DCVM模式下的高功率因数Cuk变换器的研究

Study on High Power Factor Cuk Converter on DCVM Mode

首先介绍了不连续电容电压模式(DCVM模式)下的Cuk电路的运行特征,分析了该模式下Cuk电路的3种工作状态。因DCVM模式的Cuk变换器的平均输入电流波形自动地跟踪了输入电压的波形,从而使变换器的功率因数大大提高,达到了功率因数校正的目的,并依此提出了对该电路设计所需的一些参数计算方案。

This article introduces the parameters of Cuk converter based on DCVM mode and analyzes three working states of the CUK circuit.Because of the average input current waveform of Cuk converter model for DCVM automatically tracking the input voltage waveform,it greatly improves the converter＇s power factor and corrects the power factor,and we present the calculation program for circuit design parameters.