Engineering

ECM3134 - Electronic Engineering Design Studies B (2010)

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MODULE TITLEElectronic Engineering Design Studies B CREDIT VALUE15
MODULE CODEECM3134 MODULE CONVENERProf David Newman (Coordinator), Dr Lesley Wears
DURATION: TERM 1 2 3
DURATION: WEEKS
Number of Students Taking Module (anticipated)
DESCRIPTION - summary of the module content
AIMS - intentions of the module
To relate technical subjects studied in the course to examples of their application in electronic products and/or services. In particular, to examine in detail the design criteria of a CD/DVD system as a prime example of a consumer electronic system produced at minimum cost yet embodying electric, electro-optic and electro-mechanical components and sub-systems in a complex interdependency.
INTENDED LEARNING OUTCOMES (ILOs) (see assessment section below for how ILOs will be assessed)
SYLLABUS PLAN - summary of the structure and academic content of the module
The components and sub-systems of CD recorders The optical disk system as a communication channel, data and servo-channels, Shannons theorem, error correction. Semiconductor laser diodes and appropriate drive circuits, photo-detectors, basic and Gaussian beam optics, the design of optical recording heads, achieving minimum focussed spot size, anti-reflection optics. Linear power supplies; ripple voltage, regulation, efficiency, semiconductor heatsinking and thermal deratings. Switch mode power supplies; buck, boost and flyback configurations, continuous vs discontinuous mode operation, ripple voltage, calculation of inductor and capacitor values, required VA rating of inductor and ESR of capacitor. Power supplies: semiconductor ratings, Inductor and Transformer design calculations; minimum turns, energy stored in the core, size vs frequency of operation, losses due to diodes and switching components, efficiency vs SMPS pulse width, minimum pulse width for regulation. Position sensing and positioning; stepper motor drives vs synchronous motor drives, control and motor driving techniques, displacement transducers, optical position sensing using CCDs, large area photodiodes, photodiode arrays and quadrant photodiodes. Control and motor driving techniques including full, half and micro-stepping, servomotor feedback and encoder resolution. Recording codes and their use in optimisation of recording density and the preservation of BER. Recording formats. System and control formats. The development of DVD from CD and comparison with magnetic disk systems. Electro-mechanical tracking and focus systems and their feed back loops, continuous and sampled servo formats. Disk manufacturing processes and recording media, the relationship between available laser power, recording media and data rate Plus, a selection of the following depending on available speakers: Anti-reflection coatings Mastering Design stability and calculation of component tolerances for reproducible performance. Determination of required CMRR by critical analysis and design to achieve this. Error budgets. Selection of appropriate technique for given temperature range and sensitivity. A/D and D/A techniques for conversion to specified tolerance and conversion time, dither and signal averaging vs response time, system requirements for update rates and data storage etc. Implications of design on component requirements; 'in-house' component stock levels, role of parts distribution companies, lead times on non-standard components, economies of bulk purchase, component information/search services.
LEARNING AND TEACHING
LEARNING ACTIVITIES AND TEACHING METHODS (given in hours of study time)
Scheduled Learning & Teaching Activities Guided Independent Study Placement / Study Abroad
DETAILS OF LEARNING ACTIVITIES AND TEACHING METHODS
ASSESSMENT
FORMATIVE ASSESSMENT - for feedback and development purposes; does not count towards module grade
SUMMATIVE ASSESSMENT (% of credit)
Coursework 40 Written Exams 60 Practical Exams
DETAILS OF SUMMATIVE ASSESSMENT
DETAILS OF RE-ASSESSMENT (where required by referral or deferral)
RE-ASSESSMENT NOTES
RESOURCES
INDICATIVE LEARNING RESOURCES - The following list is offered as an indication of the type & level of
information that you are expected to consult. Further guidance will be provided by the Module Convener

Reading list for this module:

Type Author Title Edition Publisher Year ISBN Search
Set Williams E W The CD-ROM and Optical Disc Recording Systems Oxford University Press 1996 000-0-198-59390-2 [Library]
CREDIT VALUE 15 ECTS VALUE 7.5
PRE-REQUISITE MODULES ECM2115, ECM2111, ECM2105, ECM2117
CO-REQUISITE MODULES
NQF LEVEL (FHEQ) 3 AVAILABLE AS DISTANCE LEARNING No
ORIGIN DATE Thursday 15 December 2011 LAST REVISION DATE Thursday 15 December 2011
KEY WORDS SEARCH None Defined