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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.

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)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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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.

+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)
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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