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What is EMI?
Electromagnetic interference or EMI is an electrical disturbance (interference or noise) in a system due to natural phenomena, low-frequency waves from electromechanical devices or high-frequency waves from ICs and other electronic devices.
total search1451 articles
2008-10-02 Gate drive transformer withstands EMI effects
The SM580 gate drive transformer from Datatronic provides efficient pulse control in gate drive circuits used in MOSFETs and IGBTs for switch mode power supplies and other electronic equipment.
2007-04-09 Four-PLL spread-spectrum timing chip cuts EMI
Cypress Semiconductor introduced a four-PLL timing device with two spread-spectrum PLLs to reduce EMI.
2007-10-24 Fast-recovery rectifier keeps EMI quiet
Fairchild Semiconductor has announced seven new STEALTH II fast-recovery rectifier diodes
2002-12-19 Excel optocouplers generate no EMI, RFI
The EPC series of optocouplers are TTL/CMOS-compatible and are designed for use in telecommunications equipment controllers.
2014-04-03 Evaluating TLV2432 EMI immunity performance
Here's a document that looks into the electromagnetic interference rejection ratio of TLV2432.
1999-06-29 ESD/EMI protection in wireless handy-set
This paper deals with the AVX Trans-Guard voltage suppressor and how it functions to protect portable devices from ESD/EMI.
2007-05-23 ESD/EMI protection ICs optimized for 800MHz to 2.7GHz
Semtech Corp.'s new EClamp239xP series of inductor-capacitor (L-C) protection devices feature greater attenuation, steeper amplitude roll-off and lower clamping voltage.
2009-07-16 Ergonomic EMC/EMI filters handle up to 20A
Schaffner is offering the FN 2450, a compact single-phase low-leakage EMC/EMI filter, expanding its product offering of suppression components in plastic housings.
2004-09-06 Epcos expands EMI film capacitor line
Epcos has upgraded its X2 EMI film capacitor series with a higher rated voltage and smaller packaging.
2008-07-01 Employ fencing for best EMI protection
Electronic systems typically use EMI suppression devices such as ferrites and filters. This article focuses on the use of the Faraday cage or "picket fence" approach to PCB design and layout to eliminate costly EMI protection components.
1999-12-24 EMI/RFI board design
This Application Note will define ElectroMagnetic Interference and describe how it relates to the performance of a system. We will look at examples of Inter-system noise and Intra-system noise and present techniques that can be used to ensure ElectroMagnetic Compatibility throughout a system and between systems.
2010-10-01 EMI-shielding Class D amplifier targets portable audio systems
Silicon Labs introduces Class D amplifier with improved EMI shielding
2008-01-29 EMI, ESD protection included in these USB connectors
Spectrum Control's new series of USB connectors incorporate EMI or ESD filters into an industry-standard USB package.
2001-07-01 EMI vs. IC technology
Discover in this article the package characteristics you should look for when selecting ICs for your next design.
2006-08-25 EMI test receiver features FFT-based time domain scan
Rohde & Schwarz has introduced a new family of CISPR16-1-1-compliant EMI test receivers, said to be the first to offer Fast Fourier Transform (FFT)-based time domain scan capabilities.
2009-08-27 EMI test receiver detects disturbance up to 7GHz
Rohde & Schwarz has launched a new CISPR 16-1-1 compliant EMI test receiver for the frequency range from 9kHz to 7GHz.
2001-03-22 EMI suppression techniques with spread spectrum frequency timing generator (SSFTG) ICs
This application note describes the operation, advantages and limitations of spread spectrum technique in suppressing/reducing the effect of EMI within electronic devices.
2008-09-30 EMI suppression film capacitors have increased voltage rating
From Vishay comes three X2 EMI suppression film capacitors with an increased maximum main voltage and a wide range of lead pitches and capacitance values.
2007-12-28 EMI suppression devices guard Ethernet apps
Akros Silicon is offering a line of active EMI suppression devices that provides system-level EMC compliance and surge protection for Ethernet applications.
2000-12-01 EMI shielding strategies for design and attachment options
This technical article describes methods to contain EMI and achieve EMC.
2000-11-29 EMI reduction techniques
This application note suggests some tips, including the spread spectrum technique, on how to effectively reduce the EMI effect generated by higher clock speeds in PCs and workstations.
2012-09-21 EMI partnership adds SK Hynix in metrology research
The EUVL Mask Infrastructure (EMI) partnership was launched by Sematech adds SK Hynix to to bolster its attempts in tackling infrastructure gaps for EUV lithography in mask metrology.
2005-02-01 EMI immunity testing for automotive components
Select the best test method to use for increasingly complex automotive environments.
2005-04-01 EMI immunity in wireless handsets
Put a stop to electrostatic discharge issues in modern cellular handsets with integrated EMI filters.
2004-07-16 EMI from the ground up: Maxwell to CISPR
To quash the veritable balloon called EMI, all we need is some physics and a clear understanding of 'power'.
2009-06-17 EMI filters: recommendations and measurements
The application note aims to explain test conditions for EMIF devices.
2005-05-11 EMI filters with 100A current rating
Spectrum Control introduced a full line of high current/high voltage resin sealed EMI/RFI filters with current ratings to 100A.
2006-10-11 EMI filters target cellphones supporting terrestrial DTV
TDK said its new multilayer chip EMI filter arrays are the industry's smallest and lightest noise countermeasure components intended for mobile terminals that are compatible with terrestrial digital television broadcasts.
2006-06-16 EMI filters require no grounding
Murata Manufacturing Co. Ltd has developed the NFA2ASN series of EMI filters, which do not require connection to the ground plane.
2005-12-23 EMI filters pack performance in small footprint
California Micro Devices' new CM1418 and CM1419 EMI inductor-based filter arrays with ESD protection are aimed at audio applications in wireless handsets.
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