Fairchild FSFR2100 200W LED电源参考设计
Fairchild 公司的FEB271 200W电源参考设计是采用FSFR2100 功率开关,通用输入电压从90VAC到265VAC,总输出功率200W,有六个DC输出,每个电压为48V,电流为0.7A,也可改变成0.35A/96V.本文介绍了FEB271 200W电源参考设计的主要电路和所用材料清单,主要器件包括FAN6961PFC控制器, FSFR2100功率开关, FOD2741光绝缘误差放大器和SG6858 / SG6859 PWM控制器的主要特性和方框图.此外还介绍了用于驱动LED的其它电路.
High Power Factor LED Ballast using FSFR2100 Fairchild Power Switch (FPSTM) for Resonant Half-Bridge Converter and FAN7529 PFC Controller This document describes the proposed solution for a 200 W Power Supply using the FSFR2100 Fairchild Power Switch (FPS). The input voltage range is 90 – 265 VRMS and there are six outputs with 0.7A / 48V max. each. The board consists of a high power factor pre-regulator based on the FAN6961 voltage mode PFC controller and an isolated DC/DC converter based on a resonant LLC topology.
This document contains the power supply specification, schematic, bill of materials and transformer documentation.
200W电源主要指标:
Universal AC Input Voltage ( 90 – 265 VRMS)
Total Output Power 200 W
Six DC Outputs with Constant Current: 0.7A / 48V max. each ( can be changed to 0.35A / 96V max.)
图1. 200W电源外形图
图2. 200W电源电路图(1)
图3. 200W电源电路(2)
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