摘要
采用连续导电模式的电压跟随式PFC与传统PFC不同,其输出电压随着输入电压和输出功率的变化而变化,在相同的条件下,其升压电感和功率器件的体积和损耗可以大大降低。本文在分析电压跟随式PFC的工作原理基础上,采用Matlab/Simulink7.0对其进行了仿真分析,评基于专用PFC控制芯片NCP1653进行了实验,获得的结果与理论分析相吻合,说明这种PFC方案能够获得良好的校正效果,适用于小功率应用场合。
Output voltage of follower boosts PFC with continuous conduction mode changes with variation of input voltage and power demand. In the same conditions, the size and losses of the PFC circuit inductor and power components Can be reduced significantly. On the basis of detailed theoretical analysis, the simulation results using Matlab/Simulink7.0 are shown. Experiential results based on dedicated PFC controller NCP1653 are also given. The results of simulation and experiment are consistent with those of theoretical analysis, showing the good efficiency of follower boost PFC, which is an ideal candidate for applications of low power.
出处
《变频器世界》
2007年第1期52-55,共4页
The World of Inverters
基金
国家自然科学基金项目资金支持(资助号:50377025)
