News
Touch sensors allow for variations in parasitic capacitance 6/23/2009
Capacitive-touch sensors can detect a finger touch by measuring capacitive changes on the touch pad.Ramtron expands serial-FRAM line with 32-kbit device 6/19/2009
Ramtron International Corp, a supplier of nonvolatile FRAM (ferroelectric random-access memory), has announced the FM24CL32, a serial-nonvolatile RAM that offers high-speed read/write performance, low-voltage operation, and long-term data retention.LED-metal substrates get sticky with thermally conductive adhesive 4/24/2009
Bergquist has introduced its Bond Ply 450 thermal-interface material, which eases heat removal from LED assemblies when you combine it with the company’s Thermal Clad metal substrate.EDN names winners of 19th Annual Innovation Awards 3/31/2009
EDN has bestowed its 19th Annual Innovation Awards, honoring a diverse group of electronics engineers and the ground-breaking products they have produced. The Altera Stratix IV 40-nm FPGA design team is named Innovator of the Year. Read on for a complete list of the winners.LED chip sets help pico projectors bring big displays to small devices 2/13/2009
In-Depth
Applications and considerations of capacitive proximity sensing 6/19/2009
Capacitive proximity sensing is a clever way to interact with user interfaces without having to physically touch the interface controls. It is based on the principles of capacitive sensing, which detect the presence or absence of a conductive object.Filter-feedthrough-failure flash 5/14/2009
Tales From The Cube: A trip to Indonesia helps one engineer solve the case of a high rate of feedthrough failures.Neurostimulators improve quality of life 4/23/2009
Chronic-pain sufferers can benefit from a rechargeable spinal-cord stimulator from the St Jude Medical Neuromodulation Division.Metallic spring sensors serve as rugged, reliable capacitive sensors 3/13/2009
"White goods" often cannot accommodate a pc board directly under a surface as required by a solid conductive sensor. For these applications, consider a metallic spring sensor.A bad-capacitor story ends happily 1/8/2009
Tales From The Cube: When the same capacitor ends up charred in too many systems to dismiss the failures as statistically possible, an engineer must approach the problem via old-fashioned layout inspection.Experts
For 10G interconnects, the RJ45 once again will dominate 5/5/2009
GUEST OPINION: 10GBASE-T will be adopted as the primary 10GE interconnect for data-center switches and servers for many of the same reasons that RJ45 and twisted-pair cabling already dominate at gigabit speeds.Know your ceramic capacitor, part two 11/27/2008
Class II and Class III ceramic capacitor advantages, liabilities, and application considerations.All about surface-mount ferrites 8/21/2008
You may be surprised to learn that the performance of a ferrite bead in any power-filtering application can vary by more than a factor of 10, depending on the magnitude of dc current passing through the part during actual operation.Voices: Harley Feldberg: the pulse of the industry 3/20/2008
Voices: EDN speaks with Avnet's Harley Feldberg about the economic situation, the growing role of Avnet in the design community, and the changing role of Asia in the industry.Voices: Chano Gómez on powerline networking's "universal" hope 12/14/2007
How does UPA (Universal Powerline Association) technology cope with powerline noise? Why is it marketed as "200 Mbps" when it provides only a fraction of that? And is there hope for a true powerline standard? DS2's Chano Gomez provides technical and strategic insights.DesignIdeas
