By Gunter Langer, Langer EMV-Technik GmbH Contact: k.langer@langer-emv.de, www.langer-emv.de The number of mobile devices such as smart phones, tablets and wearables has risen significantly over the past years. At the same time, wireless communication has increased due to higher data rates. Will the growing number of wireless devices multiply the EMC problems? Is today's … [Read more...]
The IEMI Threat and a Practical Response
William Turner Senior Design Engineer MPE Ltd Email: wturner@mpe.co.uk IEMI Threat With the increasing use of electronics to control so many aspects of modern life, from smart grids to driverless cars, Intentional Electromagnetic Interference (IEMI) is a threat gaining concern. Various initiatives have been set up to address the needs of specific market areas, and new … [Read more...]
What's new: IEC 61000-4-5 Second Edition vs. Third Edition
by Jeff Gray, Chief Technology Officer, Compliance West USA Introduction IEC 61000-4-5 is part of the IEC 61000 series, which describes surge immunity testing caused by over-voltages from switching and lightning transients. The second edition of IEC 61000-4-5 was released in 2005 and has been in use for many years. The third edition was released as an EN standard in 2014. The … [Read more...]
Multilayer SMD Ferrites Optimized for Peak Current Loads
By Markus Holzbrecher 1. Background 1.1. Chip bead ferrites Chip bead ferrites are inductive surface mount devices (SMDs) used for filtering undesired high frequency signal distortions in printed board assemblies. They are manufactured using a multilayer screen printing process. Optimised for as high as possible losses, these components consist of a nickel-zinc-ferrite … [Read more...]
MIL-STD-461G: The "Compleat" Review
Ken Javor, EMC Compliance January 2016 The deleted old, The brand-spanking new. That which was borrowed, And that, eschewed. MIL-STD-461G was released on 11 December 2015 and will become contractually obligatory on programs initiated after that date. This account is more than a simple laundry list arrived at by performing a side-by-side “F” vs. “G” … [Read more...]
Why Is There AIR (in MIL-STD-461G)?
Ken Javor, EMC Compliance January 2016 (with a tip of the hat to a great performer…) As noted in the compleat MIL-STD-461G review also found in this issue of ITEM, SAE Aerospace Information Report (AIR), AIR 6236, In-House Verification of EMI Test Equipment was written specifically to support MIL-STD-461G. Specifically, section 4.3.11 Calibration of measuring equipment … [Read more...]
Have Suspect Counterfeit ESD Packaging & Materials Infiltrated the Aerospace & Defense Supply Chain?
Have Suspect Counterfeit ESD Packaging & Materials Infiltrated the Aerospace & Defense Supply Chain? Bob Vermillion, CPP, Fellow Certified ESD & Product Safety Engineer - iNARTE RMV Technology Group, LLC NASA-Ames Research Center Moffett Field, CA 94035 According to the 12 February 2016 edition of the EE Times, President … [Read more...]
Troubleshooting EMI Seminar with Lee Hill: Interview
By Senior Technical Editor, Kenneth Wyatt. This interview was conducted on Dec 9th, 2015 in anticipation of the upcoming Troubleshooting EMI with Lee Hill: Identify, Characterize, and Prevent Interference Problems Seminar Tour hosted by Rohde & Schwarz and Interference Technology. The tour is running from March 10-24, 2016 in five different cities - Austin, TX; Irvine, CA; … [Read more...]
Automatic verification of EMC pulse test equipment by means of the LabView programming environment
By Krzysztof SIECZKAREK1, Adam MAĆKOWIAK1 1Institute of Logistics and Warehousing, Laboratory of Electronic Equipment, Poznań, Poland, LA@ilim.poznan.pl Abstract: The aim of this work was to create an application dedicated to the automatic verification of test equipment used in electromagnetic compatibility testing. In order to perform it the LabView programming environment … [Read more...]
EMC Project Management and COTS
By Tim Williams Introduction One feature of the electronics industry that has become apparent, over the years of advising companies on EMC aspects of their designs, is the difficulty that many project managers seem to have in anticipating the problems that EMC requirements will cause to their project. Although it’s a universal feature – and you could say that an EMC … [Read more...]
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