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Power-converter IC targets dimmable LEDs, needs no optoisolator 11/12/2009
The large installed base of dimmable-lighting switches dictates that most new lighting technologies, including LED lights, should support dimming, and the myriad disparate specifications for dimming switches requires these lights to meet a wide range of characteristics.Microcontroller for power meters thwarts tampering 10/6/2009
Government agencies and utilities are pushing to move the global power infrastructure to a smart grid—a transition that will rely on the installation of intelligent power meters in residences and businesses.Osram develops direct-emitting green-laser diode 9/17/2009
Osram Opto Semiconductors announced lab results for a direct-emitting green-InGaN (indium-gallium-nitride)-laser diode. In pulsed-mode operation at room temperature, the laboratory prototype achieved an optical output of 50 mW, with a threshold-current density of approximately 9 kA/cm2, emitting light in true green—defined by the spectral range of 515 to 535 nm—with a wavelength of 515 nm.Workshop addresses LED challenges 9/9/2009
The US Department of Energy recently invested $6.4 million in LED design to encourage innovation in solid-state lighting. But solid-state lighting is as much about the surrounding electronic-power-control circuitry, thermal management, and optics as it is about the basic LED devices.US Department of Energy invests $6.4M in LED design 8/25/2009
The DOE selects four projects that aim to "fill key technology gaps, provide enabling knowledge or data, and represent a significant advancement in the SSL technology base."Digital power IC market to surge at 19.8% CAGR 8/21/2009
The worldwide digital power IC market -- including controller ICs, converter ICs, and system management ICs -- is expected to grow from more than 5 billion units in 2009 to 12.3 billion units in 2014.6A PSIP dc/dc converter achieves 15W/cm² 8/6/2009
Enpirion keeps raising the bar on its tiny PSIP (power-supply-in-package) dc/dc buck converters. The 6A EN5364QI and the 9A EN5394QI each have an input-voltage range of 2.375 to 6.6V and fit into an 8×11×1.85-mm package, achieving as much as 93% efficiency and a power density of 15W/cm².Monolithic 6A dc/dc step-down controller integrates synchronous switcher, power-output FETs 8/6/2009
Texas Instruments’ latest additions to its Swift series of power-supply ICs include point-of-load dc/dc converters in highly integrated packages. The 17V TPS54620 step-down synchronous switcher with integrated FETs comes in a 3.5×3.5-mm package and contains the control IC and power-output FETs.Lithium-battery formulation suits medical applications 7/21/2009
EaglePicher Medical Power, a supplier of batteries to manufacturers of implantable medical devices, has recently introduced a lithium-CFX (carbon-monofluoride) battery chemistry.Printable, paper-thin battery possible by year's end 7/7/2009
Aiming for a price below 10 cents, researchers from Germany claim a 1.5V battery that is thinner than a millimeter, lighter than a gram, and that could be produced cost-effectively through a printing process by the end of the year.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.ADVERTISEMENT
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