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ABSTRACT
It has become inevitable that there would be communication and due to the inherent limitation of the human voice, the public address system came to being. A public address or “P.A SYSTEM” is an electronic amplification system with a mixer ,amplifier and loudspeakers, used to reinforce a given sound , e.g a person making a speech, pre-recorded music ,or message and distributing the sound throughout a venue . The voice signal is passed through a microphone , which converts the sound energy to electrical energy, the energy electrical signal being transmitted is been received and amplified by the amplifier circuit. The amplifier’s output is fed into the loudspeaker which converts the electrical energy back to the original form but amplified sound energy. This project is made up of the power supply unit, the pre-amplifier and power amplifier units, and the tone control unit. This system is capable of delivering 20W of electrical power into a 8 ohm load(loudspeaker).
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SIMILAR ELECTRICAL ENGINEERING FINAL YEAR PROJECT RESEARCH TOPICS
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1. IMPROVING THE CAPACITY OF A RENEWABLE POWER SYSTEM, USING SOLAR POWER PANEL (A CASE STUDY OF COMPUTER SCIENCE ND SOFTTWARE LAB)
» CHAPTER ONE INTRODUCTION 1.1 BACKGROUND TO THE STUDY The use of renewable energy increased greatly just after the first big oil crisis in the late sev...Continue Reading »Item Type & Format: Project Material - Ms Word | 52 pages |
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2. EXPERT SYSTEM FOR LOCAL AREA NETWORK TROUBLESHOOTING
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3. THE CONSTRUCTION OF AN AUDIO AMPLIFIER OF 200WATT/30VOLTS D.C SUPPLY
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4. THE POLITICAL CORRUPTION AND PSYCHOSOCIAL DISORDER, USING TANURE OJAIDE’S THE ACTIVIST AND OKEY NDIBE’S ARROW OF RAIN
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5. DESIGN AND CONSTRUCTION OF AN AC/SOLAR RECHARGEABLE LANTERN
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6. CONSTRUCTION OF A BATTERY CHANGER USING SILICON CONTROLLED REGULATOR (SCR)
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7. PROBLEMS AND PROSPECT OF ELECTRICITY DISTRACTION
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8. CONTRUCTION OF AN 500W TRANSISTOR AMPLIFIER
» ABSTRACTThe design of this 30 volt Audio Amplifier with volume, table and bass control which was done wit ht he combination of five (5) different circ...Continue Reading »Item Type & Format: Project Material - Ms Word | 52 pages |
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9. AUTOMATIC DOOR BELL USING PASSIVE INFRARED SENSOR
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10. DOMESTIC REMOTE CONTROL FOR FANS, LIGHTING POINTS AND SOCKETS
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