[問題] 虛短路條件之一的負回授
剛剛在念op 突然想到一個問題
smith書上的試子
V1-V2=vo/A
在理想OP下
A為無限大
所以在V1=V2的條件有二
1. A無限大
2. Vo為有現值(介於線性區
所以代表只要滿足以上就會虛短路
可是達成以上條件一定要藉由負回授嗎?
我的問題主要是這個
謝謝:)
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