Circuits & Schematics Light: led - 11

Subsection: "Light"
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  Colour Organ   LEDs
Search results: 137 Output: 101-110
  1. .. work is licensed under a Creative Commons License. This project is featured on pcbheaven.com This project is a full color LED-controller that can be configured via a USB connection. The color of the connected LEDs (common anode only) depends ...
    21-04-2010
  1. .. 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
  1. .. (Fig. 1a). The improved version requires only one additional resistor (Fig. 1b). It can be designed for most reasonable LED voltages and supply voltages, as well as to yield the desired on currents in each LED, which may be different if ...
    03-12-2009
  2. .. is here (450 kB PDF file). So whatsa Joule Thief? It's a little wisp of a circuit that allows you to drive a blue or white LED from a low voltage. Normally, if you want to light up a blue or white LED you need to provide it with 3 - 3.5 V, ...
    25-11-2009
  3. .. which I can select using the little button. A year ago, I didn’t have any sort of enclosure in mind. The led array was assembled on a ’standard’ sized protoboard, so I probably thought about using a plastic or ...
    23-11-2009
  4. .. (5mm) 1x 16f648a or 16f628a microcontroller 5x 74373 tri-state buffers / latches 1x 27C512 / 27E512 EPROM / EEPROM 1x IR LED 1x Photo Diode 1x 2n2222 NPN Transistor 24x 100 ohm resistors 4x 10k resistors 1x DC motor
    19-11-2009
  5. .. drifting, but the other videos do have the sensor and therefor remain in the one position. The sensor is made of an IR LED shining straight into a photo diode. When there is nothing interrupting the signal, the photo diode has max current ...
    11-11-2009
  6. .. electronic projects This was my first attempt at a nice and colourful RGB LED POV Display. POV stands for persistence of vision. The circuit uses just 8 RGB leds which are mounted vertically ...
    10-11-2009
  7. .. eye. So looking around at my fellow cyclists rear lights, I came up with the idea of 'NITE-RIDER'. NINE extra bright LED's running from left to right and right to left continuously. It could be constructed with red LEDs for use on the ...
    18-08-2009
  8. .. 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

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