Design And Construction Of An Shock Warning Circuit
A shock warning circuit is an electronic device designed to alert individuals to the presence of potentially hazardous electrical voltage levels, serving as a safety measure in various applications. Typically composed of sensors, amplifiers, and indicator components, this circuit detects voltage above a predetermined threshold, triggering an alarm or visual warning to notify users of the danger. The construction involves integrating components such as voltage sensors, comparators, and LED indicators, with emphasis on reliability and sensitivity to ensure timely warnings. The design must account for factors like voltage range, response time, and power consumption, optimizing the circuit for specific environments and applications. By implementing proper insulation and safety measures, the shock warning circuit enhances electrical safety by providing timely alerts to prevent accidental contact with hazardous voltages.
ABSTRACT
The circuit continuously monitors the leakage from an electronics gadget by sensing the potential in its body. When there is leakage from the body, the potential exists across the neutral end and the body of the gadget, which charges capacitor C1 through diode D1 and resistor R1. When the voltage across capacitor C1 exceeds the break-down potential of DIAC1 (DB3), it starts conducting and the capacitor discharges through the buzzer as well as LED1 quickly. This discharge energy makes LED1 flash and piezobuzzer sound momentarily. As long as there is leakage from the body of the gadget, there is intermittent warning from the buzzer as well as from the LED.
TABLE OF CONTENTS
COVER PAGE
TITLE PAGE
APPROVAL PAGE
DEDICATION
ACKNOWELDGEMENT
ABSTRACT
CHAPTER ONE
1.0 INTRODUCTION
1.1 BACKGROUND OF THE PROJECT
- PURPOSE OF THE PROJECT
- AIM OF THE PROJECT
- OBJECTIVE OF THE PROJECT
- PURPOSE OF THE PROJECT
- LIMITATION OF THE PROJECT
- ADVANTAGES OF THE PROJECT
- PROBLEM OF THE PROJECT
- APPLICATION OF THE PROJECT
- RESEARCH QUESTION
- PROJECT ORGANISATION
CHAPTER TWO
LITERATURE REVIEW
- OVERVIEW OF THE STUDY
- REVIEW OF THE RELATED STUDY
CHAPTER THREE
3.0 CONSTRUCTION METHODOLOGY
3.1 BASIC OF THE SYSTEM
3.2 BLOCK DIAGRAM OF THE SYSTEM
3.3 SYSTEM OPERATION
3.4 CIRCUIT DIAGRAM
3.5 CIRCUIT DESCRIPTION
3.6 DESCRIPTION OF COMPONENTS USED
3.7 POWER SUPPLY UNIT
CHAPTER FOUR
4.0 TESTING AND RESULTS
- CONSTRUCTION PROCEDURE AND TESTING
- INSTALLATION OF THE COMPLET DESIGN
- ASSEMBLING OF SECTIONS
- TESTING OF SYSTEM OPERATION
- COST ANALYSIS
CHAPTER FIVE
- CONCLUSION
- RECOMMENDATION
- REFERENCES
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