NCP1013LEDGEVB, Evaluation Board using NCP1013 current mode PWM controller, 5 W universal LED driver. The controller used in this application is a low cost monolithic design, the NCP1013. The design comprises an input filter, bridge rectifier, bulk capacitors and a line inductor, the power stage, rectifier diode and smoothing capacitors. Feedback is CVCC, constant current drive for the LED's with a constant voltage in the event of an open circuit output