Considerations for the Design and Implementation of a Low Cost Integrated Driver for LED's Lighting Applications of Low and High Voltage (6V - 120V)

The increasing usage of Light Emitting Diodes (LEDs) to address different lighting applications such as traffic signals, exit signs, backlighting and general illumination have made them very popular to the point where they are now an attractive choice for all those lighting applications that were once the domain of incandescent lamps. LEDs have several advantages when compared with incandescent lamps. They offer fast turn-on, lower heat generation, lower power consumption, higher operating life, and high resistance to shock/vibration. Nevertheless, LEDs need to be driven properly to ensure optimal performance and long life. Designing and implementingan effective driver is key to obtain all the benefits of LEDs. The driver’s implementation must be cost effective, which is not usually achieved with discrete components but with integrated solutions.