湖南工业大学学报Issue(2)：52-55,4.DOI:10.3969/j.issn.1673-9833.2014.02.011
基于UC3846的有源嵌位单级PFC开关电源
UC3846-Based Active Clamp and Single-Stage PFC Switched Power Supply
摘要
Abstract
A constant voltage source based on PWM control chip UC3846 is designed, which applies to the 175~265 V AC input voltage, and the rated output voltage is 24 V and output current is 2 A. The single stage PFC-three terminal correction technique is used to enhance the power factor of the system;meanwhile,the active clamping-soft switch technology is used to reduce the switch stress and improve the output efficiency of the power. The simulation and physical test shows that the input power factor of the constant voltage source is 0.992 and the system efficiency reaches 88%under the rated load.关键词
UC3846/单级PFC/有源嵌位/软开关Key words
UC3846/single-stage PFC/active clamping/soft switch分类
信息技术与安全科学引用本文复制引用
文立群,肖强晖..基于UC3846的有源嵌位单级PFC开关电源[J].湖南工业大学学报,2014,(2):52-55,4.基金项目
湖南省教育厅基金资助项目 （）
