摘要
提出了设计直流电源变换器（ＤＣ－ＤＣ）线路滤波器应遵循的原则，分析了其设计方法，最后给出了设计实例──程控交换机直流电源变换器线路滤波器的设计结果．
The principle which should be follow to design the line filter of DC-DCpower converter is presented, and the design method for the filter is analysed. An exampleis given to design line-filter for the first power source of program-controling exchanger.
