William Turner Senior Design Engineer MPE Ltd Email: [email protected] 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...]
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, [email protected] 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...]
Why ANSI/ESD S20.20 1-Foot Rule for Charge Generators needs to be Increased to 1-Meter for Aerospace & Defense
INTRODUCTION IN THE SEMICONDUCTOR SECTOR TODAY, ESD sensitive devices can be damaged at <+/-50 volts. Aerospace & Defense cannot issue a Return Materials Authorization (RMA) for an ESD sensitive device that fails in space or a nonfunctioning weapon system in-theatre. The fact that extruded film can charge up to over +/- 100,000 volts below 20% RHhas been … [Read more...]
Mobile Generations Explained
The evolving mobile communications technologies provide us with vastly increasing data rates, faster response times and increasingly fluent means to access more content than ever in the history of telecommunications. Along with the development of the standards, the commercial solutions keep appearing for our selection. Often in this highly dynamic environment, the vast amount … [Read more...]
A Solution to Enhance Reproducibility With Radiated RF Emission and Immunity Measurements?
Mart Coenen EMCMCC, Breda, the Netherlands. Most, if not all electrical and electronic appliances have to be tested on their radiated RF emission and their immunity against RF radiated fields. This radiated testing occurs either on an open area test site (OATS) or in an anechoic or semi-anechoic room (SAR). The electrical and electronic appliance to be measured … [Read more...]
