電子學 迴授相關 - 考試
By Tracy
at 2013-06-30T15:30
at 2013-06-30T15:30
Table of Contents
[考題] 國考歷屆考題與考題觀念討論(書裡看到的選這個)請附上想法、出處
題目源自於中華電信100年電子學選擇題21題
觀察一迴路增益之波德圖,請問下列何種條件代表系統為不穩定
1. 相位邊限(Phase Margin)為 -45 度
2. 相位邊限為 45 度
3. 增益邊限(Gain Margin)為 6dB
4. 增益邊限為 2 倍
答案是 1
想請問 相位邊限 跟 增益邊限 在什麼範圍是穩定 什麼範圍是不穩定的
感謝
--
題目源自於中華電信100年電子學選擇題21題
觀察一迴路增益之波德圖,請問下列何種條件代表系統為不穩定
1. 相位邊限(Phase Margin)為 -45 度
2. 相位邊限為 45 度
3. 增益邊限(Gain Margin)為 6dB
4. 增益邊限為 2 倍
答案是 1
想請問 相位邊限 跟 增益邊限 在什麼範圍是穩定 什麼範圍是不穩定的
感謝
--
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