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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
2015-07-28 Guard against capacitor corrosion for long life apps
Advanced EMI suppression film capacitors that can survive harsh environments for 15 years or more enable designers to implement economical circuitry in cost-sensitive equipment such as smart meters.
2015-08-18 Grasp power MOSFET based on superjunction tech
In this article, we consider some of the basics of power MOSFET technology with a focus on superjunction technology.
2014-08-06 Frequency dithering with comparator, PFC controller
Use of frequency dithering is an effective and simple way to pass EMC compliance testing. This application note provides a simple circuit to implement frequency dithering for the UCC28180.
2002-06-26 Flomerics upgrades EMC modeling package
Flomerics Group plc has announced the availability of FLO/EMC v1.2 3D EMC modeling package developed to help design engineers comply with stringent European regulations on electromagnetics.
2005-07-13 Filters survive high temp processes
Syfer Technology offers a wide range of solder-mount feedthrough EMI filters that are fully compliant to the European Union's RoHS Directive and will withstand the higher soldering temperatures of lead-replacement materials.
2006-04-11 Filter plates are available in RoHS-compliant versions
Spectrum Control's standard and custom filter plates for EMI filtered signal lines have been redesigned to meet the European Union's RoHS directive.
2002-03-27 Filter capacitor replaces multiple capacitor, inductors
Claimed by the company to replace multiple capacitors and inductors, the X2Y filter capacitors from Johanson Dielectrics reduce board space and assembly costs, while providing EMI filter and noise suppression solutions for dc motors, broadband filtering, filtered connectors, and cellular applications.
2004-10-11 Filter arrays with 15kV contact discharge ESD protection
CMD released the first products in its new family of packaged electromagnetic interference filter arrays with electrostatic discharge protection.
2008-11-05 Ferrite chip beads suit handheld electronics
Laird Technologies Inc. has released its new line of EIA 0201 ferrite chip beads that extends the existing 0402 to 3312 surface-mounted monolithic EMI suppression product families.
2005-07-27 Fairchild establishes Chicago power design center
Fairchild Semiconductor has added its growing number of worldwide Global Power Resource design centers with the launch of Chicago, Illinois laboratory.
2000-09-27 Extending your backplane performance with GTLP
As wireless and wireline designs migrate toward higher and higher transmission rates, a system designer's challenges become increasingly difficult. This paper describes the GTLP as an enabling technology for designers who want to extend the performance of their backplanes.
2014-08-26 Exploring the ideal diode
The combination of the best characteristics of Schottky and ultra-fast diodes is the ideal solution. Find out how this is realised through Qspeed by merging the PIN-Schottky range of diodes.
2014-07-08 Explore pre-compliance testing for WLAN transmitters
Cost-effective and familiar test equipment can be used for in-house pre-compliance testing to uncover potential problems early on and reduce the risk of costly failure at the compliance test stage.
2003-06-02 Evaluating PXI and VXI for measurement, automation
Know the respective applications of PXI and VXI, compare their architectures and gain familiarity of their relative positioning.
2008-08-28 Ethernet SFP cage 'first' to offer 10 ports
Pulse, a Technitrol Co., has introduced a 1x10, small form-factor pluggable (SFP) cage for use in Ethernet equipment such as blade servers, switches, routers, and add/drop muxes.
2002-11-08 ESG89001 Electro Magnetic compatibility and printed circuit board (PCB) constraints
This application note discusses how to get a PCB functioning properly, by outlining the various constraints involved including EMC and EMI.
2000-05-03 Enhancing graphics performance at low power
This presentation focuses on graphics performance criteria and will demonstrate ways to support advanced features like large desktop, 3D and DVD within current power budgets. The paper also highlights the notebook and desktop performance gap.
2013-08-26 Enhancements on MC9S12VR MCU family
Know the differences between the two revisions and how to identify them.
2005-04-18 Enhance picture quality using advanced camera system
See what's inside Micron's 2Mpixel CMOS image sensor with an integrated camera system
2007-07-18 EMF simulator offers power rail extraction
The SIwave v3.5 from Ansoft Corp. features a finite-element-based DC solver optimized for extraction of power rail geometry in complex low-voltage/high-current PCB and package designs.
2011-08-15 EMC Basics #9: Solving RFI EMC problems
Learn how to address the increasingly common RF-based causes of EMC.
2011-06-06 EMC Basics #5: I/O as crucial circuits
Here's a discussion on input/output circuits during EMI circuit board reviews.
2012-05-24 EMC Basics #15: Solve leaky RF seam problems with gaskets
Know how to choose among the different types of these "leak stoppers".
2014-07-09 element14 announces latest power devices from KEMET
Some of the devices included in the release are the Tantalum T545 and T521 series devices, MPL series of power inductors with high inductance and ESD-R series of EMI cores.
2005-05-16 Electromagnetics for firmware people
A firm grasp of electromagnetics, now the foundational science of digital engineering, is important as systems get faster
2002-10-09 EELY-ECW membrane switches withstand 250V
Shanghai EELY-ECW Co. Ltd's membranes switches exhibit 100 megohms insulation resistance and offer a dielectric withstand of 250V.
1999-04-08 DSP based silicon solution for USB speakers in multimedia PCs
The DSP based silicon solution is targeted towards USB peripherals, especially smart speakers, for multimedia PCs. In addition to significantly improving the quality of the PC audio by moving its processing outside the noisy PC box environment. This application note discusses a DSP based solution for USB speakers in multimedia PCs.
2015-07-13 Drives LEDs efficiently with constant-voltage topology
Here is a look at an AC/DC single-stage driver for dimmable LEDs that combines digital control techniques with embedded algorithms.
2011-07-04 DPMU offers real-time power management
The Energy$ense family of multioutput, digital DC/DC power management unit (DPMU) ICs offer high efficiency real-time power sensing and control.
2013-05-02 Distributed power tech for portable multi-core app processors
The solution from IDT touts a patented distributed power technology that consists of a main PMIC with communication lines for the control of IDT's add-on power sources for increased power output capability.
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