DESIGN AND CONSTRUCTION OF AUDIO POWER INDICATOR
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- Pages: 68
- Price: N 3,000
- Chapters: 1-5
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An audio amplifying device such as a power amplifier cannot deliver an output wave wider than its powersupply voltage. When you reach the limit, increasing gain may sound louder but sound will be distorted and can even damage speakers. This audio power levelindicator circuit will announce with an LED that you have reached a particular level of an audio power.
However, the main aim of this work is to display three different level of an audio device via LEDs.
CHAPTER ONE
1.1 INTRODUCTION
Audio power is the electrical power transferred from an audio amplifier to a loudspeaker, measured in watts. The electrical power delivered to the loudspeaker, together with its efficiency, determines the sound power generated.
Amplifiers are limited in the electrical energy they can output, while loudspeakers are limited in the electrical energy they can convert to sound energy without being damaged or distorting the audio signal. These limits, or power ratings, are important to consumers finding compatible products and comparing competitors.
For the course of this work which is on three level audio power indicator. The circuit has been designed for loudspeakers to provide a monitoring scheme of audio power being supplied which will determine that any setup will not be required without the presence of a power supply.
The illumination of three LEDs will serves as the means of indicating the instantaneous power output being delivered to a loudspeaker. The circuit may be connected to any loudspeaker output of an audio amplifier. The illumination of the LEDs takes place one after another due to the little by little increase in the values of the voltage. This will provide a visual notion of luminous bars that forms a column while showing the increase and decrease in height in accordance to the output level of the signal.
1.2 AIM OF THE PROJECT
The aim of this work is to design a device that is attached to an audio device which monitors the level of the output power.
1.3 PURPOSE OF THE PROJECT
The purpose of this work is to display the audio level of an audio device via an LEDs.
1.4 OBJECTIVE OF THE PROJECT
At the end of this work, student involved will be able to design this device which display three different audio power level using green, blue and orange colour LEDs.
1.5 SIGNIFICANCE OF THE PROJECT
This device is used to monitor a loudspeaker, alarm, or audio source for presence of an audio waveform. It can also be directly connected across loudspeaker terminals used as a peak indicator.
1.6 LIMITATION/PROBLEM OF THE PROJECT
The circuit has one drawback in that it requires a separate power supply. This is compensated, however, by the fact that it is pretty sensitive (0.2W min.) and does not degrade the sound quality in any way, since it does not present an additional load to the amplifier.
1.7 APPLICATIONOF THE PROJECT
This device is used in audio devices such as:
- Audio and power amplifier
- Radio receiver
- DJ studios,
- cassette player ,
- tape recorders
- multimedia active speakers, etc.
1.7 PROJECT WORK ORGANISATION
The various stages involved in the development of this project have been properly put into five chapters to enhance comprehensive and concise reading. In this project thesis, the project is organized sequentially as follows:
Chapter one of this work is on the introduction to this study. In this chapter, the background of a three level audio power indicator of a three level audio power indicator, significance of a three level audio power indicator, aim of a three level audio power indicator, objective of a three level audio power indicator, limitation and problem of a three level audio power indicator, application of a three level audio power indicator was discussed.
Chapter two is on literature review of the study. In this chapter, all the literature pertaining to a three level audio power indicator was reviewed.
Chapter three is on design methodology. In this chapter all the method involved during the design and construction were discussed.
Chapter four is on testing analysis. All testing that result accurate functionality was analyzed.
Chapter five is on conclusion, recommendation and references.
CHAPTER TWO: The complete chapter two of “design and construction of a three level audio power indicator” is available. Order full work to download. Chapter two of “design and construction of a three level audio power indicator”consists of the literature review. In this chapter all the related work on “design and construction of a three level audio power indicator” was reviewed.
CHAPTER THREE: The complete chapter three of “design and construction of a three level audio power indicator” is available. Order full work to download. Chapter three of “design and construction of a three level audio power indicator” consists of the methodology. In this chapter all the method used in carrying out this work was discussed.
CHAPTER FOUR: The complete chapter four of “design and construction of a three level audio power indicator” is available. Order full work to download. Chapter four of “design and construction of a three level audio power indicator”consists of all the test conducted during the work and the result gotten after the whole work
CHAPTER FIVE: The complete chapter five of design and construction of “design and construction of a three level audio power indicator” is available. Order full work to download. Chapter five of “design and construction of a three level audio power indicator”consist of conclusion, recommendation and references.
