AN3027如何设计一个过渡模式PFC预调节器的L6563S和L6563H

AN3027如何设计一个过渡模式PFC预调节器的L6563S和L6563H

AN3027
Application note
How to design a transition-mode PFC pre-regulator
with the L6563S and L6563H

Introduction
The transition-mode (TM) technique is widely used for power factor correction in low and
middle power applications such as lamp ballasts, high-end adapters, flatscreen TVs and
monitors, PC power supplies and all SMPS having to meet regulations in harmonics
reduction. The L6563S and L6563H are the latest devices from STMicroelectronics for these
applications that may require a low-cost power fac