Description
NE555 Timer IC is very popular and one of the commonly used component in electronics circuit. NE555 Timer IC is also called Ideal IC since it offers multiple features like multipurpose functionality, low power consumption, small size and durable.
When we work on a particular project and it doesn’t work the way we wanted, before circuit we doubt on the IC used, if it is working or not. More or less, blaming IC is reasonable since IC is the combination of many more components or IC itself is a combination of circuit. Here is the simple but effective 555 timer IC tester circuit which checks IC NE555 whether it has fault or not.
TABLE OF CONTENTS
TITLE PAGE
APPROVAL PAGE
DEDICATION
ACKNOWLEDGEMENT
ABSTRACT
TABLE OF CONTENT
CHAPTER ONE
1.0 INTRODUCTION
1.1 BACKGROUND OF THE PROJECT
1.2 AIM OF THE PROJECT
1.3 OBJECTIVE OF THE PROJECT
1.4 SIGNIFICANCE OF THE PROJECT
1.5 PURPOSE OF THE PROJECT
1.6 APPLICATION OF THE PROJECT
1.7 ADVANTAGES OF THE PROJECT
1.8 PROBLEM/LIMITATION OF THE PROJECT
1.9 PROJECT ORGANISATION
CHAPTER TWO
2.0 LITERATURE REVIEW
2.1 REVIEW OF RELATED STUDIES
2.2 REVIEW OF RELATED TERMS
2.3 OVERVIEW OF 555 TIMER IC
CHAPTER THREE
3.0 CONSTRUCTION METHODOLOGY
3.1 SYSTEM CIRCUIT DIAGRAM
3.2 SYSTEM OPERATION
3.3 CIRCUIT DESCRIPTION
3.4 SYSTEM CIRCUIT DIAGRAM
3.5 CIRCUIT OPERATION
3.6 IMPORTANCE AND FUNCTION OF THE MAJOR COMPONENTS USED IN THIS CIRCUIT
3.7 POWER SUPPLY UNIT
CHAPTER FOUR
RESULT ANALYSIS
4.0 CONSTRUCTION PROCEDURE AND TESTING
4.1 CASING AND PACKAGING
4.2 ASSEMBLING OF SECTIONS
4.3 TESTING
4.4.1 PRE-IMPLEMENTATION TESTING
4.4.2 POST-IMPLEMENTATION TESTING
4.5 RESULT
4.6 COST ANALYSIS
4.7 PROBLEM ENCOUNTERED
CHAPTER FIVE
5.1 CONCLUSION
5.2 RECOMMENDATION
5.3 REFERENCES
Working of 555 Timer IC Tester
In the circuit IC NE555 itself is used as astable multivibrator mode. Switch SW1is pushed for power supplies which charge the capacitor C1 through resistor R1and variable resistor R 2 which trigger IC and high output is obtained from pin no. 3 which glows LED D2 (LED D1 off). Similarly when capacitor is discharged the output become low and LED D1 glows (LED D2 off). The on and off of LED in sequence is in practice until power supply, this mean there is no fault in IC. But if the LED doesn’t follow the ‘on and off’ pattern at regular intervals, then there is fault in IC.
Check out other various electronics component tester circuit posted in bestengineeringprojects.com
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PARTS LIST OF 555 TIMER IC TESTER
| Resistors (all ¼-watt, ± 5% Carbon) |
| R1= 1 KΩ
R2 = 150 KΩ R3, R4 = 330 Ω |
| Capacitor |
| C1 = 10 µF/16 V (Electrolytic Capacitor) |
| Semiconductors |
| IC1* = NE555 (Timer IC 555 to be tested)
D1 and D2 = Green and Red LED Respectively |
| Miscellaneous |
| 8 pin IC Base
SW1 = Push to on switch |
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