AN2749的40 W宽输入范围的反激式转换器为数字消费设备使用L6566B演示板

AN2749的40 W宽输入范围的反激式转换器为数字消费设备使用L6566B演示板

AN2749
Application note
40 W wide input range flyback converter demonstration board
for digital consumer equipment using the L6566B

Introduction
This document describes a demonstration board of a 40 W switch-mode power supply
dedicated to set-top box, DVD and auxiliary SMPS for flat TVs or small size flat screen
equipment. The board accepts a wide range of input voltages (90 to 265Vrms) and delivers
4 voltages. The design is based on the L6566B, a new current mode fixed frequency or QR
controller. High efficiency and low standby consumption are t