In part 1 we discussed rectifying the ballast AC current to DC and we showed an open load protection circuit. Direct replacement of fluorescent tubes with LED assemblies can lead to uneven lighting.

Electronic ballasts used in fluorescent lighting systems can experience high failure rates, due to the fact that the ballast manufacturer may not have considered all failure mechanisms or provided ...

International Rectifier's (IR) IR2520D is a compact fluorescent lamp (CFL) ballast control IC that adapts to changing supply voltage, frequency and lamp conditions to increase lamp life and ...

Fluorescent dimming systems can satisfy visual comfort, and reduce utility costs through daylight harvesting, demand reduction, scheduled dimming, and other strategies. A dimming electronic ballast is ...

Power management specialist International Rectifier has introduced the Mini8, a compact fluorescent lamp ballast control IC that offers full programmability, accuracy and control for all lamp types.

Users can easily reduce energy usage with dimmers. Dimming technology has evolved considerably over the last decade, especially in the arc discharge lamp category. What began as a device for simply ...

New lamps are more efficient, but what about the electronics? Designers need to learn a few new tricks about driving LEDs and CFLs. It isn’t just more-efficient lighting that is driving down energy ...

If you want to improve lighting system efficiency, ballast selection is critical. Today's most popular energy-efficient lighting designs involve new ballasts. Because ballast technology is constantly ...

New integrated circuits promise to make fluorescent lamps more "green." Get ready for new rules from the Dept. of Energy. Next year, DOE will implement regulations effectively making it impossible to ...