Design And Construction Of A Halogen Lamp Saver For Bikes
The Design And Construction Of A Halogen Lamp Saver For Bikes Project Material
Overview
ABSTRACT
Halogen lamps are prone to burn-out owing to their low cold current. The rapid heating inside the lamp melts the thin filament and cuts the lamp life short. The circuit described here enhances the life of the halogen lamp by allowing soft turn-on of the lamp.
When switch S1 is pressed, capacitor C1 charges via resistors R1 and R2, causing MOSFET T1 to conduct. It acts like a normal switch as long as the load (bulb B1) does not draw too much current. Resistor R4 limits the current through the load and also monitors the current flowing through MOSFET T1. The voltage drop across resistor R4 increases as the current through MOSFET T1 increases.
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
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
If the voltage at R4 reaches 0.65V, transistor T2 conducts and MOSFET T1 stops conducting. As a result, the lamp stops glowing. Capacitor C1 will hold charge when S1 is switched off. The discharge path for that residual charge is through diode D1 and resistor R5. So the soft turn-on functions correctly any time the bulb is turned on.
Assemble the circuit on a general-purpose PCB and enclose in a small plastic box. Use a heat-sink for mounting the MOSFET in order to dissipate the heat. Current-limiting resistor R4 protects the battery in case the output is short-circuited or the lamp draws more current than specified. Connect the bulb through two external wires having high-current-rating gauge.
Chapter One
1.0 INTRODUCTION
This chapter introduces the Design And Construction Of A Halogen Lamp Saver For Bikes and its relevance, states the research problems, research questions, and objectives, provides a background of the study, and should also include the research hypothesis.
Chapter Two: Literature Review
In this chapter, Design And Construction Of A Halogen Lamp Saver For Bikes is critically examined through a review of relevant literature that helps explain the research problem and acknowledges the contribution of scholars who had previously contributed immensely to similar research. The chapter intends to deepen the understanding of the study and close the perceived gaps …
SIMILAR PROJECT TOPICS
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