What is an LED driver?
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Regardless of type, size, or power, all LEDs work best when driven with a constant current source since LED colour changes with small variations in driving current. LEDs often support varying system voltages and forward voltages, which can cause variations in LED brightness and colour. An LED driver is a self-contained power supply that has outputs matched to the electrical characteristics of your LED or array of LEDs. There are currently no industry standards (as of 2009), so understanding the electrical characteristics of your LED or array is critical in selecting or designing a driver circuit. Drivers should be current-regulated (deliver a consistent current over a range of load voltages). Drivers may also offer dimming by means of pulse width modulation (PWM) circuits. Drivers may have more than one channel for separate control of different LEDs or arrays. |
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| 2012-03-08 | Shining the spotlight on Malaysia's LED industry The Malaysian government is fiercely promoting the LED industry in multiple ways. The ecosystem calls for more efforts to bring down the prices to a competitive level for the local manufacturer. |
| 2013-02-18 | Shifting from CCFT- to LED-backlit LCD modules Learn about the various advantages of LED backlights over cold cathode fluorescent tubes for displays. |
| 2010-05-19 | Sharp ramps blue LED production at Fukuyama plant Sharp Corp. plans to begin mass production of blue LED chips at its Fukuyama Plant in Fukuyama City, Hiroshima Prefecture, Japan within this year. |
| 2003-02-04 | Sharp chip LED exhibits 30lx at 50cm distance The GM5WA06270A RGB chip LED from Sharp Corp. measures 6-by-5-by-2.4mm and achieves an intensity of 30lx at a distance of 50cm. |
| 2004-08-24 | SGM uses Super Vision's LED lightings Shanghai General Motors (SGM) is using Super Vision's Flex-LED lighting systems from Super Vision Int. Inc. for their car dealership signage throughout China. |
| 2011-01-26 | SEPIC design for MR-16 LED Here's a reference design for multifaceted reflector MR-16 LED lighting by using the TPS40211 to construct a SEPIC converter. |
| 2009-08-25 | SEPIC backlight LED driver This is a reference design for a SEPIC/linear LED-display backlight driver for eight parallel strings of 8 white LEDs at 70mA/string. |
| 2011-10-26 | Seoul Semi boosts LED production The company expects four billion LED packages per month to meet the booming LED lighting market. |
| 2012-12-18 | Semtech unveils HB LED driver platform The SC5014 and SC5014A use a tiny, 2.2æH, 1mm height inductor that the company said enables the design of ultra-thin displays while extending battery life. |
| 2009-08-27 | Selecting HB LED drivers for automotive lighting applications This application note provides an overview of HB LED driver selection criteria for automotive lighting applications. |
| 2004-07-16 | Selecting and designing a LED driver The article analyzes the choices, constraints and trade-offs on selecting white LED drivers for portable consumer devices. |
| 2006-12-08 | SDK to increase ultra bright LED capacity Showa Denko K.K. has decided to increase its capacity for producing AlGaInP ultra bright LED chips to meet growing demand for use in LCD backlighting and automotive parts. |
| 2007-07-20 | SDK to expand GaN-based blue LED chip production Showa Denko K.K. (SDK) announced it will invest almost $41 million to expand the production capacity of GaN-based blue LED chips at its Chiba site to 200 million units a month by June 2008. |
| 2004-10-29 | SDK blue LED features flip chip structure Showa Denko K.K. announced that it has developed a blue LED based on gallium nitride. |
| 2013-01-29 | Save power in LCD TVs with LED driving techniques New design techniques in LED driver circuits promise to deliver significant energy savings that will go a long way to helping TV manufacturers meet the tough requirements for power consumption. |
| 2007-04-13 | Samsung to roll out LED-backlit LCD panels Samsung disclosed it would begin producing a 24-inch LCD panel with an LED backlight that enables computer monitors to deliver color quality resembling that of today's high-quality TVs. |
| 2006-05-22 | Samsung sets up new LED research center Samsung Electro-mechanics and Kwangju Institute of Science and Technology announced their jointly established LED research center located at the institute's New Material Engineering building. |
| 2009-05-12 | Samsung LED sets up manufacturing base in China Samsung LED has set up its first overseas manufacturing base in Tianjin, China, according to a ShanghaiDaily report. |
| 2005-10-12 | Samsung Electro-Mechanics eyes LED market Korean electronics parts maker Samsung Electro-Mechanics (SEM) plans to branch out into LED (light-emitting diodes) backlight unit (BU) and the LED market for illuminating homes and buildings from next year, the company said. |
| 2010-06-17 | Samsung completes Tianjin LED production line Tianjin Samsung LED Co. Ltd has completed the construction and the begun operations on its new production line at the Tianjin Economic Development Area. |
| 2011-08-08 | Royal blue LED targets phosphor lighting Cree's XLamp XT-E Royal Blue LED is designed for use in remote phosphor lighting and other applications with similar requirements. |
| 2010-03-30 | Round, oval LED lamps target electronic sign apps Avago Technologies has developed SMT high-brightness oval and round LED lamps for use in outdoor and indoor electronic sign applications. |
| 2002-11-04 | ROHM selects AIXTRON tech for LED production ROHM Co Ltd has purchased AIXTRON AG's MOCVD multi-wafer Planetary Reactor for its LED production. |
| 2003-07-15 | ROHM LED displays allow automatic mounting ROHM Co. Ltd has developed what it claims to be industry's first LED numeric display that allows reflow soldering and automatic mounting. |
| 2003-05-22 | Rohm dot-matrix LED produces one billion colors Rohm has expanded their LED family with new full-color dot-matrix LED units that claim to achieve high readability and high viewing contrast compared with conventional products. |
| 2003-01-03 | ROHM blue LED displays tout resistance to heat ROHM Co. Ltd has announced the release of a line of 7-segment blue LED numerical displays that feature a new heat-resistant plastic package. |
| 2011-07-21 | Rising inventory halts LED industry expansion According to LEDinside, LED chip manufacturers will delay capacity expansion due to weak end-market demand and fund shortage. |
| 2005-04-29 | RichTek LED driver chips target mobile handsets Chip maker RichTek Technology Corp. announced it has developed four new white LED driver ICs that are suitable for mobile handset backlights. |
| 2008-03-04 | RGB multichip LED modules light up at 50lumens/W Allegro's SEPM series RGB multichip LED modules deliver 50lumens/W with all LEDs illuminated, along with high optical output of 25lumens, with all LEDs illuminated. |
| 2006-10-04 | RGB LED modules deliver 480 lumens Avago's new high-power LED modules, said to be the first to provide up to 480 lumens of light output, target customers who want an easy to use lighting solution that can display a variety of colors. |
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