摘要
通过分析Boost型APFC(有源功率因数校正)电路在CCM(电流连续模式)控制方式下的两种不同的工作模式,推导出主电路升压电感的数学表达式.通过理论上的分析得出该种电路的功率因数(PF)是不可能完全为一而只能近似为一的结论.又对电路做了仿真试验,分析比较了在电感取不同值时的输入电流的波形,对波形进行了傅立叶分析.为同类型电路的设计提供了很有价值的参考.
In this paper, two different work modes of Boost-type APFC circuit under the control mode of CCM are analyzed and the algebraic expressions to calculate the boost inductor are deduced. From the theoretical analysis of the expressions, the conclusion that the PF of the circuit can not be unity but only be closed to unity is acquired. By comparison and Fourier analysis of the waveshapes of the input current with different values of the inductor in the experiment, the valuable references are attained in the same type circuit design.
出处
《河北工业大学学报》
CAS
2007年第6期32-36,共5页
Journal of Hebei University of Technology
关键词
有源功率因数校正
电流连续模式
傅立叶分析
升压电感
active power factor correction
continuous-current-mode
fourier analysis
boost inductor
