While investing in your own full in-house EMC test laboratory may seem difficult to justify, most companies should be able to afford to implement some level of pre-compliance testing capability. Outside compliance test labs can cost upwards of $2,000 per day. The advantage of being able to perform some of the key tests in-house is that you can quickly determine whether your … [Read more...]
Review of IEC 60601-1-2: 2014 (4th Edition)
Introduction IEC 60601-1-2:2014 Edition 4 was published February 2014 and replaces IEC 60601-1-2 Edition 3 published on 2007. It pertains to EMC for medical electrical equipment and medical electrical systems. The European version (EN60601-1-2:2015) is identical to its IEC counterpart with exception of references to the EN versions of the 61000-4-x series and the addition of … [Read more...]
Radio Equipment Directive, 2014/53/EU
Editor’s Note: The Radio Equipment Directive (RED), 2014/53/EU, must be used for new products manufactured after June 13, 2016 and becomes mandatory for all products June 13, 2017. Abstract This article provides an update on changes occurring as a result of the new Radio Equipment Directive (RED) 2014/53/EU which can be used from June of 2016. It looks at the changes in … [Read more...]
Mitigating EMI Issues In Servo Motors and Variable Frequency Drives
Servo motors and variable frequency drives are wide-spread in the industry. Industrial automation cannot be imagined without these motors. This article deals with certain EMI-related issues inherent to these motors, specifically high-frequency drive signals. Background Servo motors and VFD are typically comprised of two parts - the motor itself and a controller (also … [Read more...]
Is EMC prepared to handle the challenges of the Internet of Things?
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...]
- 1
- 2
- 3
- …
- 37
- Next Page »
