第八章 飞兆半导体LED芯片选型.pdf

Fairchild LED Power Solutions May 2009 Kenfa Qian/钱家法 Kenfa.qian@ Fairchild Technical Support Center_Shenzhen Copyright © 2009 Fairchild Semiconductor 1 LED Lighting 电源拓扑 LED Lighting 室内照明，装饰灯 室内照明，室外照明 室外照明，街灯 特种照明 ~25W ~25W 25~100W 100~500W 非隔离: 降压,升压 被动式 PFC +反激 Active PFC + Flyback 汽车照明 Non-isolation PassivePFC+Flyback (100~150W) Buck Boost 反激: 原边反馈 单级PFC Active PFC +QR Flyback 鱼诱饵 Flyback: PSR Single Stage PFC (100~150W) 主动式PFC + 反激 PFC + LLC Resonant Active PFC + Flyback (100W~) PFC + AHB(不对称半桥) (100W~) Copyright © 2009 Fairchild Semiconductor 2 Fairchild LED Lighting Solutions 装饰灯 (~ 25W) 室内/室外 (25 ~ 100W) 街灯 Street (100W~) 非隔离Non-Isolation 隔离 Isolation topology BUCK PSR CRM PFC Flyback PFC+QRC LLC AHB Flyback Single Stage Combo Resonant FAN7700(*) FAN100 FAN7527B FAN6300 FAN6921(*) FAN7621 FAN7622(*) FAN7701(*) FAN102 FAN6961