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THE DESIGN AND IMPLEMENTATION OF ELECTRONICS SEQUENTIAL SIGN PATTERN DISPLAY

THE DESIGN AND IMPLEMENTATION OF ELECTRONICS SEQUENTIAL SIGN PATTERN DISPLAY
ABSTRACT
This design implementation of this electronic sequential sign post display employs the use of some specialized components. This section of the project introduces the reader to the different section of the project and the components that makes them up.
Emphasis are laid on describing the behaviour and operational system of the components as related to the project modeling, analysis, design and implementation of an ELECTRONIC SIGN POST, which is made up of a power supply, a shift register, a counter, multivibrator (555CMOSI.C) transistor, relay, resistors of different ohmic values capacitors, sensitive mic (for the switching system) and 220V AC lamp.
LIST OF FIGURES
Fig. 3.1: Block Diagram of a Dynamic Sign Display
Fig. 3.2: Arrangement of the Pattern Display
Fig. 4.1: Transformer Arrangement
Fig. 4.2: Bridge Rectifier
Fig. 4.3: Voltage and Current Waveforms
Fig. 4.4: Full Diagrams of Power Supply
Fig. 5.1: Four Bit Series in Parallel out Register Logic Circuit Arrangement
Fig. 5.2: Clear and Shift Sequence
Fig. 5.3: Circuit Diagram  for SR Ftip-Flop
Fig. 5.4: Timing Diagram for SR Ftip-Flop Unclocked
Fig. 4.4.B: Clocke Circuit
Fig. 6.1: Transistor Switch/Relay Drive
Fig. 6.2: Wave form of a Monostable, Fti-Flop
Fig. 7.1: Astable Multivibrator
Fig. 7.2: Internal Block Diagram of CMOS555 Timer
Fig. 7.3: 555CMOS Connection as a Multivibrator
Fig. 7.4: 555CMOS Connection as a Timer
Fig. 7.5: 555CMOS Connection as a Monostable Vibrator
Fig. 8.1: Asynchroneous Decade Counter using Reset
Fig. 8.2: Asynchroneous Decade Using Feedback
Fig. 8.3: Timing Wave form
Fig. 8.4: Pin configuration of Latch Counter
Fig. 8.5: Circuit Diagrams of a Divided Counter
Fig. 8.6: Complete Circuit Diagram of Electronics Sign Post
Fig. 8.7: Complete Picture of Electronic Sign Post
TABLE OF CONTENTS
Title Page
Declaration
Approval Page
Dedication
Acknowledgements
List of Table
List of Figure
Table of Contents
Abstract
Description/Functions of Components Used with
List of Figures
CHAPTER ONE 
CHAPTER TWO
Literature review
CHAPTER THREE
Methodology
CHAPTER FOUR 
Power supply
Filtration
CHAPTER FIVE 
Design of sequential Counter
CHAPTER SIX
Design of the transistor/Relay Drive
CHAPTER SEVEN
Design of system timing circuit
Design of an interated timing circuit
Astable multivbrator
Asignchronous counter
Synchronous counter
CHAPTER EIGHT 
Construction and packaging
Problem encountered and solutions
References 

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