概述了利用电容膜降低PWB噪声的方法，可以有效地降低电源-地线层之间的谐振和电源脉动电压。
This paper describes the method of Lowering PWB noise using condenser film, can lower resonance between the power supply layer and the ground layer and power supply ripple voltage effectively.
目前国内外电动车直流驱动功率变换器使储能电源输出电流从零到电机电枢电流高频脉动，不利于延长动力电池的使用寿命。
At present power converters of DC driving system make power supply outputs a high-frequency pulsating current, which is from zero to the armature current. This large ripple damages batteries.
全固态脉冲雷达发射机中，电源的负载是一个脉动的负载，其设计不同于常规电源。
In an all solid state pulsed radar transmitter, the load of power supply is a pulse one, which is designed unlike normal power supplies.
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