带功率半导体滤波器的开关变换器EMI特性建模与实验评估

An input filtering technology named “power semiconductor filter (PSF)” has been proposed recently. Its operating principle is based on using a series pass device (SPD) to profile the wave shape and magnitude of the input current of converters. The voltage across the SPD is regulated around the “knee point” of the current-voltage characteristic of the SPD to minimize the power dissipation of the SP...