Title: Electronic Design Project
1Electronic Design Project
ELE 12EDP
ELECTRONIC SYSTEMS DESIGN
George Alexander G.Alexander_at_latrobe.edu.au http/
/www.latrobe.edu.au/eemanage/
25 July, 2005
2Topics over next 3 weeks
- Today
- General overview of subject
- Electronic Systems Design
- Over following 2 weeks
- Introduction to project management
3Contact 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
4Timetable
- 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
5Assessment
- 1-hour examination (closed book) 30
- Major project 50
- Assignments and laboratory work 20
6Reading
- 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
7Lecture Notes (EDP and PM)
- Available
- at lectures
- from filing cabinet in PS2
- at website
- http//www.latrobe.edu.au/eemanage/
8Approach 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
9Background 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
10ERICSSON
- 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
11Other 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
12Todays 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
13Engineering 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.
14NEVER FORGET!
- THE CUSTOMER
- VALUE
- THE NEED TO DELIVERY VALUE TO THE CUSTOMER
15The 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.
16Requirements 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
17The 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
18The 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.
19Electronic 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.
20Electronic 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.
21Electronic 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. -
22Electronic 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.
23The 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.
24The Systems Approach to Electronic Design
Source Mitchell Mitchell, Introduction to
Electronics Design
25Electronic 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
26ERICSSON
- 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
27Reasons 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
28Reasons for Design
- Market demands
- New features to match/beat competition
- Reduce physical size of product (shoe box).
- Local adaptation of global design
29Physical 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
30Functional Roles in Design
- Systems Engineers
- PCB, PBA, ASIC designers
- Test Engineers
- Input from Service and Production areas
- Project Managers
31Design Process Features
- Usually multinational
- Strict design rules
- Computer design tools (CAD/CAM)
- Approved components
- Industrialisation service and production
- QUALITY design reviews, inspections, audits
32Manufacturing 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
33Testing 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)
34Next 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