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UltraLow Distortion IF Amplifier/ ADC Driver with Digitally Controlled Gain: Linear Technology LT5514 (app note added 2/05) |
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Using the Xitanium Driver : Luxeon Application Note (app note
added 6/06) |
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Visible Laser Driver Has Digitally Controlled Power Modulation: Maxim Application Notes / 228 / Mar-10 (app note
added 6/06) |
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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.... |
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Wall Clock Governor Driver : (electronic schematic / circuit added 2/05) |
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White LED Drive from 1.5V : Blocking oscillator based design allows LED + power supply to fit in #222 lamp base. (added 6/06) |
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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 |
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White LED Driver in Tiny SC70 Package Achieves 84% Efficiency: Linear Technology Magazine Design Ideas
August 2002 (app note added 2/05) |
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White LED Driver in Tiny SC70 Package Delivers High Efficiency and Uniform LED Brightness: DN315 Design Notes (Linear
Technology) (app note added 6/06) |
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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,.... |
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White Light LED Driver with Gradual Dimming: TI Application Note (added 6/06) |
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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. |
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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.... |
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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) |
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Wideband Low Noise Amplifier Drives 50 Ohm Loads: 10/23/97 EDN-Design Ideas / (added 6/06) |
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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) |