Answered: 3. For the power amplifier circuit in…

3. For the power amplifier circuit in Figure A: d) If the circuit is biased at its center voltage and center collector operating point, what is the input power for a maximum output power of 3W?

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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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

3. For the power amplifier circuit in Figure A:
d) If the circuit is biased at its center voltage and center collector operating point, what is
the input power for a maximum output power of 3W?
Vcc = 20 V
Rg
I kQ
Rc = 20 Q
B = 25
Marking Scheme:
1. Calculation using correct Formulae

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