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Electronic Design Project

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Electronic Systems Design. Over following 2 weeks. Introduction to project ... Invariably, the Electronic Systems Design is applied in a project environment. ... – PowerPoint PPT presentation

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Title: Electronic Design Project


1
Electronic Design Project
ELE 12EDP
ELECTRONIC SYSTEMS DESIGN
George Alexander G.Alexander_at_latrobe.edu.au http/
/www.latrobe.edu.au/eemanage/
25 July, 2005
2
Topics over next 3 weeks
  • Today
  • General overview of subject
  • Electronic Systems Design
  • Over following 2 weeks
  • Introduction to project management

3
Contact Details
Lecturer George Alexander Department Electroni
c Engineering Office Physical Sciences 2 PS2
129B E-mail G.Alexander_at_latrobe.edu.au Website
www.latrobe.edu.au/eemanage/ Availability Mon,
Wed, Fri
PLEASE NOTE when e-mailing type ELE12EDP in the
subject field
4
Timetable
  • LECTURES
  • Monday 0900 HS2 222
  • Monday 1100 HS2 223
  • Lab sessions (2hr)
  • Monday 15.00 BG 320/324
  • Wednesday 11.00 BG 320/324
  • Friday 11.00 BG320/324

5
Assessment
  • 1-hour examination (closed book) 30
  • Major project 50
  • Assignments and laboratory work 20

6
Reading
  • Australian Standard 1000
  • Standards Association of Australia
  • Digital Systems, Principles and Applications
  • Tocci, R.J. and Widmer, N.S. 8th edition,
    Prentice-Hall, 2001
  • Project Management From Idea to Implementation
  • Haynes, M.E. Kogan Page, 1990

7
Lecture Notes (EDP and PM)
  • Available
  • at lectures
  • from filing cabinet in PS2
  • at website
  • http//www.latrobe.edu.au/eemanage/

8
Approach to the topic
  • Presentation of the principles of Electronic
    Systems Design (based on notes prepared by Jim
    Whittington, School of Electronic Engineering).
  • Some practical insights into how these principles
    have applied in practice in a leading
    telecommunications company.
  • Relating this to the EDP project

9
Background George Alexander
  • BSc (Eng) Edinburgh 1967
  • MBA Deakin 1986
  • Manufacturing
  • Logistics, production, engineering including
    maintenance, production eng, test eng, QA
  • Design
  • Hardware, software projects. Business support
  • Consulting/Project Management

10
ERICSSON
  • Headquarters in Stockholm, Sweden
  • Currently employs 50,000 people in 140 countries
  • Largest global supplier of mobile systems
  • 40 of total traffic through Ericsson systems
  • Est. 2005 sales A25bn (Telstra A21bn)
  • In Australia
  • Main customers Telstra, Vodafone, Hutchison
  • Regional support for Asia Pacific region
  • Until 2003, major design centre

11
Other ELE management subjects
  • ELE12EMT
  • Introduction to general engineering issues
  • ELE22EMT
  • Management Principles
  • Engineering Economics
  • Accounting
  • ELE31EMT
  • Research skills, presentation skills, report
    writing
  • Job seeking skills
  • ELE41EMT
  • Marketing, legal principles
  • Innovation, business planning

12
Todays Lecture Topics
  • Definitions Engineering Design, the Electronic
    Engineering Design Process
  • Requirements for effective electronic design
    activity
  • The Electronic Design Process
  • The skills required
  • The Systems Approach to electronic design

13
Engineering Design a definition
  • Engineering design is a process of devising a
    system, component, or a process to meet desired
    needs.
  • It is a decision-making process (often
    iterative), in which the basic sciences,
    mathematics and engineering sciences are applied
    to convert resources optimally to meet a stated
    objective.
  • Among the fundamental elements of the design
    process are the establishment of objectives and
    criteria, synthesis, analysis, construction,
    testing, and evaluation.

14
NEVER FORGET!
  • THE CUSTOMER
  • VALUE
  • THE NEED TO DELIVERY VALUE TO THE CUSTOMER

15
The Electronic Engineering Design Process
  • The electronic engineering design process is a
    creative activity where knowledge and resources
    are used to solve problems and meet performance
    objectives.

16
Requirements for effective electronic design
activity
  • An understanding of the problems to be addressed
    and the settings in which they arise
  • A knowledge of the field of electronics and the
    current trends
  • A knowledge of the available resources
  • An insight into problem-solving strategies
  • A thorough understanding of the benefits and the
    limitations of the design process, occurring in
    each of the above

17
The Electronic Engineering Design Process
  • The electronic engineering design process is a
    highly complex task, with many different
    solutions.
  • Due to this, and the continuing rapid growth of
    electronics technology, circuit designs are
    constantly changing.
  • It is impossible to categorise a few specific
    circuit design techniques which will satisfy all
    the requirements of a practising electronics
    engineer - therefore

18
The Electronic Engineering Design Process
  • Therefore, when studying the electronic design
    process, students must come to an understanding
    of
  • general design principles
  • the methods by which these principles can be
    linked to specific design applications.

