Design-Oriented Analysis and Performance Evaluation of Buck PFC Front-End
Design-Oriented Analysis and Performance Evaluation of Buck PFC Front-End
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DOI：
10.1109/apec.2009.4802811
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发表时间：
2009-03
期刊：
影响因子：
--
通讯作者：
L. Huber;L. Gang;M. Jovanovic
中科院分区：
文献类型：
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作者：
L. Huber;L. Gang;M. Jovanovic
在需要PFC的通用线AC/DC转换器中，在整个负载范围内保持高效率是一个重大挑战。通常，与230 V线路相比，升压PFC前端在100 V线路下的效率低1-3%。本文表明，输出电压在80 V范围内的降压PFC前端可以在整个线路范围内保持高效率。全面分析了降压PFC转换器的工作原理和性能，并提供了沿着的设计优化指南。提供了在90 W笔记本适配器上获得的实验结果。
In universal-line ac/dc converters that require PFC, maintaining a high efficiency across the entire load range poses a major challenge. Typically, a boost PFC front-end exhibits 1-3% lower efficiency at 100-V line compared to that at 230-V line. It is shown in this paper that a buck PFC front end with an output voltage in the 80-V range can maintain a high-efficiency across the entire line range. A thorough analysis of the buck PFC converter operation and performance along with design optimization guidelines are presented. Experimental results obtained on a 90-W notebook adapter are provided.