AN2623脱线正向转 ϝ ϝ 换器评估板基于L5991

AN2623脱线正向转 ϝ ϝ 换器评估板基于L5991

AN2623
Application note
Evaluation board
for off-line forward converter based on L5991

Introduction
This application note gives a practical example of a 160 W, isolated, forward converter using
the L5991, high frequency current mode PWM controller. Design procedures for both the
power stage and controller are presented.
Generally for this power level the norm ICE61000-3-2 imposes the use of a PFC pre-
regulator stage, but some countries do not re