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电源管理IC代理(文件可免费共享)

资料介绍
LED Driver Training Jun 05 CN TWLED Drivers
June 2005

optical

power management

interface

How Light Emitting Diodes Work

Holes (Lower Energy) + Electrons (Higher Energy) Release Photon Light Beam

optical

power management

interface

Things you need to know about LED
LED brightness is proportional to forward current Forward Voltage Changes from LED to LED For a given LED, forward voltage is proportional to forward

current
The purpose of having LED driver is to provide a constant current

source
It is difficult to match LEDs for equal brightness As LED technology improves, forward voltages are dropping

optical

power management

interface

Ultra Bright LED Applications
LCD backlighting Flashlights Signs Outdoor landscape lighting Gaming machines LCD TV Consumer audio products White goods Home in……
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