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A small signal equivalent circuit of single common-emitter amplifier is shown in Figure Q1.b with quiescent collector current of 5 mA and a total of 1 k. The transistor parameters are ß = 100, r = 20N, Rç = 286, C₁ = 2 pF,fr = 200 MHz. 1) Deduce the values of gm С fß. 2) Calculate the low-frequency voltage gain Vo/Vs. 1 [Hint: fr = BfBi ÍB = 2(C+Cu) ßfß; fß Rs b V be Ib b' T₂C₁=C₂= |V₂ DRY 08_C_GORD gmV₁ e Figure Q1.b Cs Rc R₁

A small signal equivalent circuit of single common-emitter amplifier is shown in Figure Q1.b with quiescent collector current of 5 mA and a total of 1 k. The transistor parameters are ß = 100, r = 20N, Rç = 286, C₁ = 2 pF,fr = 200 MHz. 1) Deduce the values of gm С fß. 2) Calculate the low-frequency voltage gain Vo/Vs. 1 [Hint: fr = BfBi ÍB = 2(C+Cu) ßfß; fß Rs b V be Ib b' T₂C₁=C₂= |V₂ DRY 08_C_GORD gmV₁ e Figure Q1.b Cs Rc R₁

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 small signal equivalent circuit of single common-emitter amplifier is shown in Figure Q1.b with quiescent collector current of 5 mA and a total of 1 k. The transistor parameters are ß = 100, r = 200, Rs = 286, C₁ = 2 pF, fr = 200 MHz. 1) Deduce the values of 9m, Cfß. 2) Calculate the low-frequency voltage gain Vo/Vs. 1 [Hint: fr = Bfpi f = 2 (G+Cu) fß: Vs Rs b V be Ib b' ₁₂C₁=C₁= IT Figure Q1.b gmV 2 ro C₂ Cs Rc RL
Transcribed Image Text:A small signal equivalent circuit of single common-emitter amplifier is shown in Figure Q1.b with quiescent collector current of 5 mA and a total of 1 k. The transistor parameters are ß = 100, r = 200, Rs = 286, C₁ = 2 pF, fr = 200 MHz. 1) Deduce the values of 9m, Cfß. 2) Calculate the low-frequency voltage gain Vo/Vs. 1 [Hint: fr = Bfpi f = 2 (G+Cu) fß: Vs Rs b V be Ib b' ₁₂C₁=C₁= IT Figure Q1.b gmV 2 ro C₂ Cs Rc RL
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