Global Sources
EE Times-India
Stay in touch with EE Times India
EE Times-India > Optoelectronics/Displays

Using current source drivers to boost series-connected LED output

Posted: 20 Apr 2007     Print Version  Bookmark and Share

Keywords:series-connected LED  buckboost converter  constant-current LED driver  power-stage topology 

For optimum performance, high brightness LEDs should be driven by a current source rather than by a voltage source. This article examines the design of a constant-current LED driver that can be used for driving a string of series-connected LEDs. The number of series-connected LEDs can vary from one to several. To drive the LEDs, the power-stage topology is a modified buckboost converter.

View the PDF document for more information.

Comment on "Using current source drivers to boos..."
*  You can enter [0] more charecters.
*Verify code:


Visit Asia Webinars to learn about the latest in technology and get practical design tips.


Go to top             Connect on Facebook      Follow us on Twitter      Follow us on Orkut

Back to Top