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PFC功率因数校正芯片选择

Other Parts Discussed in Thread: UCC28063, UCC28180, UCC28019A

问题描述:做一个UPS,功率为100W,要求为蓄电池充电48V,前端要加功率因数校正电路,要求显示,且功率大于90%,麻烦推荐个芯片,或者电路。

问题帖子链接:http://www.deyisupport.com/question_answer/analog/power_management/f/24/t/75101.aspx

TI FAE:Max Han, Frank 1,推荐了Ucc28019A,Ucc28180,Ucc28063。

考虑到做小功率PFC电源满足90%效率的话,推荐用L6562N做。它采用的是临界电流模式APFC,且电路设计比较简单。另外网上关于6562PFC电路设计也比较成熟,附件里面也有相关的参考资料。

基于L6562A的APFC设计_张锦吉.pdf