Answered: The parameters for each transistor in…

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 parameters for each transistor in the circuit shown in Figure P6.75 are
β = 100 and VA = ∞. (a) Determine the small-signal parameters gm , rπ ,
and ro for both transistors. (b) Determine the small-signal voltage gain
Av1 = vo1/vs, assuming vo1 is connected to an open circuit, and determine
the gain Av2 = vo/vo1. (c) Determine the overall small-signal voltage gain
Av = vo/vs. Compare the overall gain with the product Av1 · Av2, using the
values calculated in part (b)

Vcc = +10 V
Rc2 =
%3D
R1 =
80 kΩ
RCi =
2 ΚΩ
R3 =
85 k2
4 kΩ
CcC3
Vol
Cci
Q1 Cc2
Q2
R1 =
C 4 k2
R4 =
R2 =
20 k2 SREI =
31 kQ
RE2 =
0.5 kQ
Vs
15 k2
:CEL
:CE2
Figure P6.75
ww

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