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3. (20 points) Consider the cascade connection of the two amplifiers shown in Figure 3. Vil 2M02 First stage www 500 £2 200 V₁1 + V12 R₁2 150 92 Second stage Roz www 100 S2 50%2 Figure 3. a. Find the current gain A/1 = I12/11 for the first stage. b. Find the current gain A₁2 = 102/12 for the second stage. + V02 RL 500 £2 Load c. Find the overall simplified current model for the cascade connection.

3. (20 points) Consider the cascade connection of the two amplifiers shown in Figure 3. Vil 2M02 First stage www 500 £2 200 V₁1 + V12 R₁2 150 92 Second stage Roz www 100 S2 50%2 Figure 3. a. Find the current gain A/1 = I12/11 for the first stage. b. Find the current gain A₁2 = 102/12 for the second stage. + V02 RL 500 £2 Load c. Find the overall simplified current model for the cascade connection.

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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Just: c. Find the overall simplified current model for the cascade connection.

**Exercise on Cascade Amplifiers (20 points)** Consider the cascade connection of the two amplifiers shown in Figure 3. **Diagram Overview:** Figure 3 shows a cascade connection consisting of two stages: - **First stage:** - Input voltage (\(v_{i1}\)) and input current (\(i_{i1}\)). - Resistor (\(R_{i1} = 2 \, \text{M}\Omega\)). - Amplifier with gain block labeled \(200 \, v_{i2}\). - Output components consist of a resistor (\(R_{o1} = 500 \, \Omega\)) in parallel configuration. - **Second stage:** - Resistor (\(R_{i2} = 150 \, \Omega\)). - Amplifier with gain block labeled \(50 \, v_{o2}\). - Output components consist of a resistor (\(R_{o2} = 100 \, \Omega\)) in parallel configuration. - **Load:** - Resistor (\(R_L = 500 \, \Omega\)) connected as the load. **Tasks:** a. Find the current gain \(A_{i1} = i_{i2}/i_{i1}\) for the first stage. b. Find the current gain \(A_{i2} = i_{o2}/i_{i2}\) for the second stage. c. Find the overall simplified current model for the cascade connection.
Transcribed Image Text:**Exercise on Cascade Amplifiers (20 points)** Consider the cascade connection of the two amplifiers shown in Figure 3. **Diagram Overview:** Figure 3 shows a cascade connection consisting of two stages: - **First stage:** - Input voltage (\(v_{i1}\)) and input current (\(i_{i1}\)). - Resistor (\(R_{i1} = 2 \, \text{M}\Omega\)). - Amplifier with gain block labeled \(200 \, v_{i2}\). - Output components consist of a resistor (\(R_{o1} = 500 \, \Omega\)) in parallel configuration. - **Second stage:** - Resistor (\(R_{i2} = 150 \, \Omega\)). - Amplifier with gain block labeled \(50 \, v_{o2}\). - Output components consist of a resistor (\(R_{o2} = 100 \, \Omega\)) in parallel configuration. - **Load:** - Resistor (\(R_L = 500 \, \Omega\)) connected as the load. **Tasks:** a. Find the current gain \(A_{i1} = i_{i2}/i_{i1}\) for the first stage. b. Find the current gain \(A_{i2} = i_{o2}/i_{i2}\) for the second stage. c. Find the overall simplified current model for the cascade connection.
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