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A transistor amplifier which uses a npn BJT and various passive components is shown in figure Q1. A table of components values is shown in Table Q1. For this amplifier: a) Calculate the following dc voltages and currents; V8, VE, le and le. b) Draw ar parameter ac small-signal model. The model should be correctly labelled with transistor voltages and all small-signal parameters. Detail assumptions and limitations. c) Calculate the small-signal input resistance Rin, output resistance Rout and output voltage Vout. Detail assumptions and limitations. d) Calculate the small-signal voltage and current gain Av and A. Also calculate the output voltage. Vcc Rs R V R R: Figure Q1 R1= 40 kQ Vcc = 10 V R3 = 2 kQ Vin = 10 mV Table of Component values and Transistor Parameters R2 = 10 kQ VT = 24 mV R4 = 1 kQ B = 200 VBE = 0.7 V C=2mF

A transistor amplifier which uses a npn BJT and various passive components is shown in figure Q1. A table of components values is shown in Table Q1. For this amplifier: a) Calculate the following dc voltages and currents; V8, VE, le and le. b) Draw ar parameter ac small-signal model. The model should be correctly labelled with transistor voltages and all small-signal parameters. Detail assumptions and limitations. c) Calculate the small-signal input resistance Rin, output resistance Rout and output voltage Vout. Detail assumptions and limitations. d) Calculate the small-signal voltage and current gain Av and A. Also calculate the output voltage. Vcc Rs R V R R: Figure Q1 R1= 40 kQ Vcc = 10 V R3 = 2 kQ Vin = 10 mV Table of Component values and Transistor Parameters R2 = 10 kQ VT = 24 mV R4 = 1 kQ B = 200 VBE = 0.7 V C=2mF

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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A transistor amplifier which uses a npn BJT and various passive components is shown in figure Q1. A table of components values is shown in Table Q1. For this amplifier: a) Calculate the following dc voltages and currents; VB, VE, le and le. b) Draw a r parameter ac small-signal model. The model should be correctly labelled with transistor voltages and all small-signal parameters. Detail assumptions and limitations. c) Calculate the small-signal input resistance Rin, output resistance Rout and output voltage Vout. Detail assumptions and limitations. d) Calculate the small-signal voltage and current gain Av and A. Also calculate the output voltage. Vcc R3 R. R: Figure Q1 R3 = 2 kQ Vin = 10 mV Table of Component values and Transistor Parameters R2 = 10 kQ VT = 24 mV R1 = 40 kQ R4 = 1 kQ VBE = 0.7 V B = 200 %3D Vcc = 10 V C=2mF
Transcribed Image Text:A transistor amplifier which uses a npn BJT and various passive components is shown in figure Q1. A table of components values is shown in Table Q1. For this amplifier: a) Calculate the following dc voltages and currents; VB, VE, le and le. b) Draw a r parameter ac small-signal model. The model should be correctly labelled with transistor voltages and all small-signal parameters. Detail assumptions and limitations. c) Calculate the small-signal input resistance Rin, output resistance Rout and output voltage Vout. Detail assumptions and limitations. d) Calculate the small-signal voltage and current gain Av and A. Also calculate the output voltage. Vcc R3 R. R: Figure Q1 R3 = 2 kQ Vin = 10 mV Table of Component values and Transistor Parameters R2 = 10 kQ VT = 24 mV R1 = 40 kQ R4 = 1 kQ VBE = 0.7 V B = 200 %3D Vcc = 10 V C=2mF
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