LED Applications and Driving Techniques

by Chris Richardson, National Semiconductor, Vendor website, Jan 01 2007

Focus:
This 66-page presentation begins with an introduction to LED basics (how they work, how they developed into devices suitable for illumination, their notable characteristics) and LED applications before launching into details on the circuits and power conversion topologies used to drive them. Dimming techniques and factors affecting color and contrast ratio are also discussed. The presentation ends with a section describing the online design tools that support the company's LED drivers.

What you’ll learn:

• How to understand operation of LEDs as background for designing LED driver circuits
• How to select an LED driver topology: resistor-limiting, inductive versus charge pump, buck, boost, buck-boost (Cuk, SEPIC, floating)

Notes:
National Semiconductor Slide Presentation

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