PI has recently published a Design Example Report (DER) for a dimmable high-line LED lamp. This design incorporates PI's new series of LYTSwitch-4 high-line ICs.
DER-395 is a 14.5 W non-isolated tapped-buck design for a PAR30 LED driver. It works with a wide selection of TRIAC dimmers, has a fast start-up time (<200 ms), and is highly efficient (>86% at 230 VAC).
DER-395 also includes the following features: