29 Pages
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3,397 Words
The purpose this text is to present at a primary and intermediate level a comprehensive over view of the construction principles and indeed the operation of a power amplifier with 100w as the output power. The history and importance of electronic as a unique braches of science cannot be over emphasized electronic as its history might have it is divide into sections the first began with the invention of the vacuum tube the second occupy […]
38 Pages
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3,996 Words
INTRODUCTION Power amplifier is an electronic device, which is used to increase sound energy. In other words, the final stage which must driven a given load e.g mechanical indicator, a loudspeaker cathode roy tade, magnetic deflection coil, a transmitting accrual of a communication network. Power amplifier is also used in regulation power supplies, chopper amplifier, motor controller etc. In general the load will by its nature, demand […]
50 Pages
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6,801 Words
A wailing alarm is a loud electronics device that produces sound similar to police siren. Siren is used to get other road users or drivers on the road out of their way. This project is on wailing alarm sound that sound effects like the siren of an ambulance or police car which features low-pitched tones alternately. This project will be comprised of the oscillator circuits of two set. Using IC-555 timer IC are main both unit. The first […]
47 Pages
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5,666 Words
This project work is on the construction of an F.M transmitter this system consists of four discrete modules namely the audio frequency (AF) amplifier (class A) the modulator the master oscillator and the radio frequency (RF) amplifier (ClassC) these formed the conventional events for building FM transmitter here the signal (from the microphone) is fed into the (AF) for amplification then to the modulator which combines the modulating […]
48 Pages
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5,481 Words
This thesis gives the account for the design and construction of a 45W Audio Power Amplifier with the objective of producing a reliable and cheaper amplifier that can be used in a household or stage. The Audio Power Amplifier was constructed with electrical/electronics components such as resistors, capacitors, transformer, transistors and so on. Many tools/instruments like soldering iron, multimeter and so on were used. The 45W Audio P […]
66 Pages
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8,369 Words
This work is on power booster device, that is, using ironing and heating element on a 650w generator. This booster can be plugged to small generator like tiger generator and bigger generators. It does not affect the sound of the generator neither will it destroy your generator set in any ways. It will help you to plug your iron and other heating elements in the output of your generating plant without damage to your generator coil e.g: […]
Conventional methods of audio amplification use high power circuits to drive a loudspeaker for areas like an auditorium or any other hall. However for applications involving use of small loudspeakers for low range requirements, we can meet the requirements by constructing a low power amplifier with a low output current such as 200 mA. In this work, we are discussing the principle, design and operation of a low power audio amplifier us […]