Circuits & Schematics Light: led - 2

Subsection: "Light"
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  Colour Organ   LEDs
Search results: 137 Output: 11-20
  1. .. You never know when you might need a glowing cube to convince people you are from the future. To make this you will need: A LED (preferably high power) a 3 V coin cell battery a 100 Ohm resistor (anything close to 100 will work) a momentary or ...
    28-02-2008
  1. .. Sirichote Easy build and use, the general purpose Big LED with SPI serial interfacing. Expandable for multiple digits but still uses only three wires for receiving data from ...
    31-03-2008
  1. .. lamp to be more powerful, so it could also be used in daylight conditions. I did this by using a z-power 3 Watt RGB power led. This one led is far more powerful than the 12 ones combined i used before. The colors also mix better because of ...
    17-04-2008
  2. .. all inexpensive commercial LED flashlights use a 4.5 V power supply three AA or AAA batteries because white LEDs require 3.3 to 3.5 V to fully ...
    08-02-2009
  3. .. Inspired by various LED Throwies, blinking LEDs and similar instructables I wanted to do my version of an LED controlled by a ...
    29-03-2009
  4. .. biasing techniques in designing circuits for -48-V systems. The technique described here provides a dimming control for an LED. The circuit uses a 65-V hysteretically controlled LED driver ( MAX16822A ) with its ground pin connected to -48 V ...
    25-06-2009
  5. .. a simple circuit, the MAX IIZ CPLD from Altera can measure the analog-light level of its environment and then drive an LED at a proportional analog intensity level. A single LED can both sense and emit light with the same LED and bias ...
    13-07-2009
  6. .. Please note that the brake current is obtained by paralleling R2 and R3 values. Use high brightness, high efficiency red LED types of suitable size and change R2 and R3 values to suit LED's Absolute Maximum Ratings. Any Schottky-barrier ...
    05-08-2009
  7. .. Forrest Introduction This circuit is a dimmable white LED lamp array with 18 LEDs. The lamp brightness is regulated as long as the input voltage is above 10.5V. A ...
    24-02-2010
  8. Circuits Supply Light LT3517 LT3518 LTC4412 PB137
    .. their high efficiency and control simplicity. The circuit in provides a highly efficient and reliable design for emergency LED lighting at 3 to 6 W. The circuit's input is 12 V ac, which the full-wave bridge rectifies and one or two ...
    03-08-2010

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