API Technologies, a provider of RF/microwave, microelectronics and security solutions for critical and high-reliability applications, today announced the addition of a new standard 44 GHz millimeter wave (MMW) amplifier to its family of products. The new model BXHF1075 amplifier features an ultra-high frequency, two-stage design for high gain and medium power, and is enclosed … [Read more...]
Technology Allows Data Transfer through Metal Shielding
British engineers have reportedly discovered a way to bypass the Faraday cage effect that prevents the entry or escape of an electromagnetic wave through a metallic enclosure. According to a statement released by developer The Technology Partnership (TTP), new patent-pending Fluxor technology creates a “window” for electromagnetic transmission of power and data by applying a … [Read more...]
Galvanic Isolation in Small Packages for Industrial Applications
Semiconductor design and manufacturing company Texas Instruments has released new 2.5-kVrms digital isolation devices. Reducing board space without compromising protection from lower isolation ratings or EFT surges is increasingly important in industrial automation applications, such as programmable logic controllers (PLCs) and sensors, and fieldbus applications, such as … [Read more...]
EMC – Grounding on Automation and Control Systems Applications to Eliminate Electromagnetic Interference in Industrial Plants
Author Roberto Menna Barreto QEMC - Engenharia, Qualidade e Compatibilidade Eletromagnética Ltda., Rio de Janeiro, Brazil menna@qemc.com.br Summary The preservation of signals and equipment are generally characterized by the term Electromagnetic Compatibility (EMC), whose essence will translate in its own grounding system. The proper EMC improvement in the … [Read more...]
RF Emission Reduction Techniques for ARM-Based Microcontroller Applications
A system's immunity can be enhanced without causing any functional drawbacks. Mart Coenen, EMCMCC bv, Eindhoven, the Netherlands INTRODUCTION With today’s digital designs and the time frame available for design-in, electrical system engineers and PCB designers are more or less forced to follow the application concepts provided by embedded device manufacturers. The … [Read more...]
Voltage Sag Testing for Industrial Equipment—and a New Power Quality Measurement Technology
An electrical product should be able to ride through any regular voltage sag. Andreas Eberhard, Power Standards Labs, Alameda, California, USA Immunity from voltage sags is vital for reliable operation of our ever-more-sophisticated electronic controls and equipment. Every electrical product should be able to ride through typical voltage sags, but in many cases the first sag … [Read more...]
Magnetic Shielding Design for Manufacturing
Sensitive electronic devices require protection from radiating magnetic fields. David Grilli Magnetic Shield Corporation, Bensenville, IL, USA Magnetic shielding for static and low frequency (<100 kHz), time-varying magnetic fields is accomplished by containing a specific device or item within a sheet metal enclosure of high permeability material. Typically, a sensitive … [Read more...]
Towards an EMC Technology Roadmap
A technology roadmap is a tool for attaining the optimum development within a sector of technology. Marcel van Doorn Philips Electromagnetics & Cooling Competence Center, Eindhoven, the Netherlands INTRODUCTION This article expands earlier work on the concept of a technology roadmap for EMC technology.1 Just as a traditional terrestrial map helps insure that travelers … [Read more...]
Options for North American Product Compliance
Jack Black D.L.S. Electronic Systems, Inc. Wheeling, IL Manufacturers and distributors of electronic and electrical devices are required to meet various product safety and EMC standards established by the United States and Canada. They may be asked to show proof of compliance for these products by residential and workplace end-users. Today, there are multiple options for … [Read more...]
Fibrous Dust Testing – Genesis and Successful Reproduction of a Menace
Testing services and equipment are now available to analyze designs for fibrous dust susceptibility. Dan Willemin Professional Testing Incorporated, Round Rock, TX, USA Accumulations of dusts have always hampered cooling, to some extent, but dusts and electronics cooling problems of the past usually involved industrial or military applications. To understand why dust has … [Read more...]
