Electronic Circuits and electronic circuits, electronic schematics plus an extensive resource for hobbyists, inventors and engineers

DiscoverCircuits.com, has 26,000+ electronic circuits
or schematics carefully cross-referenced into 500+ categories.   As a vital resource for engineers, hobbyists, inventors & consultants, the site's collection of information will help you find quick solutions to electronic design problems.

   

Web www.discovercircuits.com
HOME Schematics Discover Forum Hobby Corner Dave's Circuits Electronic Resources Book Corner Contact Info


Dave's Circuits
Circuits designed by David Johnson, P.E.

Master Category List - Dave's Circuits
Last Updated on: Friday, July 18, 2008 11:33 AM


Freespace or Light Beam Communication     Fluorescent Lamp Circuits     Lamp Controls

5W FLUORESCENT LAMP INTENSITY MODULATOR
The circuit was designed to experiment with using small fluorescent lamps as a broad pattern source of modulated light. The circuit hits the small lamp with narrow 1us pulses at a rate of 10KHz. Each pulse launches about 10 watts of visible light. The lamp starting method is a bit crude but the circuit does work.

Click on Drawing Below to view PDF version of Schematic


5 Watt Fluoresent Lamp Modulation Test Circuit designed by Dave Johnson, P.E.

Freespace or Light Beam Communication     Fluorescent Lamp Circuits     Lamp Controls

Master Schematic Category List - David A. Johnson, P.E.

 

Copyright  2002 - 2008 David A. Johnson & Associates.  All Rights Reserved to the contents & graphics of Discovercircuits.com
Linking is welcomed but COPYING any content or graphics to your server is expressly prohibited.