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*7.130 The amplifier of Fig. P7.130 consists of two identical common-emitter amplifiers connected in cascade. Observe that the input resistance of the second stage, R2, constitutes the load resistance of the first stage. Rc (a) For Vec = 15 V, R, = 100 k2, R, = 47 k2, R̟ = 3.9 k2, R. = 6.8 kN, and B=100, determine the de col- lector current and de collector voltage of each Riz = 2.5 kN transistor. (b) Draw the small-signal equivalent circuit of the entire amplifier and give the values of all its components. (c) Find R_ and v,lv for R =5 k2. Vis (d) Find R and vglV1- (e) For R, =2 k2, find v Jv,- (f) Find the overall voltage gain v.Jvg- RE -3 V Figure P7.129 Load Stage 2 Source Stage 1 A Vcc 4 A Vcc 4 Rc RC R1 Ris Q: R2 R2 RE RE Rinl Figure P7.130

*7.130 The amplifier of Fig. P7.130 consists of two identical common-emitter amplifiers connected in cascade. Observe that the input resistance of the second stage, R2, constitutes the load resistance of the first stage. Rc (a) For Vec = 15 V, R, = 100 k2, R, = 47 k2, R̟ = 3.9 k2, R. = 6.8 kN, and B=100, determine the de col- lector current and de collector voltage of each Riz = 2.5 kN transistor. (b) Draw the small-signal equivalent circuit of the entire amplifier and give the values of all its components. (c) Find R_ and v,lv for R =5 k2. Vis (d) Find R and vglV1- (e) For R, =2 k2, find v Jv,- (f) Find the overall voltage gain v.Jvg- RE -3 V Figure P7.129 Load Stage 2 Source Stage 1 A Vcc 4 A Vcc 4 Rc RC R1 Ris Q: R2 R2 RE RE Rinl Figure P7.130

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
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Hi i  need 7.131 solved parts d), e) , f) 

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*7.130 The amplifier of Fig. P7.130 consists of two identical common-emitter amplifiers connected in cascade. Observe that the input resistance of the second stage, R2, constitutes the load resistance of the first stage. Rc (a) For Vec = 15 V, R, = 100 k2, R, = 47 k2, R̟ = 3.9 k2, R. = 6.8 kN, and B=100, determine the de col- lector current and de collector voltage of each Riz = 2.5 kN transistor. (b) Draw the small-signal equivalent circuit of the entire amplifier and give the values of all its components. (c) Find R_ and v,lv for R =5 k2. Vis (d) Find R and vglV1- (e) For R, =2 k2, find v Jv,- (f) Find the overall voltage gain v.Jvg- RE -3 V Figure P7.129 Load Stage 2 Source Stage 1 A Vcc 4 A Vcc 4 Rc RC R1 Ris Q: R2 R2 RE RE Rinl Figure P7.130
Transcribed Image Text:*7.130 The amplifier of Fig. P7.130 consists of two identical common-emitter amplifiers connected in cascade. Observe that the input resistance of the second stage, R2, constitutes the load resistance of the first stage. Rc (a) For Vec = 15 V, R, = 100 k2, R, = 47 k2, R̟ = 3.9 k2, R. = 6.8 kN, and B=100, determine the de col- lector current and de collector voltage of each Riz = 2.5 kN transistor. (b) Draw the small-signal equivalent circuit of the entire amplifier and give the values of all its components. (c) Find R_ and v,lv for R =5 k2. Vis (d) Find R and vglV1- (e) For R, =2 k2, find v Jv,- (f) Find the overall voltage gain v.Jvg- RE -3 V Figure P7.129 Load Stage 2 Source Stage 1 A Vcc 4 A Vcc 4 Rc RC R1 Ris Q: R2 R2 RE RE Rinl Figure P7.130
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