LED street lamp driver circuits - how to design them

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Christopher Richardson, systems applications engineer for lighting at National Semiconductor, investigates LED street lamp driver circuits.

In an in-depth article recently added to the site, he considers driver topologies, DC bus voltages, and design challenges with buck regulators.

He begins:
In many consumer applications for lighting the cost of existing technology - namely incandescent light bulbs or fluorescent tubes - is so low that LED lighting's many advantages simply cannot make up for the increase in initial cost.
Street lighting is notably different because the long life and high degree of control that solid-state lighting provides are coupled with an end-user - government - that evaluates cost of ownership along with initial cost.
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LED Lighting guides

See also Electronics Weekly's roundup of content related to LEDs, with a special focus on both white LEDs and coloured LEDs, and Lighting LEDs.

* White LEDs

* Coloured LEDs

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* LEDs General

* LED optics

* OLEDs

* 50 year history of the LED








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Author Profiles

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.jpgIan 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.

About this Entry

This page contains a single entry by Alun Williams - Electronics Weekly.com published on September 30, 2009 11:48 AM.

Top 10 LEDs for lighting - Cree LRP-38 was the previous entry in this blog.

1W of infra red light from an LED is the next entry in this blog.

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