LED driving and dimming

Time: 2013-07-05    Copyfrom:

LED because of its efficiency and long service life, is continuing to speed faster than the application of lighting, LED driver is so technology, especially for the dimming of the LED drive technology. LED dimming, especially for display or lighting applications LED dimming, brought with matching LED and traditionally used for incandescent bulbs of TRIAC switch a series of special issues related to. Fortunately, the industry has already developed drive scheme to overcome LED and drive matching problem. Now focus on using the new devices, techniques and skills in dimming applications, to the highest possible efficiency drive in the mode of LED, and has the largest control. The English EDN webinar will talk about with the drive basic problems of dimming LED related, as well as the leading LED driver and component suppliers to help designers to overcome these problems, optimizing their design in power, control, cost, reliability and time to market.

Topics include:

The industry status and standards

Dimming problem still face (dimming range, color drift, flicker, resolution, accuracy, perception)

How to solve these problems effectively

Portable equipment and automotive LED lighting application contrast; serial and parallel contrast configuration; electromagnetic interference (EMI) / radio frequency interference (RFI); thermal stress

Components / drive selection (controller, voltage regulator, converter topology)

A novel technology,