Design And Construction Of A 2000W Power Amplifier With 2 Vip Micriphone, Vcd Player And 2 External Speaker Of 150W
Embarking on the design and construction of a robust 2000W power amplifier system integrating two VIP microphones, a VCD player, and a pair of 150W external speakers necessitates meticulous planning and execution. This endeavor involves the selection of premium-grade electronic components, including high-capacity capacitors, transistors, and transformers, to ensure optimal power handling and efficiency. By integrating advanced circuitry and efficient heat dissipation mechanisms, the amplifier can deliver crisp and immersive audio output, catering to various applications ranging from live performances to professional audio setups. Furthermore, careful consideration is given to the integration of input and output interfaces, facilitating seamless connectivity with audio sources and speaker systems. Through comprehensive testing and calibration procedures, the amplifier system is fine-tuned to achieve unparalleled audio fidelity and performance, elevating the listening experience for audiences and users alike.
ABSTRACT
This work is titled the design and construction of 2000w power amplifier with 2 VIP microphone, VCD player and 2 external speaker of 150w. 2000W power amplifier is a device for increasing the audio power of a signal by use of an external energy source. It is design to meet up with the amplification demand in homes, offices, industries and especially in music industries. Power amplifier amplifies low-power audio signals (signals composed primarily of frequencies between 20Hz – 20kHz, the human range of hearing) to a level suitable for driving loudspeakers and is the final stage in a typical audio playback chain, While the input signal to an audio amplifier may measure only a few hundred microwatts, its output may be tens, hundreds, or thousands of watts.
The purpose of this is design an amplifier with 2 VIP microphone, VCD player and two external 150w speaker was designed which is the aim of this work
This amplifier when produced in large or commercial quality, according to purpose will create job opportunity, provide indigenous electronics technology industry, and it will contribute to economic growth of the nation.
TABLE OF CONTENTS
Title Page
Approval Page
Dedication
Acknowledgement
Abstract
Table of Content
CHAPTER ONE
1.0 Introduction
1.1 Objective of the project
1.3 Application of the project
CHAPTER TWO
2.0 Literature review
2.1 Historical background of an amplifier
2.2 Review of classification of power amplifiers
2.3 Classification according to mode of operation
2.4 Review of transistor biasing
CHAPTER THREE
3.0 Construction
3.1 Block diagram of an audio power amplifier
3.2 Circuit diagram of a 2000w amplifier
3.3 Circuit operation
3.4 Circuit description
3.5 Power supply circuit
3.6 Parts list of 2000 watt amplifier circuit
3.7 Description of components used
CHAPTER FOUR
RESULT ANALYSIS
4.0 Construction Procedure and Testing
4.1 Casing and Packaging
4.2 Assembling of Sections
4.3 Testing of System Operation
4.4 Cost Analysis
CHAPTER FIVE
5.1 summary
5.2 References
CHAPTER ONE
1.0 INTRODUCTION
An audio power amplifier is an electronic amplifier that amplifies low-power audio signals (signals composed primarily of frequencies between 20 – 200k Hz, the human range of hearing) to a level suitable for driving loudspeakers. It is the final electronic stage in a typical audio playback chain.
Power Amplifier (also known as a large signal amplifier), is to deliver power to the load, and as we know from above, is the product of the voltage and current applied to the load with the output signal power being greater than the input signal power. In other words, a power amplifier amplifies the power of the input signal which is why these types of amplifier circuits are used in audio amplifier output stages to drive loudspeakers.
The power amplifier works on the basic principle of converting the DC power drawn from the power supply into an AC voltage signal delivered to the load. Although the amplification is high the efficiency of the conversion from the DC power supply input to the AC voltage signal output is usually poor.
The preceding stages in such a chain are low power audio amplifiers which perform tasks like pre-amplification (this is particularly associated with record turntable signals), equalization, tone controls, mixing/effects, or audio sources like record players, CD players, and cassette players. Most audio power amplifiers require these low-level inputs to adhere to line levels.
While the input signal to an audio power amplifier may measure only a few hundred microwatts, its output may be tens or hundreds of watts for a home system or thousands or tens of thousands of watts for a concert sound reinforcement system.
Not all amplifiers are the same and are therefore classified according to their circuit configurations and methods of operation.
There are many forms of electronic circuits classed as amplifiers, from Operational Amplifiers and Small Signal Amplifiers up to Large Signal and Power Amplifiers. The classification of an amplifier depends upon the size of the signal, large or small, its physical configuration and how it processes the input signal, which is the relationship between input signal and current flowing in the load.
1.2 OBJECTIVE OF THE PROJECT
The main objective of this work is to design and construct an audio power amplifier that will deliver appreciable 2000w power to the load, which compose of 2 VIP microphone, VCD player and 2 external speaker of 150w.
1.3 APPLICATION OF THE PROJECT
Important applications include public address systems, theatrical and concert sound reinforcement systems, and domestic systems such as a stereo or home-theatre system. Instrument amplifiers including guitar amplifiers and electric keyboard amplifiers also use audio power amplifiers. In some cases, the power amplifier for an instrument is integrated into a single amplifier “head” which contains a preamplifier, tone controls, and electronic effects. In other cases, musicians may create a setup with separate rack mount preamplifiers, equalizers, and a power amplifier in a separate chassis. It is used for DJ outdoors programme
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