基于UC3852的限频临界断续模式APFC

作者：叶奇峰，郦强，邓焰 日期：2007-10-24/span> 浏览：4143 查看PDF文档

基于UC3852的限频临界断续模式APFC

叶奇峰，郦强，邓焰
（浙江大学 电力电子研究所，浙江 杭州 310027）

摘要：通过对临界断续模式有源功率因数校正（APFC）工作原理的分析，指出了该种变换器由于开关频率可变，在高输入电压时将增加开关损耗以及EMI滤波难度。提出了利用控制芯片UC3852N限制开关频率以优化变换性能的方案。通过所研制的一台300 W样机，证实了该方案的可行性。
关键词：临界断续模式；有源功率因数校正（APFC）；限频；UC3852
中图分类号：TM714.1文献标识码：A文章编号：1001-4551(2007)09-0098-04

Frequency limited critical conduction mode APFC based on UC3852
YE Qifeng, LI Qiang, DENG Yan
(Power Electronics Research Institute, Zhejiang University, Hangzhou 310027, China)
Abstract: Due to the variable switching frequency, the active power factor correction（APFC） operated in criticalconduction mode led to more switching loss and EMI problem at high input voltage, based on the principle analysis of the converter. A new method was presented to optimize the performance by limiting the switching frequency, based on the relevant function of UC3852N. A 300 W prototype was developed and the result is validated.
Key words: criticalconduction mode;  active power factor correction(APFC);  limitingfrequency; UC3852

参考文献(Reference)：
［1］郦强.控制策略与功率器件对有源功率因数校正器性能影响的研究［D］.杭州：浙江大学电气工程学院,2005.
［2］周志敏,周纪海,纪爱华,等.开关电源功率因数校正电路设计与应用：1版［M］.北京:人民邮电出版社，2004.
［3］LAI J S, CHEN D. Design consideration for power factor correction boost converter operating at the boundary of continuous conduction mode and discontinuous conduction mode［C］. APEC 93. Conference Proceeding 1993, Eight 7-11 March 1993:267-273.
［4］ANDREYCAK B. Power factor correction using the UC3852 cotrolled ontime zero current switching technique［M］∥Unilrode application note, V132. USA: Unitrode Inc., 1996.
［5］TAO F F, LEE F C. A CriticalConductionMode SingleStage PowerFactorCorrection electronic ballast［C］∥APEC 2000. Fifteenth Annual IEEE Volume 1, 6-10 Feb. 2000:603-609.