biased to operate in the active mode. Assuming that B is very large, find the collector bias current I. Replace the transistor with the small-signal equivalent-circuit model of Fig. 7.27(b) (remember to replace the de power supply with a short circuit). Analyze the resulting amplifier equivalent circuit to show that RE R, +r, -aR. Rf+r, Find the values of these voltage gains (for a 1). Now, if the terminal labeled v, is connected to ground, what does the voltage gain v/v, become? +5 V Re = 3.3 k2 100 kn 100 kN R = 3.6 kN

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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*7.58 The transistor in the circuit shown in Fig. P7.58 is
biased to operate in the active mode. Assuming that B is
very large, find the collector bias current Ie. Replace the
transistor with the small-signal equivalent-circuit model of
Fig. 7.27(b) (remember to replace the de power supply with
a short circuit). Analyze the resulting amplifier equivalent
circuit to show that
RE
R +r.
-aR.
%3D
v,
R; +r,
Find the values of these voltage gains (for a 2 1). Now, if
the terminal labeled v, is connected to ground, what does the
voltage gain v/v, become?
+5 V
Rc = 3.3 kN
100 kΩ
100 kΩ
R = 3.6 kN
Figure P7.58
Transcribed Image Text:*7.58 The transistor in the circuit shown in Fig. P7.58 is biased to operate in the active mode. Assuming that B is very large, find the collector bias current Ie. Replace the transistor with the small-signal equivalent-circuit model of Fig. 7.27(b) (remember to replace the de power supply with a short circuit). Analyze the resulting amplifier equivalent circuit to show that RE R +r. -aR. %3D v, R; +r, Find the values of these voltage gains (for a 2 1). Now, if the terminal labeled v, is connected to ground, what does the voltage gain v/v, become? +5 V Rc = 3.3 kN 100 kΩ 100 kΩ R = 3.6 kN Figure P7.58
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