360–800 Hz变导通时间控制CRM Boost PFC变换器中电容效应的分析与改进

In critical conduction mode (CRM) boost power factor correction (PFC) converters, the input filter capacitor (IFC) is used to limit the propagation of switching noise into the ac line and the inherently existing parasitic capacitance of power semiconductor devices resonates with the boost inductor to achieve soft switching, which is voltage dependent and nonlinear. However, IFC leads to the crosso...