一种非线性载波控制的功率因数变换电路

A Power-factor Converter Based on Nonlinear-carrier Control

基于非线性载波(Nonlinear Carrier,简称NLC)控制技术,设计了一台250 W的单相功率因数校正(Power Factor Correction简称PFC)变换器。该变换器主电路采用常规的Boost电路,通过检测电感电流,实现非线性载波控制,获得了变换电路的高功率因数。文中分析了非线性载波控制的功率因数校正电路的工作原理,给出了电路的详细设计方法和相应的实验结果。

A 250 W single-phase power factor correction converter based on nonlinear-carrier（NLC） control technique is proposed.By employing nonlinear-carrier control strategy with the inductor current sensing,the power factor is implemented.The principle of operations is analyzed, the designed considerations and procedures are discussed, and the relevant experimental results are also presented.