DCM模式下带RC缓冲电路的Boost PFC变换器振荡分析及参数选择原则

The parasitic parameters of a boost power factor correction converter lead to input current distortion when the converter operates in discontinuous conduction mode, and using an RC snubber is a simple and effective way to suppress the parasitic oscillation. The effect of the RC snubber on the parasitic oscillation is analyzed in detail, and three different forms of the characteristic roots are obt...