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2005-08-17 Young ECC unveils white LEDs based on non-YAG tech
Components distributor Young ECC Electronics is unveiling new lines of white LEDs that are based on non-yttrium aluminum garnet (non-YAG) phosphor technology.
2005-06-01 Wide-input voltage SEPIC drives high-power white LEDs
What are the advantages white LEDs have over more conventional lighting?
2004-11-24 Why Drive White LEDs with Constant Current?
This app note describes the characteristics of a range of typical LEDs and circuits which achieve the necessary constant-current drive
2005-06-30 White-LED driver touts innovative brightness control
Micrel points to its MIC2297, a PWM boost regulator that's optimized for driving 10 white LEDs in series, for its innovative brightness control circuitry, which in addition to conserving power also helps to cut noise and EMI.
2006-04-17 White-LED chips lit for efficiency race
Nichia has developed a white-LED chip with 100lumen/watt efficiency, with volume production expected this year
2008-02-21 White multichip LEDs dissipate heat efficiently
Allegro has announced a new series of white multichip LEDs that achieve enhanced thermal dissipation through the incorporated heat sink on the bottom of the package.
2008-12-19 White LEDs with InGaN/TAG suit automotive apps
Vishay Intertechnology Inc. has launched what it claims to be the first series of high-intensity white power SMD LEDs in the CLCC-2 flat ceramic package to offer InGaN/TAG on sapphire technology.
2007-03-09 White LEDs tout higher light-delivery efficiency
Since the GaN substrates and light-emitting layer in Panasonic's high-power white LEDs have the same refractive index, its light delivery efficiency is over 1.5 times that of conventional sapphire-based LED element.
2007-05-15 White LEDs showcase 280mcd luminous intensity
Vishay Intertechnology Inc. has released a new series of ultrabright white SMD LEDs that use high-efficiency InGaN technology to provide exceptional brightness of up to 280mcd.
2010-02-09 White LEDs provide 300K/W thermal resistance
Vishay Intertechnology Inc. has developed power surface-mount white LEDs optimized to provide very low thermal resistance down to 300K/W and power dissipation up to 200mW.
2007-11-21 White LEDs outshine light bulbs
An international team of researchers demonstrated the first white LEDs to achieve a high CRI that could pave way to the adoption of white LEDs to replace incandescent bulbs and fluorescent tubes.
2012-02-10 White LEDs offer up to 148lm/W at 85C
Cree's XLamp XT-E white LED comes in a 3.45 x 3.45mm footprint and claims push LED adoption and lower cost
2008-09-29 White LEDs enable optimum optical power
Vishay Intertechnology has released what it claimed as the industry's first high-intensity white power SMD LEDs in CLCC-6 and CLCC-6 flat ceramic packages to offer InGaN/TAG on sapphire technology for high optical power from 2,240mcd to 5,600mcd.
2007-08-24 White LEDs emit 7cd at medium-range current
Rohm has developed white LEDs that incorporate a high heat dissipation package to efficiently emit 7cdsaid to be the highest in the industryusing current of 50-150mA.
2008-07-28 White LEDs come in CLCC-2 flat ceramic package
Vishay Intertechnology Inc. claims the industry's first series of high-intensity white power SMD LEDs in the CLCC-2 flat ceramic package.
2012-03-06 White LEDs boast brightness of 33,500mcd
Featuring luminous flux from 67.2-113.6lm, the 1W Little Star LEDs from Vishay are designed for a high current drive of up to 350mA
2005-09-07 White LED offers high luminance
Dominant Semiconductors launched a new range of white LEDs that offers "high luminance and durability," promising superior performance in different illumination apps.
2007-04-24 White LED drivers suit dual-display phones
Suited for dual-display architectures including clamshell phones, the SP6415 white LED driver from Sipex can be configured to automatically turn off the sub-display when the phone is open
2009-09-22 White LED driver targets LCD backlights
TAEC's new 60V power MOSFET driver is designed for white LEDs to be used in LCD panel backlight applications.
2008-06-23 White LED driver shines in notebook LCD displays
TI introduces a six-channel, 40V white LED driver with a built-in, high-efficiency boost regulator and 1.5-A FET
2009-08-27 White LED driver promises up to 55% power saving
National Semiconductor claims the smallest white LED driver with dynamic display backlight control that drives up to 11 high-current LEDs in series, illuminating larger displays in portable apps.
2006-03-08 White LED driver integrates Schottky diode
Linear Technology announced the LT3491, a constant current white LED driver, which features an integrated Schottky diode on-chip
2007-11-16 White LED driver features auto brightness adjustment
ROHM has begun sampling the BD6095GUL, touted to be first white backlight LED driver capable of automatic brightness adjustment of LCD backlights based on ambient brightness
2004-12-21 White LED driver boosts low-profile apps
Allegro's new dc-dc boost converters offer a low-profile solution for driving up to four white LEDs in series from a 2.5V supply, or five white LEDs from a 3V supply.
2008-07-10 White LED achieves 90 lumens at 250mA
Toshiba America Electronic Components has developed the TL12W02-D, a high power, high brightness white LED that can provide a typical flux of 90 lumens when driven at only 250mA
2007-05-02 Warm white LEDs enable varied lighting moods
Providing warm white light for general lighting applications, Osram's new LED products are available in different white tones, which when mixed created different lighting moods
2003-01-27 WAMCO to distribute Microsemi aviation white LEDs
Microsemi Corp. has signed WAMCO Inc. to distribute its latest line of "aviation white" high brightness white LEDs.
2007-02-07 Vishay unrolls low-cost SMD white LEDs
Vishay has released a series of sapphire-based, high-intensity white SMD LEDs that promise highly efficient InGaN technology at a low price.
2008-04-17 Utilizing a white LED driver to cost-effectively drive power-limited xenon flashes in digital cameras, camera Phones
This paper depicts the basics of the xenon concept and details a typical low power/low cost flash application.
2015-02-09 Utilising LEDs for LCD backlighting (Part 1
Learn about the types of LED LCD backlight units, the market trends and technological developments, the advantages of LED LCD televisions, and the key points in the optical design of LED backlights.
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