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 color changes with small variations in driving current. LEDs often support varying system voltages and forward voltages, which can cause variations in LED brightness and color. 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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| 2012-05-25 | LED equipment vendors face tough ride LED equipment vendors face tough ride |
| 2012-05-24 | Seven-segment LED displays operate at up to 105°C Seven-segment LED displays operate at up to 105°C |
| 2012-05-17 | TI LED driver micro-modules drive 23W power TI LED driver micro-modules drive 23W power |
| 2012-05-11 | Applied Materials to shift solar wafer manufacturing to Asia The company, as part of its restructuring plan, will relocate its solar equipment facility to Asia from Europe. |
| 2012-05-11 | TI led MEMS market in 2011: IHS TI led MEMS market in 2011: IHS |
| 2012-05-10 | Microsoft joins Hybrid Memory Cube Consortium Microsoft is joining the consortium, which is led by Micron and Samsung and aims accelerate industry adoption of hybrid memory cube technology. |
| 2012-05-14 | Selecting off-line LED driver topologies Selecting off-line LED driver topologies |
| 2012-05-03 | Samsung led dual-processor market in 2011 Samsung led dual-processor market in 2011 |
| 2012-05-02 | Address flicker, dimming challenges in LED lamp design Address flicker, dimming challenges in LED lamp design |
| 2012-04-24 | Linear debuts 100V constant-current, constant-voltage controller Linear's LT3796 is a high-side current sense DC/DC controller designed to regulate a constant-current or constant-voltage for driving high brightness (HB) LEDs. |
| 2012-04-17 | SMT LEDs offer up to 110lm from 1W Everlight Electronics releases the Shwo D series of high brightness SMT LEDs available in a 3.5x3.5x0.58mm form factor targeted at all kinds of lighting applications. |
| 2012-04-12 | LED lamps market to exceed Rs.18,000 cr by 2016 LED lamps market to exceed Rs.18,000 cr by 2016 |
| 2012-04-03 | TI's LED driver features flicker-free dimming TI's LED driver features flicker-free dimming |
| 2012-03-30 | LEDs rule over traditional lamps in UV apps Compactness, lower cost of ownership and environmental friendly composition are driving UV LEDs to continue replacing traditional UV lamps in incumbent applications, finds Yole Développement. |
| 2012-03-21 | LED AC-DC power supplies offer 60 to 100W LED AC-DC power supplies offer 60 to 100W |
| 2012-03-20 | Twin Creeks claims 50% lower solar cell cost Twin Creeks boasts a new ultra-thin manufacturing process targeted at advanced production of LEDs and CMOS image sensors that claims to greatly reduce silicon and other substrate material costs. |
| 2012-03-20 | LED lighting pushes power semiconductor market LED lighting pushes power semiconductor market |
| 2012-03-14 | LED backlight driver boosts dimming accuracy LED backlight driver boosts dimming accuracy |
| 2012-03-12 | Tablets to be 4th largest chip-consuming market Led by iPad, the media tablet in four years is expected to scale semiconductor heights that took more than a decade for other products to attain. |
| 2012-03-05 | LEDs offer high luminous flux up to 113.6lm Vishay's VLMW712xxx series of 1W cool, neutral and warm white LEDs offer high luminous intensity to 33,500mcd typical and high luminous flux from 67.2lm to 113.6lm. |
| 2012-02-24 | LED drivers optimise backlight TV control LED drivers optimise backlight TV control |
| 2012-02-24 | White LED lenses reduce system cost White LED lenses reduce system cost |
| 2012-02-23 | Eval board for LM3559/LM3560 This evaluation board is designed to fully evaluate the LM3559 and LM3560 synchronous boost converter. |
| 2012-02-14 | LED driver reference design ups efficiency LED driver reference design ups efficiency |
| 2012-02-13 | White LED boasts twice the lumens-per-dollar White LED boasts twice the lumens-per-dollar |
| 2012-02-10 | LED lighting power supply market looks bright LED lighting power supply market looks bright |
| 2012-02-10 | Automated sol'n optimises HB LED fabrication Automated sol'n optimises HB LED fabrication |
| 2012-02-13 | Reference design for LM3466 Here's a look at the design of an LM3466 evaluation board that drives 5 LED strings, each of which consists of 14 LEDs. |
| 2012-02-08 | 3-ch LED driver delivers sub-µs PWM dimming 3-ch LED driver delivers sub-µs PWM dimming |
| 2012-02-06 | Indian mobile market shows 14.1% growth in 2011 The Indian mobile market shows 14 per cent growth in 2011 and is currently led by Nokia (37.2 per cent market share), with Samsung (14.9 per cent), G'Five (7.5 per cent), and Micromax (5.8 per cent) trailing. |
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