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110年 - 110 國立臺灣大學_碩士班招生考試_生醫電子與資訊學研究所甲組:應用電子學(含電路學、二極體、電晶體及基本電路、放大器)#101254
> 申論題
題組內容
1. In Fig. 1, let the op amp be ideal:
(a) Please derive the transfer function (7%).
相關申論題
(b) Please sketch a Bode plot for the magnitude response (10%).
#424615
2. Assuming that the diodes in the circuits of Fig. 2 are ideal, please find the values of the labeled currents and voltages (8%).
#424616
(a) Please determine the amplifier input resistance, and the overall voltage gain. Assume ro of both transistors to be very large (12%).
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(b) Consider the circuit at low frequencies. Please find the frequency of the poles due to C1 and C2, and hence estimate the lower 3-dB frequency, fL (10%).
#424618
(c) Consider the circuit at higher frequencies. Please use open-circuit time constants to estimate fH (8%).
#424619
4. For the current-mirror-loaded differential amplifier in Fig. 4. Assume β = 100, = 0.7 V, IVAI = 60 V, Vt = 0.7 V, and k(WI) = 2 mA/V2. Please find: (a) differential input resistance (5%), (b) Ad (5%), and (c) CMRR (5%).
#424620
(a) Please determine Vc and ic during charge (4%).
#424621
(b) Through the charging process, are the capacitors in steady state? Please explain it 4(%).
#424622
(c) Please find the magnitude of the charge and energy stored on the 10- and 40-uF capacitors at t - 8 ms, respectively (4%). After 8 ms, the switch is opened.
#424623
(d) Please find Vc and ic during discharge (4%).
#424624
相關試卷
110年 - 110 國立臺灣大學_碩士班招生考試_生醫電子與資訊學研究所甲組:應用電子學(含電路學、二極體、電晶體及基本電路、放大器)#101254
110年 · #101254
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