電子學問題 - 考試
By Lauren
at 2014-04-04T19:34
at 2014-04-04T19:34
Table of Contents
一負回授放大器,其回授電路純由電阻組成,其開迴路增益為 10^5
並具有三個極點頻率(Pole Frequency) 分別為 fa = 10^6 Hz, fb = 10^7 Hz,
fc = 10^8 Hz
則此回授放大器的可能振盪頻率
(A) 低於 fa
(B) 介於 fa~fb
(C) 介於 fb~fc
(D) 高於 fc
這題我不是很懂
請高手解說
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