Electronic Design

LED-String Driver Operates from Single Cell

This file type includes high-resolution graphics and schematics when applicable. This design describes how to light a string of LEDs of any color from a 1.5-V cell using just a few inexpensive ...
EDN

Dual string LED driver enables backlighting solutions

Linear Technology's LT3909 is a high efficiency, constant current LED driver, designed specifically as an LED backlighting solution for applications such as automotive and avionic displays which are ...
Electronic Design

Driver Powers Up to Six Strings of LEDs

TDK-Lambda has launched its second generation ALD6 series of multi-output dc-dc backlight LED drivers. TDK-Lambda has launched its second generation ALD6 series of multi-output dc-dc backlight LED ...
EDN

Diagnose LEDs by Monitoring the Switch-Mode Duty Cycle

A change in the forward voltage (VF) for a string of series-connected, high-brightness LEDs (HB LEDs) can indicate deterioration or complete failure of one or more of the LEDs. Accordingly, this ...