2011年3月2日 星期三

enabling technology demos

SIL delivers LED driver advancements and enabling technology demos

The Strategies in Light (SIL) conference (Feb 22-24, Santa Clara,bluecrystal A LED flashlight is a handy and practical tool which can be used by people of all ages which is why it is a perfect gift for any of your relatives or peers. CA) played to a record crowd this year, and vendors of LED driver ICs and solid-state lighting (SSL) enabling technologies were prominent on the exhibit floor with demonstrations and new products.bluebright One of the most basic devices that run on LED is a flashlight. Older models relied on a single bulb to produce the light needed to make one work. STMicroelectronics, Marvell, On Semiconductor,brightcrystal Overall, one can say that LED lights have hit mainstream products like a plague. It seems that these tiny bulbs which are energy efficient can be assimilated into practically anything either for general use or for visual enhancing purposes only. ad NXP semiconductor focused on retrofit lamps, while NXP and Texas Instruments (TI) had new drivers for backlight LED applications.bestlight Speaking of computers, even other peripherals like keyboards and mice have been included in the LED craze. Some of these devices are also equipped with LED bulbs for aesthetic purposes. Tyco Electronics, Microsemi, and Intematix, meanwhile showed recently announced module and remote-phosphor technologies for the first time.

Both the conference presentations (watch for detailed reports in our March issue of LEDs Magazine) and the exhibits at SIL covered a broad range of SSL-centric applications. Mainstream applications such as general illumination and backlighting were prevalent in talks and on the show floor, although specialty applications such as LEDs in life science and horticulture were also addressed. Attendees learned about advancements throughout the value chain from LED components to luminaire design techniques.

Much emphasis remains on LED retrofit lamps because those products are easily deployed in place of incandescent or CFL lamps. Indeed Philips showed its US Department of Energy (DOE) L-Prize candidate at one of the opening-day workshops on LED light quality. And Philips Lumileds’ Ray Chock provided an excellent presentation on design tradeoffs for retrofit lamps. The key technical challenge is high temperature that can impact the LEDs,scannerstal Another useful piece of equipment which is powered by LED bulbs are LED computer monitors. It is said that these new types of monitors consume significantly less power than their LCD or liquid crystal display counterparts. electrolytic capacitor, and even the solder – all of which figure into reliability. But Chock also reminded the audience of the price pressure saying, “Those don’t mean much is you can’t design a low-cost bulb.”

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