ASSIST is a web site used by standardization management to develop, coordinate, distribute, and manage defense and federal specifications and standards, military handbooks, commercial item descriptions, data item descriptions, and related technical documents prepared in accordance with the policies and procedures of the Defense Standardization Program (DSP). Besides … [Read more...]
Transitioning to New EMC Directive 2014/30/EU
Now that the new EMC Directive 2014/30/EU is mandatory and in effect as of April 2016, what do manufacturers need to do to ensure continued compliance? Elite Electronics Engineering has a five-step plan that explains the recommended steps involved. As a minimum, Elite recommends the following steps to ensure continuing compliance with European EMC requirements: 1. Check … [Read more...]
New Line of Power Entry Filter Modules Announced for Medical Applications
The KMF power entry module from Schurter is for use in protection class II double-insulated applications. The new version is perfectly suited for medical equipment used at home. Protection class II equipment, in contrast to protection class I equipment, generally has no metal case. This category of equipment is called double insulated, and requires higher safety levels for … [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...]
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...]
How to Select the Right EMC Standard for Your Product
Many companies developing products find it difficult to determine the appropriate EMC standard to comply with. The IEC (International Electrotechnical Commission) has developed a web page that explains EMC and offers a tabbed selection method for determining the right standard that applies to your product family. You can then go to their web store and purchase downloadable … [Read more...]
How the IEC is Organized for EMC
International EMC standards can be confusing to the newcomer. The IEC has posted a chart as to how the various standards organizations are organized. The first level of organization is the committees, such as TC77, CISPR, and various product committees. These committees have liaisons with associated standards organizations, such as ISO, ITU, CENELEC, and many others. Many of … [Read more...]
New Filters for Asynchronous Motor Control
TDK recently announced a new line of filters designed expressly to filter the frequency converters for asynchronous motor controllers. High frequency noise emissions from these frequency converters has become more of an issue as older motor technology is replaced with the newer variable speed - variable frequency motor controller systems. The EMI from these can cause … [Read more...]
New High-Speed CAN Transceiver Families With High EMC Performance
TI recently announced two new families of controller area network (CAN) transceivers that meet all industry standards for EMC from both U.S. and European auto manufacturers. Key features include compliance to SAE J2962, European IBEE, CISPR 22, IEC 61000-4-6 up to 10V IEC 61000-4-4 Criteria A to ±4kV, and IEC 61000-4-3 from 80 MHz to 2.7 GHz and 100 V/m. Even more … [Read more...]
Blue Guide for EU Product Rules Available
The European Union’s (EU) “Blue Guide” describes general rules for placing electronic products on the market within the EU. It describes how the EU regulates the free movement of goods, when the harmonization rules apply, the product supply chain and their obligations, product requirements, conformity assessment, and accreditation. The document goes on to describe how market … [Read more...]
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