[Al Skierkiewicz]

Originally Posted by Kevin Watson

Why would you need to reverse the polarity of the PWM'd output? Using a tri-color LED like this one, the idea would be to use three separate PWM'd drivers to drive the three different LEDs contained within the package. By changing the intensity of each primary color, you can derive many different blended colors.

-Kevin

I was thinking of the bicolor devices that are two colors back to back with one of the diodes reverse wired.