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Product Design for EMC - EMC Training Course

Adding value with our service portfolio

Product Design for EMC - EMC Training Course

Adding value with our service portfolio

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 to Electromagnetic Compatibility: Definition of EMC, emissions and immunity, EMC and the product cycle, reliability aspects of EMC, the decibel, interference in the time and frequency domain, coupling mechanisms, electromagnetic fields, near and far fields, differential and common mode cable coupling.
  • EU and other Regulations: EMC Directive 2014/30/EU, UK Regulations SI 2016 No. 1091, apparatus and fixed installations, excluded equipment, ANNEX II Internal Production Control, ANNEX III EU Type Examination, harmonised standards, EMC assessment, technical documentation, Notified Body, Declaration of Conformity, CE Marking, fixed installation essential requirements, other EU Directives and EMC; Radio Equipment Directive, Low Voltage Directive, Machinery Directive, Medical Equipment Directives. Technical Documentation exercise
  • Automotive, Marine and Avionics Regulations: Automotive regulations and standards, Marine Equipment Directive and standard, aerospace standards in US and EU.
  • Military Specifications: Military requirements UK, US and NATO, particular requirements of military environments, CE Marking and military equipment.
  • Functional Safety Considerations: Electromagnetic resilience and safety requirements, product safety regulations, standards and guidance, functional safety process, immunity testing and safety.
  • Test Standards: The commercial standards generating bodies, application of standards, the three types: product/generic/basic standards, CISPR emission standards, CISPR32/EN 55032: MME emission, CISPR35/EN 55035: MME immunity, IEC 61000-4 series basic immunity standards | Harmonised standards exercise
  • EMC Documentation: Test planning, test plan documents, preparation for test, test reports.
  • EMC Testing: Conducted and radiated emissions, harmonics and flicker, conducted and radiated immunity, magnetic field immunity, transient immunity, dips and interrupts, in-situ testing

Day 2 –  Electro-mechanical aspects

  • PCB layout, coupling and grounding: Grounding and the local ground structure, electric, magnetic and common impedance coupling, current return path, track impedance, use of ground mesh and ground plane, consequences of multiple ground planes, edge effects and layer stack, interface layout, connecting to surrounding metalwork, application of hea
  • Cables and Connectors: Unscreened cables: twisted pair, ribbon, transmission line resonances in common mode, screened cables low versus high frequency effects, screen grounding, transfer impedance, the problem of the pigtail, best practice screen termination, layout within an enclosure.
  • Shielding: Shielding theory, effect of practical constraints, apertures, resonances, penetrations, use of conductive gaskets, bonding, shielded windows and conductive coatings, zoning, installation and maintenance
  • Case study exercise: Example of product in a metal box: delegates to discuss how it could be improved

Day 3 – Electronic aspects

  • Filtering and suppression: Filter configuration, component imperfections, ferrite components, I/O filtering, mains filtering, filter layout and the importance of the filter ground, transient and contact suppression
  • Emissions from power switching circuits: Mains conducted emissions equivalent circuit, capacitive coupling, magnetic coupling, identifying component parasitics, DC-DC converters, output noise, use of snubbers
  • Digital and analogue circuit design: Digital emissions - clock selection, distribution and buffering, decoupling requirements and analysis; digital immunity - RF susceptibility, transient susceptibility, the watchdog, defensive software; analogue immunity - audio rectification, instability, non-linearity of response, circuit design techniques
  • Case study exercise: Multi-line interface example schematic: delegates to discuss necessary versus unnecessary components

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 technical certifier 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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