The MI-IAM input attenuator module from Vicor Corporation is an accessory product to that company’s MI-200 and MI-J00 DC-DC converters that provide EMI filtering and transient protection. Designed for use with all 28- and 278-volt input converters, the MI-IAM can drive any number of modules with output loads up to 200 watts. This device meets the conducted emissions … [Read more...]
COTS Filter Module Features Module Provides Conducted Susceptibility & Spike/Surge Protection
The MTF50 is a COTS EMC filter from XP Power that has been developed specifically for the defense and avionics industry. This device has been crafted to filter the conducted emissions of the company’s MTC series of DC-DC converters and to protect against the conducted susceptibility as specified in MIL-STD-461-E and the surges and spikes specified in MIL-STD-1275A-D and … [Read more...]
DC/DC Converters & EMI Filters Target High-Reliability Applications
The new MilQor® product line of DC/DC converters and complementary EMI filters from SynQor has been crafted specifically for the high-reliability marketplace and are manufactured in an AS9100B-certified facility in the U.S.A. With proprietary QorSeal™ packaging that ensures survivability in harsh environments, these devices are compatible with industry-standard formats, but … [Read more...]
Resistor-Capacitor Device Provides ESD Protection for 3G LCD Screens
The EClamp237xK family of resistor-capacitor (R-C) protection devices from Semtech Corporation safeguards lines for cellular frequencies between 1.8 GHz and 2.5 GHz, the data rates required by the latest generation of high-resolution LCD screens used for visually oriented 3G handsets. This series includes the four-line EClamp2374K, the six-line EClamp2376K and the eight-line … [Read more...]
Different Methods of Connecting an SPD to an Electrical Distribution Network
The way in which SPDs are connected can have a large impact on the overall protection provided Bryan Cole Introduction Surge protective devices (spds) or transient voltage surge suppressors (TVSS) are used to reduce the impact of overvoltage transients on the electrical distribution networks found in various industries. Of course, the efficacy of these devices will affect the … [Read more...]
Reducing Ground Noise Emissions in Critical Electronic Equipment and Facility Ground Systems to Help Prevent Conducted EMI Problems
Many EMI problems involve emissions that circulate through electrical conductors within a facility and within equipment Philip F. Keebler and Kermit O. Phipps EPRI Knoxville, Tennessee Background The electromagnetic environment includes the areas inside and outside electrical and electronic equipment. The areas inside equipment include unused air spaces, circuit boards, cables … [Read more...]
Will EM, Electrostatic, Thermal, or Osmotic Forces Propel Tiny Robots?
Scientists at the Micro/Nanophysics Research Laboratory at Australia’s Monash University have developed tiny nano-bots capable of moving through the human blood stream. According to research team leader Prof. James Friend, “ Serious damage during minimally invasive surgery is, however, not always avoidable, and surgeons are often limited by the width of a catheter tube, for … [Read more...]
Optimal Techniques for Minimizing IR-Drop and Supply Bounce
Any multi-supply pinned microcontroller can be improved simply by altering the pin allocation Mart Coenen and Dick de Greef Phillips Applied Technologies Eindhoven, the Netherlands On-chip ir drop, ground bounce, and supply bounce are key parameters that may have a serious impact on both the functional reliability and the EMC of integrated circuits (IC). This paper presents a … [Read more...]
Capacitor Termination Can Enhance Reliability
Using a polymer termination for multilayer capacitors forestalls damage during PCB assembly Matthew Ellis For safety critical applications such as aerospace and military, failure caused by a short circuited capacitor could be disastrous. One of the most reliable components for surface mount communications is the multilayer ceramic capacitor, in which a block of ceramic … [Read more...]
IEC Issues Standard on Testing & Measurement Techniques of ESD Discharge Immunity
The International Electrotechnical Commission (IEC) has issued IEC 61000-4-2 Ed. 2.0 (2008-12) entitled “Electromagnetic compatibility (EMC) – Part 4-2: Testing and measurement techniques – Electrostatic discharge immunity test.” This standard relates to the immunity requirements and test methods for electrical and electronic equipment subjected to static electricity … [Read more...]
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