19
Electronic Engineering Design Skills
  • In order to become proficient in electronics
    design, the engineer must be able to draw on
  • A fundamental understanding of the design
    processes that will be associated with a broad
    range of decision making choices regarding all
    aspects of the circuit production.
  • A sufficient background in physical electronics
    to understand the operation of different building
    block devices and to appreciate the inherent
    design opportunities and constraints associated
    with a variety of elements and technologies.

20
Electronic Engineering Design Skills
  • An understanding of the links that develop
    between device physics, the operation of single
    (discrete) devices, and complex ICs that make use
    of many devices in integrated form.
  • As new technologies emerge, this understanding
    of hierarchical relationships enables the
    designer to maintain a co-ordinated framework for
    the available design elements and the ways in
    which they relate.

21
Electronic Engineering Design Skills
  • 4. An insight into the simplifying models that
    are used in the design process and the regions
    over which these models are valid and invalid.
  • The mastery of the analytical and graphical
    methods of circuit design that provide
  • a foundation for the selection of design
    strategies
  • evaluation of alternatives
  • effective interaction with CAD systems no matter
    what type of implementation strategy is adopted.

22
Electronic Engineering Design Skills
  • An appreciation of the realistic experimental
    nature of electronics.
  • An orientation towards the use of computer
    support for the design and manufacture of
    electronic systems.
  • A systems management approach to the design task.

23
The Systems Approach to Electronic Design
  • When undertaking the design of an electronic
    system, the designer is usually exposed to a
    number of varied, and often opposing objectives.
  • For example, in most cases a number of technical
    objectives must be considered, the fulfillment of
    which can often require considerable effort and
    creativity.
  • At the same time, production costs, reliability
    and serviceability are often major
    considerations.
  • To achieve a successful outcome, the designer
    must take a systems approach to the circuit
    design, and attempt to merge the numerous
    objectives.

24
The Systems Approach to Electronic Design
Source Mitchell Mitchell, Introduction to
Electronics Design
25
Electronic Design Process some practical
insights
  • Reasons for design the triggers
  • Structure of the product hardware
  • Functional roles in design
  • Features of the design process
  • Features of the manufacturing process
  • Testing issues in design and in production

26
ERICSSON
  • Headquarters in Stockholm, Sweden
  • Currently employs 50,000 people in 140 countries
  • Largest global supplier of mobile systems
  • 40 of total traffic through Ericsson systems
  • Est. 2005 sales A25bn (Telstra A21bn)
  • In Australia
  • Main customers Telstra, Vodafone, Hutchison
  • Regional support for Asia Pacific region
  • Until 2003, major design centre

27
Reasons for Design
  • New technology generation
  • New component technology
  • New production technology
  • Need for product enhancements
  • Priority determined by urgency
  • Highest priority redesign now, retrofit
  • Non-urgent redesign for next product release

28
Reasons for Design
  • Market demands
  • New features to match/beat competition
  • Reduce physical size of product (shoe box).
  • Local adaptation of global design

29
Physical Structure of Product
  • Within the network, exchanges, base stations
    consisting of cabinets
  • Within the exchange - cabinets, sub-systems and
    magazines
  • Sub-system functions, printed board assemblies
    and backplanes
  • On the pba, printed circuit boards, discrete
    components, ICs, ASICs

30
Functional Roles in Design
  • Systems Engineers
  • PCB, PBA, ASIC designers
  • Test Engineers
  • Input from Service and Production areas
  • Project Managers

31
Design Process Features
  • Usually multinational
  • Strict design rules
  • Computer design tools (CAD/CAM)
  • Approved components
  • Industrialisation service and production
  • QUALITY design reviews, inspections, audits

32
Manufacturing Process Features
  • Multinational - co-operation, standards
  • Computer-controlled
  • PCB PTH, multilayer
  • PBA assembly
  • Automatic insertion for axial-lead and ICs
  • Automated soldering (wave, drag)
  • SMT (surface mount technology)
  • Manual or robotic assembly for odd shape
    components
  • Automatic wire wrap and test
  • Electrostatic discharge precautions

33
Testing Process
  • Component testing (reducing)
  • Visual inspection of assemblies
  • In Circuit Testing (ICT)
  • PBA functional test go/nogo, fault-finding
  • Magazine test
  • System Test test models (pre-delivery)
  • Also for design testing
  • ASICs (usually overseas test facilities)
  • Simulated Test Environment (STE)

34
Next week
  • Invariably, the Electronic Systems Design is
    applied in a project environment.
  • Next week, we will look at whats involved in
    managing such projects.
  • Thanks for your attention
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