基于SEPIC的功率因数校正电路的参数设计与分析  

Parameter Design Research of Power Factor Correction Circuit Based on SEPIC

作　　者：张洋[1] 龚春英[1] 

机构地区：[1]南京航空航天大学航空电源重点实验室,江苏南京210016

出　　处：《电源技术应用》2003年第11期29-33,共5页Power Supply Technologles and Applications

摘　　要：介绍了一种基于SEPIC的功率因数校正电路的工作原理,给出了输入电流和二倍线频纹波电压的详细推导过程,分析了占空比大小对于输入电流畸变的影响,给出了主电路和电压补偿器的设计原则。The operation principle of a power factor correction circuit based on SFPIC is mtroduced. The detailed derivation of input current and donble-line frequency output voltage ripplc are presented. The influence of cyelc duty on THD to input current is analysed and the design criteria for power stage and voltage compeusator are also presented. Parameters of a SEPIC-PFC circuit based on these criteria are given. The introduced theory analysises and desigus are verified by simulations.

关 键 词：单端初级电感变换器 SEPIC 功率因数校正电路 参数设计 工作原理 

分 类 号：TN624[电子电信—电路与系统]