AN1089 L6561基于TM PFC的控制环路建模

AN1089 L6561基于TM PFC的控制环路建模

AN1089
APPLICATION NOTE

CONTROL LOOP MODELING OF L6561-BASED TM PFC
by Claudio Adragna


This paper provides a model and a tool for evaluating and improving the control loop characteristics
of L6561-based PFC preregulators in boost topology and operated in Transition Mode (TM).
Such a subject is now becoming topical since TM PFC preregulators are more and more used in sys-
tems other than electronic lamp ballast where the input voltage range is limited and the load current
is almost constant.
The ability to o