High efficiency is particularly important because maximum luminair dissipation is restricted by law in many parts of the world.
October 2009 Archives
High efficiency is particularly important because maximum luminair dissipation is restricted by law in many parts of the world.
Continue reading Power supply makers target LED PSUs.
One to note maybe: LED driver powers 20A constant current, says Linear Technlogy.
It has introduced a synchronous step-down DC-DC converter that will deliver a 20A current to drive high current LEDs, writes Richard Wilson.
The LT3743 will drive up to 20A of continuous LED current from a nominal 12V input, delivering more than 80W of power. In pulsed applications, it can deliver up to 40A of LED current or 160W from a 12V input.
Read the full article >>
It has introduced a synchronous step-down DC-DC converter that will deliver a 20A current to drive high current LEDs, writes Richard Wilson.
The LT3743 will drive up to 20A of continuous LED current from a nominal 12V input, delivering more than 80W of power. In pulsed applications, it can deliver up to 40A of LED current or 160W from a 12V input.
Read the full article >>
Speaking of large displays - building-vertising - here's another, but on a slightly smaller scale. Check out Mitsubishi's 155-inch OLED display, which can apparently be expanded to any size, as smaller displays can be combined together. This particular monster is made from 720 10-centimeter square panels, and it was shown off at the CEATEC (Combined Exhibition of Advanced Technologies) show in Japan, states Technabob.
Continue reading Mitsubishi blasts out 155-inch OLED display.
A big building, and a big display. Think of it as a "building-vertisement", consisting of millions of LEDs.
This "Media Facade" can be found on Bayer's former HQ in Leverkusen, reports Engadget.
Continue reading Video: Building billboard features millions of LEDs.
A German-Austrian joint venture is to develop and produce OLED lighting in Dresden, writes Steve Bush.
Called Ledon OLED Lighting, the investors are Zumtobel Group of Austria, which owns UK firm Thorn Lighting; German applied research organisation Fraunhofer-Gesellschaft; and several employees at the Fraunhofer Institute for Photonic Microsystems (IPMS) research lab.
Called Ledon OLED Lighting, the investors are Zumtobel Group of Austria, which owns UK firm Thorn Lighting; German applied research organisation Fraunhofer-Gesellschaft; and several employees at the Fraunhofer Institute for Photonic Microsystems (IPMS) research lab.
Continue reading Zumtobel sets up OLED luminair company in Dresden.
Osram has stacked two die to produce almost 1W of infra red light from an LED, writes our technology editor, Steve Bush.
"With its 1mm2 thin-film chip stack, at a driving current of 1A it generates almost twice the output of the standard chips that have been used up to now," claimed Osram.
"Preferred applications are those which require high radiance so that small optics can be used. This is important, for example, in pedestrian protection systems and night vision systems in vehicles."
"With its 1mm2 thin-film chip stack, at a driving current of 1A it generates almost twice the output of the standard chips that have been used up to now," claimed Osram.
"Preferred applications are those which require high radiance so that small optics can be used. This is important, for example, in pedestrian protection systems and night vision systems in vehicles."
Continue reading 1W of infra red light from an LED.



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