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Lamp / Light Control Circuits   Page 7a
Lamp Controls:   #-A       B-D        E-H       I-N      L        M-N        P-R       S      T-U      V-Z
Last Updated on: Wednesday, November 29, 2017 05:40 AM

 

Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

LED Driven Tail/Brake Light Cluster -  LED driven tail/brake Light Cluster Constant current circuitry 12V Battery operation (added 3/05)
LED Lights for AC line -  Circuit diagram of an LED night light made by a north american manufacturer. Remarkably it only draws 100mW and has some surge voltage immunity. A clear plastic light pipe is used to diffuse the light from the LED into the room…. [Reverse engineered schematic by Stepan Novotill]
LED Mood Light -  This circuit makes a nice lamp that consumes little power, runs cool, and has an incredibly long lifetime. The lamp puts out a warm yellow shade of light, the color may be adjusted by changing the number of red or green LED strings.  [Circuit by Forrest Cook]
LED or Bulb flicker shimmer randomly like candle flame or fire  -  This may well be the world's only discreet logic circuit to generate truly random output. It makes an excellent candle flicker light for your Halloween pumpkin, and looks much more authentic than a shimmer light wherever a good a simulated flame effect is required. I do not guarantee the accuracy or safety of any information herein.  (added 2/05) [Circuit by Stepan Novotill]
LED or Incadescent 12 Volt Lamp Fader -  .... 
LED Pilot Light AC or DC -  LED current is constant between 6 and 8 mA at5 to30Vdc…. [Tony van Roon's circuit]
LED senses and displays ambient-light intensity -  9-Nov-06 Issue of EDN  LED doubles as photosensor and visual indicator of ambient-light intensity..... [Design Idea by Dhananjay V Gadre and Sheetal Vashist, ECE Division, Netaji Subhas Institute of Technology, New Delhi, India; Edited by Brad Thompson and Fran Granville]
LED Torch -  A common problem with small torches is the short life-span both of the batteries and the bulb. The average incandescent torch, for instance, consumes around 2 Watts. The LED Torch in Fig. 1 consumes just 24 mW, giving it more than80 times longer service from 4 AA alkaline batteries (that is, up to one month's continuous service)..... [Rev Thomas Scarborough]
 
LED Torch Circuits -  (design added 04/08)
LED Traffic Lights -  The LED traffic Light circuit controls 6 LEDs (red, yellow and green) for both north/south directions and east/west directions. The timing sequence is generated using a CMOS 4017 decade counter and a 555 timer. Counter outputs 1 through 4 are wire ORed using 4 diodes so that the (Red, North/South) and (Green, East/West) LEDs will be on during.... [Bill Bowden]
LED7 Solar Tracker -  (electronic circuit added 7/03)
LEDs or Lamps Sequencer -  Very simple, versatile modular design No limits to the number of modules used in the ring.....
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