(c) A common-emitter amplifier circuit and its voltage transfer characteristic curve are shown in Fig. 1(c). Assume that the transistor common emitter current gain B = 150 and VBE (on) = 0.7 V. Determine the input voltage at the point X, such that the transistor goes to Vce (sat). Vcc = 12 V Vo(V) Cutoff Vcc Rc= Ic 14 k2 Vo IB Active VCE + Rp= 80 k2 VBE (on) VCE (sat) = Saturation 0.3V V, 0 VeE (on) X V(V) Fig. 1(c)

(c) A common-emitter amplifier circuit and its voltage transfer characteristic curve are shown in Fig. 1(c). Assume that the transistor common emitter current gain B = 150 and VBE (on) = 0.7 V. Determine the input voltage at the point X, such that the transistor goes to Vce (sat). Vcc = 12 V Vo(V) Cutoff Vcc Rc= Ic 14 k2 Vo IB Active VCE + Rp= 80 k2 VBE (on) VCE (sat) = Saturation 0.3V V, 0 VeE (on) X V(V) Fig. 1(c)

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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Concept explainers

Multistage Amplifier

The multistage amplifier is generally a voltage or power amplifier. The multistage amplifier has a number of single stage amplifier that are cascaded together. Since a single stage amplifier output is not useful, they are being replaced with multistage amplifiers or multistage transistor amplifiers. The multistage amplifier are used where the gain required is high or the input signal is very small such that only a single stage amplifier cannot amplify it.

Question

(c) A common-emitter amplifier circuit and its voltage transfer characteristic curve are shown
in Fig. 1(c). Assume that the transistor common emitter current gain B = 150 and
VBE (on) = 0.7 V. Determine the input voltage at the point X, such that the transistor goes
to VcE (sat).
Vcc = 12 V
Vo(V)
Cutoff
Vcc
Rc =
Ic { 1.4 k2
Vo
+
Active
VCE
+
Rp=
80 kΩ
VBE (on)
Vce (sat) =
Saturation
0.3V
V,
0 Ver(on) X
V(V)
Fig. 1(c)

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