Design Center
In-Depth
In search of a better DRAM: evolving to floating bodies 9/17/2009
Widely investigated floating-body memories appear to be compelling replacements for conventional DRAMs. A new floating-body memory uses the intrinsic bipolar transistor to store significantly greater charge.Thermal design guidelines for solid-state lighting applications using LEDs 9/11/2009
Here are six critical steps necessary to developing a successful, cost-effective thermal design for an LED application. Two families of LED applications have been used to illustrate many of the design choices that are open to the thermal designer to satisfy these application issues.Ambient-light sensors pack in features to help applications get smarter, greener 8/6/2009
Ambient-light sensors help smartphones conserve display power and improve battery runtime. Newer versions combine improved features, such as spectral response and dynamic range, integrated proximity, and digital communications. These features are readying the sensors for use in large-screen and automotive displays and solid-state lighting.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.The Hot 100 Electronic Products of 2008 12/15/2008
EDN's editors offer up their annual list of the year's 100 most significant ICs, components, buses, boards, EDA tools, power devices, test instruments, and more.Compact fluorescent lights: Not always the best solution 10/30/2008
Prying Eyes: A look inside a CFL bulb helps explain why they're no good in downward-facing installations.ADVERTISEMENT
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