UltraLow Distortion IF Amplifier/ ADC Driver with Digitally Controlled Gain:  Linear Technology LT5514 (app note added 2/05)

Using the Xitanium Driver :  Luxeon Application Note  (app note added 6/06)

Visible Laser Driver Has Digitally Controlled Power Modulation:  Maxim Application Notes / 228 / Mar-10  (app note added 6/06)

Voltage to Current Converter Drives White LEDs:  06/27/02 EDN Design Ideas  /  (added 1/05)  You sometimes need to drive a white LED from one 1.5V battery. Unfortunately, the forward voltage of a white LED is 3 to 4V. So, you would need a dc/dc converter to drive the LED from one battery. Using the simple circuit in Figure 1, you can drive one white LED or two series-connected green LEDs, using only a few components....

Wall Clock Governor Driver :  (electronic schematic / circuit added 2/05)

White LED Drive from 1.5V :  Blocking oscillator based design allows LED + power supply to fit in #222 lamp base. (added 6/06)

White LED Driver Backlights LCD and Keypad:  11/13/03 EDN Design Ideas  /  (added 1/05)  Designers widely use white LEDs to backlight color LCDs and keypads in handheld devices, such as cell phones, MP3 players, GPS navigators, and PDAs. Their spectrum and brightness represent near-ideal light sources. One possible configuration for a phone or a phone/PDA combination is to have a group of three LEDs to light the display and six LEDs for the

White LED Driver in Tiny SC70 Package Achieves 84% Efficiency:  Linear Technology Magazine Design Ideas August 2002 (app note added 2/05)

White LED Driver in Tiny SC70 Package Delivers High Efficiency and Uniform LED Brightness:  DN315  Design Notes (Linear Technology) (app note added 6/06)

White LED Driver Touts High Efficiency:  06/12/03 EDN-Design Ideas / (added 7/03) White LEDs, the most recent addition to the LCD backlight, find common use in providing backlight for color LCDs. Thanks to their size and white-light output, they appear in small, portable devices with color displays, such as PDAs and cellular phones. Like other LEDs, a white LED needs a constant-current source—typically,....

White Light LED Driver with Gradual Dimming:  TI Application Note  (added 6/06)

White-LED Driver Provides 64-Step Logarithmic Dimming :  06/10/04 EDN Design Ideas  /  (added 1/05)  The circuit in this Design Idea is designed for portable-power applications that require white LEDs with adjustable, logarithmic dimming levels. The circuit drives as many as four white LEDs from a 3.3V source.

White-LED Driver Touts High Efficiency :  06/12/03 EDN Design Ideas  /  (added 1/05)  White LEDs, the most recent addition to the LCD backlight, find common use in providing backlight for color LCDs. Thanks to their size and white-light output, they appear in small, portable devices with color displays, such as PDAs and cellular phones. Like other LEDs, a white LED needs a constant-current source—typically, on the order of 15 to 20 mA....

Wide Input Range 1a LED Driver Powers High Brightness LEDs with Automotive and 12 VAC Supplies:  DN1012  Design Notes (Linear Technology)  (app note added 10/06)

Wideband Low Noise Amplifier Drives 50 Ohm Loads:  10/23/97 EDN-Design Ideas / (added 6/06)  

ZXSC100 Single cell DC-DC converter LED driving applications:  Zetec Semiconductors  Applications Notes ZXSC100 single cell DC-DC converter offers an ideal solution to driving white LEDs in flashlights, enabling operation from a single NiCd or NiMH cell.   (app note added 10/06)