作者icybeauty (小甜心)
站內Physics
標題[問題] 請問internal coupling的解法
時間Sun Nov 25 08:19:41 2007
※ [本文轉錄自 Electronics 看板]
作者: icybeauty (小甜心) 站內: Electronics
標題: [問題] 請問internal coupling的解法
時間: Sun Nov 25 08:15:40 2007
請大家幫忙,我那在 Cin//Rin 數值不知道怎麼求
Cin=1/jwC,缺少w不是算不出來嗎?
=============================================
Rs=100k ohm
Rin=100nF
Cin(in parallell connection with the input resistance)
Open-circuit voltage gain=100(V/V)
Rout=100 ohm
Question:(a)What's the overall voltage gain
(b)If a voltage follower(Rin= infinite，A=1，Rout=0) is sandwiched
between，what is the overall voltage gain
============================================================================
the overall voltage gain=Vs/Vo=(Vs/Vi)*(Vi/Vo)
但是就卡在電容與電阻串聯不知道怎麼解
(b)的答案是不是同(a)?
謝謝大家回答
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