Circuits & Schematics Light: led

1. LED Umbrella For Grass
   Circuits Light Medicine
   Dave Clausen The problem: Grass dies without strong sunlight. The solution: Construct a grow light that doesn't consume a lot of power, doesn't block the natural sunlight, and produces natural-looking colors. Step 1: Solder up strings of red, ...
   02-11-2008

2. Discrete LED Color Organ
   Circuits Light Music
   .. to a different range of sound frequencies, one each for treble, midrange, and bass sounds. The signal is then sent to an LED bargraph ladder circuit, with red/yellow, green/white, and blue/green leds for each channel respectively. Two LEDs ...
   13-11-2008

3. Minimize Input-Supply Ripple Current In LED Driver Applications
   Circuits Supply Light Intersil EL7801
   .. Godil Electronic Design Consumer-based LED applications have really taken off. You now find them in home lighting, airplane cabin lights, automobile lights, ...
   04-07-2020
4. Flickering Fire Light - LED or Bulb flicker shimmer randomly like candle flame or fire
   Circuits Security Light
   This may well be the world's only discreet logic circuit to generate truely random output. It makes an excellent candle flicker light for your haloween pumpkin, and looks much more authentic than a shimmer light wherever a good a simulated ...
   08-03-2005
5. Inverting buck-boost converter regulates LED current
   Circuits Supply Light Texas Instruments TPS40200D
   .. the fewest components for a switching regulator and the lowest overall cost compared with other topologies. Because the LED output is light, it may not matter from a system level that the LEDs are biased on with negative rather than ...
   05-07-2020
6. Driving an LED with or Without a Resistor
   Circuits Light Microcontrollers Usage
   .. this post I will try to show, why it's a good idea to use a current limiting resistor for an LED. And when it's save to drive the LED without any resistor. If you read about LEDs, you will notice that everyone ...
   06-04-2009
7. Flash an LED from ac-mains power
   Circuits Supply Light Fairchild LM317
   .. Babu EDN LED technology is opening the door to a variety of high-power-illumination applications. The circuit in Figure 1 can ...
   26-07-2020
8. LED Cube
   Circuits Light
   .. brings me to something I saw a few months ago on MAKE. Bre and associates had constructed a simple 3 × 3 × 3 led cube, re-purposing a POV toy to drive the leds. I figured this would be a good easy project I could finish in a ...
   06-01-2008
9. Make an LED Fiber Optic Rose - Great Birthday or Valentines!
   Circuits Domestic Light
   .. optic rose and I’ll show you exactly how it’s done. Step 2 Wires, solder, and soldering gun (of course) 1 green led (I used 6000mcd) Found online 1 red led (6000mcd) Found online On-Off Switch (a few bucks at RADIO SHACK) Fiber ...
   23-10-2007
10. Cool LED flashing effects on a clock
    Circuits Domestic Light
    .. R Bakke modellfly [a] hotmail.com 12 LED's flashing in different random-driven patterns, some includes variable intensity (12 channel PWM). Mount the LED's ...
    25-11-2007

Sort by: relevance / date