Key Steps to Design A Compact, High-Efficiency PFC Stage Using NCP1623A

Housed in either SOIC−8 or TSOP−6 packages, the NCP1623A is an extremely compact PFC controller designed to optimize the efficiency of your PFC stage throughout the load range. It also incorporates protection features for a rugged operation. More generally, NCP1623A is ideal in systems where cost−effectiveness, reliability, high power−factor and efficiency ratios are key requirements. This paper describes the key steps to rapidly design a CrM/DCM PFC stage driven by the NCP1623. The process is illustrated in a practical 100−W, universal mains application. To continue reading and learn more download the application note.