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Search results: 142   Output: 51-60
  1. This is a easy to build LED lamp circuit for Learning and building skills. This is the first draft schematic V 1.0. It will need improvements for Higher Power Lighting. Click to enlarge I will give a short summary, The LM317 here configured for ...
    04-12-2010
  2. Marián Štofka, Bratislava By varying the current through red and green LEDs, you can vary the hue in 32 steps. The circuit in Figure 1, which lets you create light of 32 of hues, uses red and green LEDs. A constant current divides ...
    10-11-2010
  3. Toon Beerten Introduction In this page we will introduce a great project designed by Toon Beerten. His project named DIY Led Mood Lamp can become a very interesting add-on for your room that's absolutely sure it will impress everyone. As you can ...
    08-11-2010
  4. Introduction A pulse width modulator (PWM) is a device that may be used as an efficient light dimmer or DC motor speed controller. The circuit described here is for a general purpose device that can control DC devices which draw up to a few amps of ...
    15-10-2010
  5. Introduction DC powered LED lighting circuits can vary from trivial single LED/series resistor combos to simple analog current regulators to more complicated switching power supply circuits such as this project. There is a tradeoff between ...
    15-10-2010
  6. Forrest Cook Introduction This circuit is for a solar powered white LED with automatic activation in the dark. It can be used for both indoor and outdoor night light applications. For indoor uses, if the circuit is operated near another lamp, it ...
    15-10-2010
  7. T.K. Hareendran This Outdoor LED Solar Garden Lights project is a hobby circuit of an automatic garden light using a LDR and 6V/5W solar panel. During day time, the internal rechargeable 6 Volt SLA battery receives charging current from the ...
    12-10-2010
  8. The project uses 7 RGB LEDs arranged in the form of dice.Each RGB LED has three separate LEDs inside so that makes a total of 21 LEDs and they have been controlled by 4 I/O pins of ATTiny13V Microcontroller.But according to the theory of ...
    11-10-2010
  9. Zhihong Yu, Juno Lighting Group, Des Plaines, IL; Edited by Martin Rowe and Fran Granville Power three to six LEDs from an ac- or dc-power source and charge a backup battery. LEDs find wide use in emergency lighting because of their high efficiency ...
    Circuits » Supply · Light » LT3517, LT3518, LTC4412, PB137
    03-08-2010
  10. Steffen Schütte Microcontroller : Microchip PIC18F2550 Sensor : DS18S20 temperature sensor Video: Temperature based color control CPU load based color control Screen based color control License: The source code of this work is licensed under a ...
    21-04-2010
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