阿摩線上測驗
登入
首頁
>
研究所、轉學考(插大)◆電子學
>
110年 - 110 國立中央大學_碩士班招生考試_光電類：電子學#105504
>
題組內容
3.(25%) For the following circuit, 3 identical nMOSFETs are used with Vt = 1 V, k
n
=
(a) Please find the reference current (IREF) for the current mirror.
其他申論題
(c) For R1= 1 kΩ and C1 = 0.1 μF, find R2and C2 so that the band-pass filter has a resonant frequency at 1600 Hz and unity peak gain. (6%)
#448423
(d) Draw the Bode plot for the magnitude of the band-pass filter in (c). (5%).
#448424
(e) For the band-pass filter in (c), find the gain of the resonance peak. (3%)
#448425
(1) Find R2 and C2 which can increase the peak gain to 10. (8%)
#448426
5% (b) If a load 2 kΩ is connected at the drain, please find and output resistance
#448428
5% (c) If now the load 2 kΩ is connected at the drain with a capacitor C, what is the minimal C to operate this circuit at.You can assume this is the only capacitor seem from this circuit.
#448429
10% (d) if now the load 5kΩ is moved from the drain to the source with a capacitor. What are the ?
#448430
(5%) (a) What is the conducting current () for the BJT differential pair?
#448431
(5%) (b) Since R1 and R2 are different, what is the resulted offset voltage () at input? (hints: you can estimate this by dividing the output offset by the differential gain, Ad).
#448432
(15%) (c) Please plot the corresponding output waveforrns at Voi and vo2 if the synchronized sinusoidal waves are both 10 KHz with amplitude 1mV. You should note the polarity at base is opposite for Q1 and Q2. (hints: you can calculate the DC voltage at and then calculate amplification at each side.)Assume that the current source is ideal with an infinite resistance.
#448433
阿摩線上測驗
登入
阿摩線上測驗
登入