For a class B power amplifier, show that the maximum efficiency is 78.5%.For a class B amplifier providing a 20V peak-to-peak signal to an 8 speaker and apower supply of Vec 15V, determine:i)%3DInput powerii)Output poweriii)Circuit efficiency

1) For class-B amplifier Maximum output power is calculated as P0(max)=product of RMS value of AC…

For a class B power amplifier, show that the maximum efficieney is 78.5%. For a class B amplifier providing a 20V peak-to-peak signal to an 8 Q speaker and a power supply of Vec15V, determine: i) ii) iii) Input power Output power Circuit efficiency

For a class B power amplifier, show that the maximum efficieney is 78.5%. For a class B amplifier providing a 20V peak-to-peak signal to an 8 Q speaker and a power supply of Vec15V, determine: i) ii) iii) Input power Output power Circuit efficiency

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

Power Amplifier

The power amplifier is an electronic amplifier designed to maximize the signal strength of a given input. The input signal strength is enhanced to a high enough level to drive output devices such as speakers, headphones, RF (Radio frequency) transmitters, etc. Unlike voltage / current amplifiers, the power amplifier is designed to drive core loads directly and is used as a storage block in the amplifier series.

Maximum Efficiency Criterion

In every field of engineering, there is a tremendous use of the machine and all those machines are equipped for their popular work efficiency so it very much important for operation engineers to monitor the efficiency of the machine, planning engineers to check out the efficiency of the machine before installing the machine and design engineers to design machine for higher efficiency than and then the utility will procure their products that will ultimately lead to profit and loss of the company. It indicates the importance of efficiency right from the initial stage as manufacturing units, intermediate stage as planning coordinators, and end-users stage as a utility.

Question

For a class B power amplifier, show that the maximum efficiency is 78.5%.
For a class B amplifier providing a 20V peak-to-peak signal to an 8 speaker and a
power supply of Vec 15V, determine:
i)
%3D
Input power
ii)
Output power
iii)
Circuit efficiency

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