News
Ultra-low-power microcontroller family brings accuracy, low power to three-phase metering 7/2/2009
Accurate, low power, and tamper proof are the key features of the new generation of smart meters that will enable the infrastructure of the smart grid.IEEE, industry players in race to help modernize smart grid 6/17/2009
Engineers and industry officials have started the clock ticking after a “historic” meeting in Santa Clara to begin to frame standards to help modernize the North American power grid, which has remained virtually unchanged for a century.POE ICs offer increased power efficiency for PDs 5/27/2009
Akros Silicon cannily plays the efficiency card—for both energy and space—with its new AS1854 POE (power-over-Ethernet) PD (powered-device) IC.Single IC integrates both drivers and controller for HB-LED lighting 5/7/2009
Most solid-state lighting applications require more electronics than just a series of HB LEDs (high-brightness light-emitting diodes) and their associated power-control circuitry. Lighting features such as communication and control and dimming, among others, require additional circuitry, including high-current drive electronics.Highly integrated power converter combines efficiency, small footprint 4/8/2009
The tiny, self-contained ENP53F8QI PwrSOC (power supply on chip) from Enpirion provides an ideal power source for electronic systems, especially in space- and power constrained systems, such as USB (universal-serial-bus) wireless data cards.In-Depth
Error amplifier limitations in high-performance regulator applications 6/24/2009
As power supply switching frequencies increase, higher loop crossover frequencies are necessary to keep pace with the escalating load transient slew rate demands, and to reduce the number and size of filter components. For voltage-mode-controlled supplies, the voltage loop error amplifier must work harder to provide its compensating gain loop contribution.Characterize optocouplers in the feedback loop of high-frequency power converters 6/19/2009
Optocouplers will add a phase shift that can make your power supply unstable. Here is how you can measure and compensate the loop.Electronic ballast circuits enhance resonant-mode power supplies 5/15/2009
This article explains the basic functionality of a typical electronic ballast circuit, highlights the similarities between the two applications, and describes a typical resonant-mode power-supply solution using a standard electronic ballast control IC. Experimental results are also shown to verify final performance and functionality.LED lighting: panel debates quality versus cost 5/8/2009
LED lighting can be great—but LEDs won’t make a replacement for screw-in light bulbs any time soon.Use alternative approaches to evaluate dc/dc synchronous buck converters 4/23/2009
Linear systems, online tools, and full simulations help you analyze your designs.Experts
Voices: Avnet LightSpeed’s Cary Eskow: illuminating energy-efficient design 11/27/2008
Cary Eskow is director of LightSpeed, the solid-state-lighting- and LED (light-emitting-diode)-business unit of Avnet Electronics Marketing. A 28-year Avnet veteran, he leads Avnet’s national team of illumination-focused engineers experienced in thermal, drive-stage, and optics design and has worked closely with LED manufacturers, advanced analog IC,Voices: National Semiconductor’s David Anderson 7/10/2008
EDN's Paul Rako talks with David Anderson, National Semiconductor's chief technologist for power management, about his long and distinguished engineering career, his company, and the present and future of power management.Honest energy, part two: Readers respond on low-power-factor loads 5/29/2008
Reader response to the last installment of Analog Domain has been both strong and informative—so much so that I’d like to share some of the feedback with you.Honest energy: The danger low-power-factor loads pose for the energy grid 4/2/2008
As typical household products become more sophisticated, the power factor of the load they represent decays—a trend that is exacerbating a growing stress on our electric-power infrastructure.Voices: GreenPeak Technologies’ Cees Links: wireless-networking visionary 2/21/2008
Cees (pronounced case) Links is an engineer and the chief executive officer at GreenPeak Technologies, an international supplier of low-power wireless-system modules compatible with IEEE 802.15.4 and ZigBee. Based in Utrecht, the Netherlands, Links has been a pioneer in the wireless industry and was involved in the establishment of the IEEE 802.DesignIdeas
