuit design and functionality.
The second focuses on the more formal analysis and computer simulation techniques using equivalent circuit transistor models where key skills in numeracy and circuit simulation are developed and then used in the design, simulation and construction of oscillator circuits. The module is supported by laboratory-based assignments that investigate small signal amplifiers, and voltage-controlled oscillator design and applications.
This module aims to develop an in-depth understanding of analogue systems and circuit techniques from a design process perspective.
On completion of this module, students will be expected to be able to:
1. Derive ac-equivalent models from transistor terminal behaviour as an aid to small-signal analysis and as a design aid for small-signal audio amplifiers and linear oscillators.
2. Understand the design process and system requirements and apply these in the design of single-stage transistor amplifiers, basic operational amplifier circuits, and power supplies.
3. Use CAD tools such as MultiSIM to perform circuit-level simulations.
4. Implement, test and evaluate practical design solutions and communicate the methodology, results and conclusions in both written and oral form.
Basic Electronic Circuits:
Half-wave and full wave rectification
Capacitive smoothing filters
Zener regulated power supply
Series and shunt regulators
DC to AC power inverters-very important these days
Transistor Bias Circuits:
Choice of DC operating point
Constant current base bias circuit
Effect of temperature and variation with base bias
Voltage-divider bias-Effect of temperature and variation with voltage-divider bias
Collector feedback bias
Effect of temperature and variation with collector feedback bias
Use of nearest preferred values in the design process
Coping with power supply noise
Low-frequency (Audio) Amplifiers:
Single-Stage Transistor Amplifiers:
Simple small-signal model
Effect of source and load resistance
Shunt and series feedback
Common-collector (emitter follower) amplifier
Low-frequency amplifier response
Single-stage bootstrap-bias amplifier
Operational Amplifiers Fundamentals:
Differential single-stage amplifier
Operational Amplifier parameters
Common-mode rejection ratio (CMRR)
Negative feedback, closed-loop gain and bandwidth
FET input op amps.
Effects of negative feedback on input and output resistances
DC offsets, bias current and offset voltage compensation
Inverting amplifier (virtual-earth amplifier)
Amplitude and slew rate limiting
Open-loop and closed-loop frequency response
Rise time and bandwidth relationship
Operational Amplifier Circuits:
Comparator with hysteresis, effect of noise
Flash analogue-to-digital converter (ADC)
Summing amplifier, difference amplifier
Integrator and differentiator
Example linear low-pass filter using Sallen and Key Topology
RC, LC and Wien bridge oscillator configurations
Frequency stability and amplitude stabilization
Relaxation oscillators (555 timer device)
Voltage-controlled oscillator (VCO) designs and their application in phase locked loops.
Lectures, Classes and Labs
This module does not appear to have any essential texts. To see non-essential items, please refer to the module's reading list.
Assessment items, weightings and deadlines
|Coursework / exam
||Progress Test - Wk 22
||Assignment 1 Amplifier Design (Hardware lab experiment)
||Assignment 2 Voltage controlled oscillators and phase locked loop (hardware lab experiment)
||120 minutes during Summer (Main Period) (Main)
Module supervisor and teaching staff
Dr Faiyaz Doctor
School Office, email: csee-schooloffice (non-Essex users should add @essex.ac.uk to create full e-mail address), Telephone 01206 872770
Dr Robert John Watson
University of Bath
Available via Moodle
Of 56 hours, 27 (48.2%) hours available to students:
29 hours not recorded due to service coverage or fault;
0 hours not recorded due to opt-out by lecturer(s).
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