作者labuladuo (拉布拉多)
看板Electronics
標題[問題] BJT另一問
時間Fri Aug 17 00:32:55 2007
V_DD
which one of the following is NOT true
○
∣ if the value of R_E increase:
|
R_L (A)input resistance increase
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|——○ v_OUT (B)output resistance increase
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/ (C)transcontance increase
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v_IN ○—— (D)the negative feedback is enhanced
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↘ C是一定錯 我想問B選項 輸出電阻不是R_L嗎
︱
︱ R_E增加對輸出電阻不是沒影響 解答只給C
R_E
︱ 是不是還要加個B選項啊
︱
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推 DamonF1:B選項如果考慮 Ro的話,就對了y 08/17 00:46
推 labuladuo:忘記考慮r_o了...感謝樓上~ 08/18 00:32