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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
2014-11-20 Zytronic outs EMI-resilient capacitive touch controller
The ZXY110 boasts improvements in the speed, accuracy and EMI stability of self-service touchscreens, and supports Windows 7, Windows 8 and Linux OS.
2005-08-11 X-EMI readies chips to cut EMI by 20 dB
A startup with roots in the network-processor company SiTera Inc. has demonstrated a unique solution to electromagnetic interference problems at a vertical EMI show in Chicago.
2002-12-23 Vishay wirewound inductor eliminates EMI in PCs
The IMC-2220 series of wirewound, molded, surface-mount inductor from Vishay Intertechnology, Inc. is designed to eliminate EMI in power lines for PCs, telecommunications, appliances, and other electronic devices. Measuring 5.6-by-5mm with a 5mm profile, the inductors serve as drop-in replacements for industry-standard 2220 (or metric 5650) devices.
2002-09-23 Vishay inductors limit EMI in power lines
Vishay Intertechnology Inc.'s IMC-2220 series of surface-mount inductors measures 5.6-by-5-by-5mm.
2002-05-07 Vicor filter module meets harmonic current, EMI specs
The ENMods filter module from Vicor Corp. combines the MiniHAM passive harmonic current attenuation module and the FARM3 ac/dc front-end module, as well as additional filtering and holdup component to provide full compliance to EN harmonic current and EMI standards.
2008-06-19 Using the STR91xFA external memory interface (EMI)
The STR91xFA EMI bus is a very flexible bus and is user programmable. The bus can be configured to interface to different types of memory devices, including SRAM, flash memory, ROM or PSRAM.
2003-06-28 Using the DS1086 as a Microcontroller Clocler to Reduce EMI
This application discusses the procedure to interface a DS1086 with two common microcontrollers, the 8051 and PIC.
2013-02-18 Using popular wires to reduce EMI/RFI
We combine the twisted pair and lowpass filters to produce spectacular rejection of radio frequency interference and electromagnetic interference.
2011-09-05 Use spread spectrum clock generators for EMI reduction in digital systems (Part 2)
Read about the types of spread (down, center, and up); and the precautions to be aware of when using a spread spectrum clock.
2011-09-01 Use spread spectrum clock generators for EMI reduction in digital systems (Part 1)
Spread spectrum clock generators can be used to manage and suppress EMI. However, designers must be aware of the tradeoffs that come along with it.
2012-09-14 Use optocoupler to cut EMI/RFI in industrial comms ports
Understand why the optocoupler is the most simple and cost-effective solution for mitigating EMI/RFI coupling in communications cables.
2005-11-29 Tyco's new input filter module helps meet EMI requirements
Tyco Electronics Power Systems released a new input filter module that provides a space efficient and cost effective solution to meet EMI limits mandated by various international agencies.
2006-02-23 Tyco introduces CORCOM WG EMI filters
Tyco's new EMI filter is designed for applications requiring a low-cost method of providing industry compliance for conducted EMI/RFI emissions.
2001-10-04 Transmitter EMI reduction
This application note is intended to provide the reader with a real-world application that can be emulated to solve most noise-related signal conditioning problems.
2015-11-25 Tracking down ECU disturbances from EMI
In this article, we examine how to use oscilloscopes to detect ECU disturbances from electromagnetic interference.
2012-09-14 Tips for cutting EMI in DC/DC converters
Find out how the layout of your DC/DC power supply can significantly affect the amount of EMI that it produces.
2007-01-24 Tiny AC/DC eliminates EMI sans input filter
Bias Power's BPS-2 series of universal single- and dual-output 2W AC/DC supplies features a patented circuit design that effectively eliminates line EMI without need for an input filter, all in a package measuring under 1 inch?.
2015-08-06 Taking a look at every kind of EMI antenna
EMI antennas come in several forms: biconical; log-periodic; horn; bi-log, biconilog, hybrid-a combination of log-periodic and biconical; and specialty antennas.
2005-10-03 Startup tames EMI using spectral-diffusion scheme
X-EMI Inc. uses a method of spectral diffusion that modifies system clocks to reduce EMI from various sources.
2004-11-29 ST EMI filter protects up to 15kV ESD
ST unveiled an EMI filter for LCD driver lines that is suitable for use in mobile, computing and consumer apps.
2008-04-03 Spread-spectrum EMI reducer targets USB 2.0 links
PulseCore has introduced what it claims is the first spread-spectrum IC approach to radiated EMI reduction expressly designed for USB 2.0 links.
2007-11-01 Spread spectrum confronts EMI
The sleepy clock-generator chip market shook itself awake as two rival vendors, Cypress Semiconductor and SpectraLinear rolled entries in a new class of programmable devices.
2004-12-13 Spectrum Control unveils latest solutions for PCB EMI
Spectrum Control introduced its complete line of surface mount filter solutions for addressing EMI at the PCB level.
2005-07-01 Spectrum Control adds more value to EMI filter plate line
Spectrum Control Inc. announced that they have increased the scope of custom designs and value-added services for its EMI filter plate line. These filter plates incorporate a variety of capacitive and inductive filter elements for RF isolation from 5MHz to 1GHz and are designed for cost-sensitive, high-volume, industrial applications.
2013-07-15 Smart power module offers thermal sensing, stable EMI
Fairchild SPM 5 smart power module series 3-phase MOSFET inverter solution aims to provide designers with an AC induction motor and Brushless DC motor inverter solution for motors up to 200W.
2005-09-05 Smallest EMI filters save board space for wireless handsets
California Micro Devices said its new 0.4mm pitch CSP Centurion electromagnetic interference filters set a new price/performance standard for the industry.
2004-12-27 Single-chip solution addresses timing, EMI reduction in notebook PCs
Cypress announced sample availability of a single-chip solution that addresses the timing and EMI reduction requirements of notebook PCs.
2009-03-16 Silicon oscillator reduces peak radiated EMI
Linear Technology is offering a precision silicon oscillator that significantly reduces peak radiated EMI and improves control of switching regulators in multiphase power supplies.
2007-04-09 Shielded inductors suit tiny, EMI-sensitive designs
The new low-profile inductors from C&D Technologies feature an integral shield that makes them appropriate for space-constrained designs where EMI sensitivity is a concern.
2006-04-03 SFP EMI cage supports copper, optical transceivers
dataMate Products expands its SFP product line with a four-port SFP EMI cage that can be used with both copper and optical small form-factor pluggable transceivers.
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