| Home > EMC/EMI Training Courses Directory > EMC for Electronic Designers Course 659 |
EMC for Electronic Designers Training Course |
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| Objectives | For whom intended | Outline | Topics | Information | Lecturer | Registration | |
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EMC design in printed circuit boards (PCBs) is most often considered, if at all, towards the end of a project. This is often an expensive mistake.
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Objectives
A few "enlightened" PCB designers understand that including EMC design concepts as early as possible in a design project results in (1) improved performance (2) improved reliability and (3) the most cost effective way of achieveing a compliant product.
This comprehensive 3 day EMC for Electronic Designers course will give attendees both the in-depth knowledge and understanding to integrate good EMC design techniques at any stage of a projects development. |
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Course Outline |
Day 1
- The physical basis of EMC (at radio frequencies)
- Circuit design for EMC
- Component selection for EMC
- EMC in interconnections
- Filtering for EMC
Day 2
- Shielding
- Heatsinks and
- Electrostatic discharge
- Suppressing electro-mechanical devices
- Surge suppression
- Integrating wireless datacomm’s into products
Day 3
- Basic PCB layout techniques for EMC
- Advanced PCB layout techniques for EMC
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Topics covered in detail |
1 The physical basis of EMC (at radio frequencies)
- Electromagnetic fields and waves
- Importance of the return current path
- Field theory
- Permittivity, permeability, wave impedance and velocity
- Near-field and Far-field
- Three different types of EMC analyses
- Skin effect
- Three different types of resonances
- Waveforms, spectra, and ‘accidental antennas’
- Three parts to every EMC issue
- Four types of EM coupling
- Differential mode and common mode
- Benefits of planes
- Overview of RF emissions
- Non-linearity, demodulation and intermodulation
- Three interference mechanisms
- Overview of RF immunity
- Earthing (grounding) does not help EMC at RF
- ‘Internal EMC’ and crosstalk
- Some useful references
2 Circuit design for EMC
- Digital circuit design for EMC
- Rise/fall times and spectra
- Numerous circuit design techniques
- Watchdogs and brownout monitors
- Spread spectrum clocking
- Analogue circuit design for EMC
- Stability of feedback circuits
- Numerous circuit design techniques
- Hysteresis in comparators
- Switch-mode circuit design for EMC
- Reducing dV/dt and dI/dt, snubbers
- Heatsinks
- Fast/soft switching rectifiers
- Transformer interwinding capacitance
- Communications circuit design for EMC
- Twisted pairs and differential drive/receive, fibre optics
- Common-mode reduction techniques
- Optoisolators
- Some useful references
3 Component selection for EMC
- Active devices
- Passive components
- Problems with second sources
- Problems with counterfeits
- Controlling purchasing
- Some useful references
4 EMC in interconnections
- Antenna effects of conductors
- Use fibre optics or infra-red instead
- Controlling DM and CM return paths
- Cable classification and segregation
- Unshielded interconnections
- Routing the conductors in a cable or wire bundle
- Shielded cables
- Terminating cable shields
- Interconnecting shielded enclosures
- ZT , transmission-line cables and connectors
- Some useful references
5 Filtering for EMC
- Filtering is not a ‘black art’
- How filters work
- The advantages of soft ferrites
- CM filtering
- Specifying filters
- Earth leakage currents and safety
- Filter earthing
- Filter construction, mounting, and cabling
- The synergy of filtering and shielding
- Some useful references
6 Shielding (VLF to GHz)
- Economic issues for shielding
- Shielding from metal plates (image planes)
- How shields work
- Skin depth and low frequency shielding
- The problems caused by apertures
- Box resonances
- Shields in the near field of a source
- Gaskets
- Don’t route conductors close to shield apertures
- Cable penetrations
- Waveguides-below-cutoff
- Displays
- Ventilation
- Plastic enclosures
- Preventing corrosion at joints
- Some useful references
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7 Heatsinks and EMC
- Controlling stray heatsink currents
- Ceramic heatsinks have no stray currents
- Returning stray heatsink currents
- Using the Reference Plane as a heatsink
- Heat sink RF resonances
- Effects of heat sink shape
- Location of semiconductors
- Fins and pins
- Practical RF-bonding issues
- Some useful techniques
- Shielded washers
- Heat pipes
- Low-inductance (RF) bonding
- Combining shielding and heatsinking
8 Electrostatic discharge
- ESD threats
- Insulation techniques
- Shielding techniques
- Protecting signal or power conductors
- Earth lift problems
- Protecting data and signals from errors
- Other ESD techniques
- Some references
- Some useful ‘software for ESD’ references
9 Suppressing electro-mechanical devices
- The EMC issues of arcs and sparks
