DER-421 - 4 W Power Factor Corrected (Valley Fill) Non- Dimmable Isolated Flyback, Constant Voltage LED DriverThis engineering report describes a 4 W power supply that uses a LYTSwitch-2 IC, LYT2003D from the LYTSwitch-2 family, configured as a flyback. The power supply is specifically designed as an LED driver; however, it may also be used as a general evaluation platform for other applications that require constant voltage and constant current output. This document contains the power supply specification, schematics, bill of materials, transformer documentation, printed circuit layout, and performance data.
