采樣電路如圖1所示，IGBT開(kāi)關(guān)頻率為7khz，逆變器輸出電壓經(jīng)調(diào)理電路后，采樣波形如圖2。采用圖3的濾波方法后，共模造影明顯消除。波形如圖4
圖1
圖2
圖3
圖4
采是什么樣
電壓，什么電路
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