带充电泵单级PFC电路的AC/DC变换器  

A Novel AC/DC Converter with Charge Pump Single Stage PFC

作　　者：刘学超[1] 张波[1] 余建生[1] 

机构地区：[1]华南理工大学电力学院,广州510640

出　　处：《电工技术学报》2004年第11期46-49,86,共5页Transactions of China Electrotechnical Society

摘　　要：提出一种新型带充电泵单级 PFC 电路的 AC/DC 变换器。文章阐述了利用充电泵电路实现高功率因数校正的理论,分析了该变换器的工作原理,同时讨论了主要参数设计思路。最后给出 28V/6A 实验样机测试结果,表明该变换器能实现高功率因数校正,电路简单实用,同时兼有低待机损耗和钳位电路功能,能广泛应用于数字视频电源中。A novel AC/DC converter with charge pump single stage Power factor correction (PFC)circuit is proposed. This low cost technology significantly improves power factor and input current harmonics. The operation principle of this converter is analyzed, which includes the PFC realization and main parameters design method. A 28V/6A prototype was built to verify the operation of this novel converter. The experimental result showed that the converter can achieve high power factor and make circuit simplicity with low standby power and voltage clamp function. The topology can be widely used in TV sets and digital versatile disc players’ power supply applications.

关 键 词：充电泵 功率因数校正 AC/DC变换器 

分 类 号：TM46[电气工程—电器]