[問題] buck 輸入電流震盪...該怎麼解決
各位先進好~
小弟在實作buck電路又碰到問題~故想請問一下先進們
就是我輸入電流會有振盪現象
但卻不知該如何解決
波型圖與電路圖如下
http://0rz.tw/H34tf
http://0rz.tw/wTZpn
CH1(黃) :二極體跨壓
CH2(藍) : 輸入電流
CH3(粉紅) :mos DS 電壓
展開後分別為
http://0rz.tw/bMYjS
http://0rz.tw/bxi0y
然後我改電路圖中的C1 R1 C2的值
好像會有改善...
但完全不知道原理
只能一直try
因此特來向各位先進討教
謝謝
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