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2008-02-28 Replace inefficient MR16 halogen lamps with LEDs
Halogen MR16 lamps are widely used in professional store and home decorative lighting applications, though they have several disadvantages that limit their potential.
2007-10-22 MR16 LED chipset saves board real-estate
Zetex Semiconductors says it has developed a novel dedicated chipset and reference design for MR16-compatible LED lamps that can reduce the component count of existing solutions by up to 50 percent.
2014-07-25 DC/DC converter eases circuit form factor of MR16 LED lamp
The device co-packages a 60V, 3.6A-rated power N-channel MOSFET with all primary functions required by a DC/DC controller into the compact DFN6040-12 dual exposed-pad package.
2011-02-25 Cree LEDs replace halogen bulbs in lighting apps
Replacing 35-50W halogen MR16 bulbs, Cree's XLamp MT-G LEDs deliver sufficient light output for high-output, small form-factor directional lighting applications.
2011-03-24 Solid-state lighting poised to take off
While experts believe LEDs will remain the dominant SSL technology until 2020, they insist the rate of SSL adoption will still depend on how soon the cost of ownership can be reduced.
2007-09-24 Semiconductor light source plugs directly into AC power outlets
Seoul Semi's Acriche line of semiconductor light source has the capability to plug directly into AC power outlets in homes and offices without the need for an AC/DC converter.
2009-11-27 Ref design eases high-efficiency LED apps dev't
ON Semiconductor GreenPoint reference designs that will speed and simplify the development of high-efficiency LED-based lighting applications.
2013-12-23 Pushing white light efficiency through GaN-on-GaN
A startup company is betting on GaN-on-GaN for high efficiency white LEDs that could usher in a generation of devices using purely white LEDs and not blue LEDs covered with a mixture of phosphors.
2013-05-24 LED driver sales see robust growth from 2012 to 2015
"Major advances and cost reductions in lamps, luminaires and automotive lighting are spurring the rapid growth of the market for LEDs in general lighting applications," said Stephanie Pruitt of IHS.
2011-10-05 LED driver runs from 6-30V
Diodes' LED driver features switching frequency up to 1MHz and claims to decrease EMI in low-cost lamps.
2008-08-25 HB LED drivers deliver green lighting
Maxim Integrated Products has developed the MAX16822A/B and MAX16832A/C family of 2MHz, high-brightness (HB) LED drivers with an integrated MOSFET and high-side current-sense circuitry.
2007-02-13 HB LED drivers deliver 94 percent efficiency
Maxim has introduced high-efficiency LED drivers, each capable of delivering from 1W to over 25W of output power with up to 94 percent efficiency, while driving as many as six white LEDs connected in series.
2008-12-22 HB LED driver simplifies green lighting designs
Maxim Integrated Products has developed the MAX16834, a current-mode, high-brightness (HB) LED driver for boost, buck-boost, SEPIC and high-side buck topologies.
2014-03-03 GaN on GaN LED boosts wall-plug efficiency
The Gen3 LED from Soraa provides a robust beam control and allows reliable operation at a temperature up to 85C.
2008-10-16 EMC issues for hysteretic converters in LED driving
The use of LEDs in a wide range of lighting applications is rapidly increasing. In order to maximize the efficiency improvements that the LEDs offer they must be driven from switching regulators rather than power hungry linear circuits. One of the most versatile inductive switching topologies is the hysteretic converter. To ensure these converters are used effectively in a fully EMC compliant manner their limitations must be understood.
2013-07-01 Diodes rolls out DC-DC converter with 3V to 20V range
The AL8811 from Diodes comes with a wide 3V to 20V input voltage operating range and an output voltage up to 36V and is suitable for an array of different 12V AC lighting applications.
2014-06-10 Dimming driver drives up to nine LEDs from a 36V source
The LED buck driver from diodes claims an accuracy better than five per cent. Dimming is achieved by applying a fast digital PWM signal to the driver's control input.
2013-07-26 DC-DC converter cuts space in LED lighting apps
The AL8811 from Diodes is available in the 3 x 4.9 x 1.1mm MSOP-8L package and requires minimal external components enabling significant reductions in both circuit footprint and BOM cost.
2012-07-04 Converter drives LEDs in low voltage apps
ZMDI's ZSLS7025 boost LED driver for high-brightness LEDs is suited for driving multiple white LEDs connected in series from a low voltage supply.
2011-12-26 Boost converters tout 1MHz switching frequency
The ZLED7015 can drive devices that require a constant voltage and the wide input voltage range of 6-30V supports applications.
2009-02-18 2MHz LED driver suits compact apps
A 2MHz buck (step-down) LED driver from Allegro MicroSystems Inc. uses constant on-time with valley current-mode control. Its small size and high efficiency make it suitable for compact applications.
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