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寻求一个缩小大功率DCDC电源的EMC电路的方法

目前正在使用一款500W的半砖DCDC模块,其应用手册中要求加上EMC防护电路(如下图)

但是在设计阶段中发现其体积超标,在逛论坛时发现有一款有源EMI滤波器能减小其共模电感的体积

现在想寻求解决方案与设计