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led constant current schematic

LED Constant Current

P. Marian - 12/17/13

This is a very simple led constant current design using only 2 transistors, 2 resistors and an LED. [...]
arduino icicle lights schematic

Arduino Icicle Lights with LEDs

P. Marian - 12/14/13

I had the idea of building this Arduino icicle lights project during the making of the light dimmer [...]
solar road marker circuit

Solar LED Road Marker (Road Stud)

T.K. Hareendran - 12/05/13

Roadway lighting systems are now widely accepted as essential for controlling traffic flow in a wide number of [...]
led at 220 volt

LED at 220V Circuit

P. Marian - 10/16/13

LED has become more and more popular for use as light indicator because of its low cost and [...]
LED Dimmer Control Schematic

Current Controlled LED Dimmer

Jim Keith - 10/11/13

The occasion for this project was retrofitting an illuminated wall picture with LED backlighting. As soon as I [...]
fluorescent lamp driver schematic

Fluorescent Light Driver

joribo - 09/26/13

Fluorescent light driver, my project No. 10 (versions 1 to 9 will be reported when I have my [...]
led lantern circuit

Portable LED Lantern

T.K. Hareendran - 08/19/13

This circuit is a simple emergency light with 20 “white straw hat” LEDs. One advantage of this little [...]
Soft Start for Flashlights Schematic

Soft Start for Flashlights

GaryC - 07/28/13

Application: A project with only 2 parts, but is great for addressing an everyday situation that is irritating [...]
infrared beam break detector circuit

Infrared Beam Break Detector

P. Marian - 07/25/13

Application An infrared detector that sounds a buzzer when an IR beam is broken, meaning the IR signal [...]
light operated light switch circuit schematic

Light-Operated Solid State Light Switch

P. Marian - 06/27/13

Here is a light-operated light switch circuit built with solid state components that is used to operate a [...]
touch light switch schematic

Simple Touch Light Switch Circuit

P. Marian - 06/25/13

This is a very simple touch light switch circuit that uses the 4011 IC, one transistor and a [...]
ADP1649 LED Flash Driver

ADP1649 1A LED Flash Driver

P. Marian - 06/11/13

The ADP1649 is a very compact, highly efficient, single white LED flash driver for high resolution camera phones [...]
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