Characterizing LED Performance with a Frequency Response Analyzer and Line Injector
This application note series by Steve Sandler explores the measurement of the dynamic resistance of an LED and how to create a usable SPICE model from the data. Today, LEDs dominate the lighting industry, replacing incandescent, CFL, and halogen bulbs. They are much more efficient at saving power, and as semiconductor devices, they should be much more reliable. Most LEDs are powered by constant current drivers in order to maintain uniform lighting in parallel strings with mat