功率因数校正（PFC）手册

会员3847

电源专题资料：安美森的《功率因数校正（PFC）手册》，中文的，比较难得！

目录
前言··············································4
第一章 功率因数校正方法概述·································· 5
引言··············································5
定义··············································5
功率因数转换器的类型······································6
无源控制器···········································7
临界导电模式控制器·······································8
连续导电模式控制器·······································10
平均电流模式控制器·······································11
第二章 比较有源PFC方法的方法学·································18
方法的选择···········································18
测试方法学···········································19
比较准则············································20
第三章 临界导电模式(CRM) PFC和直流-直流段···························21
功率因数转换器模式，传统升压法和跟随升压法的比较························21
150W临界导电模式PFC设计实例·································22
结果··············································24
传统升压法和跟随升压法各自的优缺点·······························24
120W直流-直流设计实例·····································26
第四章 连续导电模式(CCM) PFC ·································28
150 W连续导电模式PFC设计实例·································28
结果··············································32
120W单段PFC反激设计实例···································33
结果··············································38
第五章 四种方法的详细分析和结果································39
预调节器段分析·········································39
全功率段的分析结果·······································41
趋势图·············································42
第六章 EMI考虑事项·······································44
背景··············································44
EMI测量结果··········································44
对CRM转换器的更改·······································47
对CCM转换器的更改·······································48
参考文献············································49
附录··············································50
补充文档
AND8016 使用Greenline™小型功率因数控制器MC33260设计功率因数校正电路·············57
AND8106 100瓦通用输入PFC转换器································67
AND8123 在临界导电模式下运行的功率因数校正段·························73
AND8124 90瓦通用输入单段PFC转换器······························91
AND8147 一种获得适用于分布式系统的单段PFC和步降转换的创新方法················100

会员88592

很好，PFC就是“功率因数”的意思，主要用来表征电子产品对电能的利用效率。功率因数越高，说明电能的利用效率越高。

无源PFC怎样计算才是最合适的呢

[ 本帖最后由 南流 于 2008-11-15 22:16 编辑 ]

会员40247

这书写的太麻繁了
pfc就是线圈 几个元件

会员3847

原帖由 仙羽 于 2008-12-14 06:06 发表

                               
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这书写的太麻繁了
pfc就是线圈 几个元件

是那么简单吗？可见你知道的太少。

会员9098

请问无用功部份能量以什么形式释放了？因为能量总是要守恒的。