The multistage amplifier circuit of Figure Q.2(b) have the following parameters: Q1 and Q2 : β = 200, VBE = 0.7 V, VT = 26 mV , VA = ∞ Given that ICQ1 = 2 mA and VCEQ1 = 2 V. (i) Determine the value for RB4. List the assumption/approximation made in the analysis. (ii) Sketch and label the small-signal hybrid-π equivalent circuit at midband frequency range. (iii) Calculate the small signal hybrid-π model parameters: gm and rπ for Q1 and Q2. Then, determine Zi2 and Zo.
The multistage amplifier circuit of Figure Q.2(b) have the following parameters: Q1 and Q2 : β = 200, VBE = 0.7 V, VT = 26 mV , VA = ∞ Given that ICQ1 = 2 mA and VCEQ1 = 2 V. (i) Determine the value for RB4. List the assumption/approximation made in the analysis. (ii) Sketch and label the small-signal hybrid-π equivalent circuit at midband frequency range. (iii) Calculate the small signal hybrid-π model parameters: gm and rπ for Q1 and Q2. Then, determine Zi2 and Zo.
Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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The multistage amplifier circuit of Figure Q.2(b) have the following parameters:
Q1 and Q2 : β = 200, VBE = 0.7 V, VT = 26 mV , VA = ∞
Given that ICQ1 = 2 mA and VCEQ1 = 2 V.
(i) Determine the value for RB4. List the assumption/approximation made in the analysis.
(ii) Sketch and label the small-signal hybrid-π equivalent circuit at midband
frequency range.
(iii) Calculate the small signal hybrid-π model parameters: gm and rπ for Q1 and Q2. Then, determine Zi2 and Zo.
Transcribed Image Text:+15 V
Rc
3.3 k2
Ra
10 k2
100 k2
HE
C4
Rs
RL
Va
10k2
100 2
Ruz
50 k2
RB4
RE
2 k2
Z,
Figure Q.2(b)
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