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Product Design for EMC - EMC Training Course

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This course will cover product design to meet EU and worldwide compliance requirements, as well as other commercial and military standards. Good EMC design gives you a product that is more reliable and better fitted for its environment. The course is structured to achieve the maximum learning potential from a combination of tutorial and demonstrations. It emphasises the underlying physics of interference generation and coupling and how it affects design methods, without resorting to complex mathematics.


COURSE CONTENT:

Day 1 – Introduction and theory

  • Introduction: Why EMC? | the definition of EMC | the various phenomena | EU Directives | military and aerospace requirements | the standards regime | standards generating bodies | military/aerospace versus commercial | content of the most common test standards
  • Principles of interference coupling: using the dB | frequency versus time domain | coupling modes | electric, magnetic and electromagnetic fields | transmission lines | ground as a current return path | control of loop area

Day 2 – Mechanical, PCB and cables

  • PCB layout and grounding: track impedance | proximity of return path | gridded and ground plane layouts | current flow in a ground plane | the effect of discontinuities | optimum ground and power plane configurations | layer stack-up and edge effects - interface layout and grounding | grounding hardware | heatsinks and thermal issues
  • Cables and connectors: unscreened cables: twisted pair, ribbon | cable balance and LCL | modes of propagation | screen function and transfer impedance | the effect of the connector
  • Shielding: theory of reflection and absorption | effect of apertures and seams, hatches and doors | enclosure resonance | conductive gaskets | conductive coatings and shielded windows | partitioning shielded enclosures

Day 3 – Electronics

  • Filtering and suppression: Filter configuration and layout | component imperfections | special components | ferrites on cables and within the circuit | I/O filtering and isolation | supply filtering | choice and use of transient suppressors | contact supporession
  • Power switching circuits: Emissions from switching circuits | coupling paths | differential and common mode sources | construction and circuit techniques: snubbers, transformers, heatsinks
  • Digital and analogue circuit design: Clocks, transmission line matching, power rail decoupling, | logic circuit immunity: timing and logic threshold constraints, transient susceptibility and the watchdog, defensive programming | analogue circuit immunity: bandwidth, linearity and dynamic range, balance
  • Wrap up and final discussion.

COURSE OBJECTIVE:

This course will cover design to meet EU and worldwide compliance requirements, as well as other commercial and military standards. Good EMC design gives you a product that is more reliable and better fitted for its environment. The course is structured to achieve the maximum learning potential from a combination of tutorial and demonstrations. It emphasises the underlying physics of interference generation and coupling and how it affects design methods, without resorting to complex mathematics.


WHO SHOULD ATTEND:

Electronic product designers and design managers: a basic knowledge of electronics is assumed. The course will be of particular interest to design engineers in industrial, medical, transport, telecomms, IT, consumer, marine and military sectors who have to meet EMC requirements as part of their project specification. It will help them deal with the technical and compliance aspects of EMC, as well as avoiding EMC-related design mistakes that disrupt project timescales and budgets.


ABOUT THE SPEAKER

PETER DOREY

Principal Consultant

Pete Dorey BSc (Hons) CEng MIET of TÜV SÜD. Pete is a Principal Consultant and has worked in EMC since 1980 and is a Notified Body assessor under the EMC Directive 2014/30/EU.

TIM WILLIAMS

Elmac Services

Tim Williams of Elmac Services on behalf of TÜV SÜD: Tim Williams has worked in electronic product design in various industry sectors for many years. He is the author of ‘EMC for Product Designers’, widely regarded as a standard text for electronics design engineers needing to meet EMC regulations.

Tim Williams also cooperated with Keith Armstrong to produce ‘EMC for Systems and Installations’. He has worked as a consultant in sectors as diverse as automotive, aerospace, consumer, telecommunications, medical and instrumentation in the area of EMC product design, testing and management. He has also been a technical assessor of EMC laboratories for UKAS and SWEDAC.


 TESTIMONIALS

"It was very beneficial for me. I think all the topics are important."

"Gained insight into EMC as an aspect of electronic circuit design and tips 'n' tricks on PCB design improvements."

"Very well-helped me mystify several areas - such as ground plane, transmission lines etc."

"Good course - Ill be recommending it to colleagues."

"Very good - I can think of a number of things I should be implementing on designs."

"Objective were met in for the most part fully."

"Very good. Good coverage of different topics."

"Course met the objectives regards to shielding, decoupling and filtering."

"Excellent practical demonstrations! Very well - perfectly paced for a mech-eng as myself."

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