Not only can they extend the useful life of your LEDs, drivers also aid in dimming and color changing
Light emitting diodes (LEDs) are low-voltage light sources that require a constant DC voltage or current to operate optimally. Because they operate on a low-voltage DC power supply, they easily adapt to different power supplies, have longer [...]
Conserving energy is now a mandate, not a choice, and part of that mandate is the need to go Green. When it comes to lighting, we can easily imagine the impact of globally improving the efficiency of lighting sources by 10 percent. But what if it could be improved by 1,000 percent? Newly enhanced LEDs [...]
Maxim Integrated Products has introduced the MAX16815/MAX16828/MAX16835/MAX16836 high-voltage, linear high-brightness LED (HB LED) drivers capable of driving a long string of HB LEDs from a 6.5V to 40V input supply.
These single-channel devices integrate a pass element with a 0.4V (typ) dropout voltage, thus eliminating the need for an external power transistor. Providing ±5-percent accurate LED [...]
The use of LEDs for solid-state lighting, rather than as indicators, is poised to make inroads in applications in the automotive, architectural and general illumination markets, according to market analysis firm Yole Developpement.
But for the growth to pan out, particularly in the general illumination market, there is still technical work to be accomplished. Although LEDs [...]
Driven in the short-run primarily by mobile phone handsets, the worldwide white light-emitting diode (LED) market is projected to exceed 20 billion units in 2008. Using higher light-emitting efficiency and lower pricing, an increasing number of white LEDs are being used as backlight for notebook PCs, medium and large LCD TVs, and single-color and full-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, 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 [...]