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Electronics and Computer Science➞Undergraduate

FPProvisional000010 ELEC3 - USMC3216 Advanced Electrical and Electronic Systems

Module Overview

This module focuses on how to create real electronic systems. It covers 'building block' circuits using biplolar transistors and FETs, and looks at the use and operation of op-amps. It also covers how to deliver timing in circuits, interfacing in mixed-signal electronic systems (using ADCs and DACs), and filters. It also looks at how to provide power to systems, and interface with sensors.

Aims & Objectives

Aims

Knowledge and Understanding

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

  • Demonstrate understanding of circuit analysis for bipolar and MOS circuits. Demonstrate knowledge and understanding of the requirements for and operation of sensor interface circuits, power supplies, data converters and oscillators. Understand the key concepts of feedback in electronic circuits. Understand the concepts of filter design, and be able to demonstrate knowledge and understanding of how to design a simple filter using operational amplifiers

Subject Specific Intellectual

Having successfully completed this module, you will be able to:

  • Apply key circuit analysis theory to allow the abstraction of problems. Use feedback in circuit design and explain its importance. Apply filter design methods to design simple filters. Derive circuits for sensor interface circuits and oscillators. Use simulation to investigate a range of problems related to electronic circuits. Interpret datasheets and use them to aid the design of systems

Transferable and Generic

Having successfully completed this module, you will be able to:

  • Record and report laboratory work. Define problems in standard form to allow standard solutions

Subject Specific Practical

Having successfully completed this module, you will be able to:

  • Analyse simple circuits containing active elements such as bipolar and MOS transistors, and Op-amps. Appreciate the practical limitations of such devices. Apply links between mathematical concepts to a range of engineering problems

Syllabus

Transistor Modelling and Circuits

  • Ebers Moll Model for the bipolar transistor and its modifications.
  • Hybrid pi model and high frequency effects.
  • SPICE parameters for bipolar transistors.
  • Common emitter, common base and common collector amplifiers.
  • Bode Diagram, Bandwidth, low and high frequency effects.
  • Miller effect
  • Amplifier design.
  • Differential pair.

Operational Amplifiers

  • Design and properties of simple op amps
  • Effect of feedback network on BW.  Closed loop and open loop Gain and BW with feedback.  Interaction with internal pole of op-amp.  Stability
  • Limitations of real op amps
    • Slew rate
    • Input and output range
    • Offset voltage and current
    • Noise sources

Timing

  • Why timing is important
  • Ring oscillators
  • Relaxation oscillators and 555 timers
  • Voltage-controlled oscillators
  • Frequency references – principles of quartz crystal as a frequency reference, use of dividers for different frequencies, integration of crystal oscillator into circuits

Data Conversion

  • Basic specs of converters: inc. sample rate (relation to Nyquist) linearity, resolution (relation to SNR)
  • Introduction to Analogue-to-Digital Conversion
    • Sample and Hold, analogue multiplexing
    • Anti-alias filter requirements.
    • Topologies: Successive Approximation, Dual Slope, Binary Weighted
  • Introduction to Digital-to-Analogue Conversion
    • Properties of DACs
    • R/2R ladder topology
    • The need for reconstruction filters

Filters

  • Butterworth design using Sallen-Key circuit
  • Introduction to HF passive filters:  Passive lumped element filters; SAW and ceramic filters

Sensor Interfacing

  • Resistive-output sensors
  • Bridge circuits
  • Differential amplifiers

Power supplies

  • Transformers and rectification
  • Linear regulators
  • Switching regulator types

System Considerations

  • System-level stability: decoupling, ground loops
  • Basics of EMC and screening
  • Examples of complete electronic systems

Learning & Teaching

Learning & teaching methods

  • Lecture - 36 hours per semester
  • Tutorial - 12 hours per semester
  • Specialist Lab - 6 hours per semester

Assessment

Assessment methods

MethodHoursPercentage contribution
Feedback amplifier-5%%
Active filter-5%%
Design task -10%%
In class test-5%%
Exam2 hours75%

Referral Method: By examination

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