- Suppressing electro-mechanical contacts
- Non-linear snubbers
- Suppressing commutator motors
- Suppressing sliprings
- Suppressing spark ignition
- Suppressing electric bells
- Some useful references
10 Surge suppression
- How surges cause damage
- Galvanic isolation
- Surge protection circuits
- Types of surge protection device (SPD)
- Combining types of SPDs
- Data needs error correction
- SPD construction
- Rating SPDs
- Fusing and maintaining SPDs
- Lead inductance and “let-through” voltage
- ‘Earth lift’ problems in systems with line-earth SPDs
- Some useful references
11 Integrating wireless datacomm’s into products
- Internal EMC and adding radio modules
- Threats from radio module, to other circuits
- Susceptibility of digital devices and circuits
- Susceptibility of analogue devices and circuits
- Threats to radio receiver, from other circuits
- Spread-spectrum and digital radio systems
- MIMO and IEEE 802.11n
- Communication protocols for co-located wireless devices
- Ultra-wideband (UWB) radio systems
- Construction
- Leaky feeder radio systems
- Computer simulation techniques
12 Basic PCB layout techniques for EMC
- The scope of these layout techniques
- Saving time and money
- Segregation
- Interface analysis, filtering, and suppression
- 0V and power planes
- PCB-chassis bonding
- Power supply decoupling
- Transmission line techniques
- Layer stacking
- Some useful references and sources
13 Advanced PCB layout techniques for EMC
- When should we use advanced PCB techniques?
- Future trends and their implications
- Rules of thumb, approximations, simulations
- Virtual design for SI and EMC
- Advanced segregation techniques
- PCB-level shielding up to GHz
- Advanced interface filtering and suppression
- Advanced PCB-chassis bonding
- Advanced PCB planes
- The totally shielded PCB assembly
- Advanced PCB decoupling
- Buried capacitance
- Advanced transmission lines
- Differential transmission lines up to 10Gb/s
- Advanced layer stacking
- Microvia (high density interconnect) PCB technology
- Some final tricks
- Some useful contacts, sources, references
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Who should attend
All electronic designers and their managers, in all industry areas, including:
- Automotive
- Medical and healthcare
- Consumer
- Information Technology (IT)
- Industrial instrumentation or control
- Railway
- Aerospace
- Military
- Telecommunications
- Radiocommunications
Mechanical designers will also find much of the course material very valuable, and the order of delivery of the material can be arranged to make it easy for them to attend part-time.
Alternatively, we can offer a version of this course aimed solely at mechanical designers |
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About the Lecturer |
 Keith Armstrong graduated from Imperial
College, London, in 1972 with
an Honours Degree in Electrical
Engineering, has been a member of
the IEE (now the IET) since 1977, a
UK Chartered Engineer since1978,
and a Group 1 European Engineer
since 1988.
Cherry Clough Consultants was
started by Keith in 1990 to help companies reduce
costs, timescales and warranty costs whilst also
complying with the EMC Directive and other regulations
world-wide.
Keith has presented many papers, demonstrations, and
training courses on EMC, and on EMC for Functional
Safety, worldwide, and has also written many articles
on these topics.
He chairs the IET’s Working Group on “EMC and
Functional Safety”, and is the UK’s authorised
representative on the IEC teams working on:
IEC 61000-1-2 (EMC & Functional Safety, MT15), and
IEC 60601-1-2 (EMC for Medical Devices, MT23).
CLICK HERE for more details.....
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- Course Methodology : This course is presented classroom style using a PowerPoint slideshow containing practical illustrations of the techniques to aid understanding.
Case studies that are relevant to the trainees will be included verbally.
Each attendee will be presented with a bound copy of the PowerPoint slides used during the
training, printed monochrome at 6 slides per page. Space is provided for taking notes.
- Course Duration: Three (3) full days, 9:00am – 5:00pm each day.
This is a very intensive course with a very large amount of practical detail. If presented as an in-house course it can be very usefully combined with individual consultancy for each engineer or manager, to help him or her apply the material to his or her current projects.
Registration
- On line
Course registration can be completed, including secure payment via a credit card, by clicking on the email link immediately below.
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- Off line
To register with any other form of payment simply click on the "CLICK HERE to pay without using a Credit Card " below and follow the instructions.
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Contact
0141 4161 663 |
IT PAYS TO ADVERTISE
HERE
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Contact
0141 4161 663 |
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Willow House, Greenrig Road, Hawksland, Lanark, ML11 9QA, UK
