LED lighting circuit design idea

By Alun Williams - Electronics Weekly.com on May 13, 2010 12:01 PM | No Comments | No TrackBacks

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One for designers seeking ciruit inspiration, maybe. We have uploadeed an LED-related Circuit Design idea to the site - Create LED-lighting patterns without a controller

This Design Idea describes a simple LED-lighting-effects circuit comprising only five chips and costing only a few dollars. The goal is to create hundreds of patterns with a few timers and logic gates.

The circuit design was created by Jeff Tregre of www.BuildingUltimateModels.com

He begins:

When you first observe the circuit in action, you will think that it uses a PIC (peripheral-interface-controller) chip requiring you to program hundreds of lines of code to generate the lighting effects. Click here to view the lighting effects in a video.

The circuit comprises seven functional blocks (Figure 1). IC1 is an LM556, which has two 555 timers in one package. The first timer produces the main clock frequency of approximately 0.105 Hz. It toggles high to low approximately every 10 seconds.

Read the full Circuit Design Idea >>

See all Circuit Design Ideas

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Displays

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Circuit Design

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Paul Ward
As Opto Product Manager at Farnell, Paul is overseeing the company's involvement in the rapidly evolving and high profile LED lighting market sector.

As well as ensuring that Farnell offers the latest technologies and products related to solid state lighting, Paul is also responsible for ensuring that the resources are in place to make it easier for design engineers to specify and design-in LED solutions for their applications.

Educated in Production Engineering and Design at Sheffield Hallam University, Paul has worked in various engineering, training and marketing roles for companies including C&K switches, ITT Cannon, Cherry and LED specialist Chicago Miniature Lighting.

Away from the world of LEDs, Paul is a Founder of the charity RTTW, Photographer and Harley Davidson rider; he has ridden and snapped across Europe, New Zealand and the USA on his chrome hog!

Gordon Routledge
Gordon Routledge is one of the original pioneers in LED illumination having worked with LEDs in illumination applications since 1996. Currently VP of Illumination at Dialight, Gordon founded Lumidrives in 2001, having previously been managing director at ACDC Lighting Systems. Gordon has a degree in Electrical & Electronic Engineering from university of Manchester Institute of Science and Technology.

Ian Bryant
Ian Bryant is Business Development Manager LED Division at Carclo Technical Plastics. He has worked on and off at Carclo (Formerly Combined Optical Industrial) since leaving school. He has worked through the company from Toolmaking to starting the company on the road of LED optics business some 6-7 years ago, starting with a standard range and more in line with the business of custom optics. In between all this he has worked in engineering and as a works Director for a hydraulics company but kept getting pulled back to the optics industrial. We are able to offer the full solution from idea to parts so have a very good understanding on what is needed. You will see some posts from our design team also under my name.