103關務電子學與電路學 - 考試
By Enid
at 2014-05-03T20:59
at 2014-05-03T20:59
Table of Contents
※ 引述《ksxo (aa)》之銘言:
: 前兩題
: http://wwwc.moex.gov.tw/ExamQuesFiles/Question/103/103050_10760.pdf
: 自己在家算的 覺得答案好像怪怪的 研究一下吧
: 一、
: (一)
: 10^-5
: ----- = e^(0.7-V_BE)/VT => V_BE=0.58 => R=0.58/10^-5 = 58k Ω
: 10^-3
: (二) rπ = VT/IB = 260k Ω
: (三) ro = VA/IC = 10M Ω
: (四) Rout = 1+ro-R gm ro rπ/(R+2re+rπ) = 187.33M Ω
: 二、
: (一)並並 B = If/Vo = -0.005
: Rib=1.99k Ω Rob=100.05k Ω
: (二)A= Rs||Rib||Rid x μ x Rob||RL / (ro + Rob||RL) =-4378827 V/A
: Ri=Rs||Rib||Rid=0.6612k Ω Ro = Rob||RL = 1.961k Ω
: Af = Vo/Is =A/(1+AB) = 200 V/A
: Vo/Vs = -0.2 V/V
: Rif=0.302Ω Rof = 0.09Ω => Rin=0.302Ω Rof=0.09Ω
http://ppt.cc/SUfl
http://ppt.cc/VL9M
--
(」〒□〒)」茂吉~~~~~~~~~~~~~!
--
: 前兩題
: http://wwwc.moex.gov.tw/ExamQuesFiles/Question/103/103050_10760.pdf
: 自己在家算的 覺得答案好像怪怪的 研究一下吧
: 一、
: (一)
: 10^-5
: ----- = e^(0.7-V_BE)/VT => V_BE=0.58 => R=0.58/10^-5 = 58k Ω
: 10^-3
: (二) rπ = VT/IB = 260k Ω
: (三) ro = VA/IC = 10M Ω
: (四) Rout = 1+ro-R gm ro rπ/(R+2re+rπ) = 187.33M Ω
: 二、
: (一)並並 B = If/Vo = -0.005
: Rib=1.99k Ω Rob=100.05k Ω
: (二)A= Rs||Rib||Rid x μ x Rob||RL / (ro + Rob||RL) =-4378827 V/A
: Ri=Rs||Rib||Rid=0.6612k Ω Ro = Rob||RL = 1.961k Ω
: Af = Vo/Is =A/(1+AB) = 200 V/A
: Vo/Vs = -0.2 V/V
: Rif=0.302Ω Rof = 0.09Ω => Rin=0.302Ω Rof=0.09Ω
http://ppt.cc/SUfl
http://ppt.cc/VL9M
--
(」〒□〒)」茂吉~~~~~~~~~~~~~!
--
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