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>> 單元名稱：電晶體偏壓電路量測

>> 單元名稱：電晶體偏壓電路量測. 國立瑞芳高級工業職業學校 電子科 教學觀摩教學內容. > 教學科目：電工實習. >>> 示範教師：吳新忠 老師. 5. 教學大綱. １ . 電腦模擬軟體（ Multisim ）介紹. ２ . 各點電壓及各支路電流之量測方法. ３ . 電路一： CE 放大固定偏壓電路. ４ . 電路二： CE 放大射極迴路偏壓電路. ５ . 電路三： CE 放大集極迴路偏壓電路. ６ . 學生上機模擬練習. 6. １ . 電腦模擬軟體（ Multisim ）介紹. 具有超強的 電路繪圖 功能。. 具有 電阻、電壓、電流 測量之功能。.

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>> 單元名稱：電晶體偏壓電路量測

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  1. >>單元名稱：電晶體偏壓電路量測 國立瑞芳高級工業職業學校 電子科教學觀摩教學內容 >教學科目：電工實習 >>>示範教師：吳新忠 老師 5

  2. 教學大綱 １.電腦模擬軟體（Multisim）介紹 ２.各點電壓及各支路電流之量測方法 ３.電路一：CE放大固定偏壓電路 ４.電路二：CE放大射極迴路偏壓電路 ５.電路三：CE放大集極迴路偏壓電路 ６.學生上機模擬練習 6

  3. １.電腦模擬軟體（Multisim）介紹 • 具有超強的電路繪圖功能。 • 具有電阻、電壓、電流測量之功能。 • 具有波形觀測之功能。 • 具有立即呈現該電路功能之效果。 >>> 請看示範 7

  4. ２.各點電壓及各支路電流之量測方法 • 測量電壓時，電壓表要與測量物並聯。 • 測量電流時，先將該支路開路後，再與電流表串聯。 >>> 請看示範 8

  5. ３.電路一：CE放大固定偏壓電路 Vcc - VBE 10 - 0.7 IB = = R2 1M = 9.3μ A IC = 9.3μA × 100 IB × β = = 0.93m A β=100 VBE=0.7v VCE = - IC × R1 Vcc = 10 - 0.93m A × 1k >>> 請看示範 9 = 9.07v

  6. ４.電路二：CE放大射極迴路偏壓電路 Vcc - VBE 10 - 0.7 IB = = R2 + (1+β)R4 1M +(1+100)200 = 9.1μ A IC = 9.1μA × 100 IB × β = = 0.91m A β=100 VBE=0.7v - IE × R4 VCE = - IC × R1 Vcc - 0.91m A × 200 = 10 - 0.91m A × 1k >>> 請看示範 = 10 8.9v

  7. ５.電路三：CE放大集極迴路偏壓電路 Vcc - VBE 10 - 0.7 IB = = R2 + (1+β)R1 1M +(1+100)1K = 8.45μ A IC = 8.45μA × 100 IB × β = = 0.845m A β=100 VBE=0.7v IE × R1 VCE = - Vcc = 10 - 0.845m A × 1k >>> 請看示範 = 11 9.155v

  8. ６.學生上機模擬練習 ◎請按照實習工作單之步驟，依序操作。 ◎ 有疑問時，隨時舉手發問。 ** 記得科主任常說：按圖施工，保證成功 ** 12

  9. 謝謝指教 13

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