Construction of 500w 12v inverter charger
Table Of Contents
- Cover pageTitle page IApproval IIDedication IIIAcknowledgement IVAbstract VTable of content VIList of figures VIICHAPTER ONE: INTRODUCTION1.0 Background of the stud……………………….
- 21.1Statement of problem…………………………..
- 1.2Aims and objectives……………………………
- 41.3Scope of work …………………………………
- 41.4Importance of work……………………………..
- 41.5Organization of study …………………………6CHAPTER TWO: LITERATURE REVIEW2.0 Brief History of Inverters………………………
- 82.1Inverter application and uses ………………….
- 82.2Types of inverter ………………………………9viii2.3 Inverter versus other related appliances………………..102.
- 3.1Generator and inverter………………………………….102.
- 3.2Inverter and ups…………………………………………
- 122.4Mode of operation of an inverter……………………….132.
- 4.1When the AC mains supply is available………………..142.
- 4.2When the AC mains supply is not available ……………
- 142.5Component Analysis ……………………………………162.
- 5.1Ideal diodes ………………………………………………162.
- 5.2Resistors…………………………………………………….182.
- 5.3Capacitors………………………………………………..192.
- 5.4Transistors………………………………………………..202.
- 5.5Voltage regulator …………………………………………..222.
- 5.6Transformer …………………………………………….232.
- 5.7Relay…………………………………………………….242.5.
- 7.1Battery………………………………………………..26CHAPTER THREE: SYSTEM OPERATION3.0 Block diagram and operation…………………………….
- 273.1When the AC mains supply is available…………………….
- 273.2When the AC mains supply is unavailable………………….
- 283.3Complete circuit diagram ………………………………..333.
- 3.1System operation using circuit diagram……………..34CHAPTER FOUR: DESIGN ANALYSIS AND IMPLEMENTATION4.0 Design specifications and requirements ……………
- 354.1Design of the power supply unit ……………………
- 354.2Design of 50 Hz oscillator…………………………..
- 374.3Days (hours) of autonomy …………………………
- 394.4Depth of discharge……………………………………40CHAPTER FIVE: TESTING AND RESULT5.0 Drive or amplifier test………………………………..
- 435.1Oscillator circuit test…………………………………
- 435.3Transformer test………………………………………
- 445.4Entire system testing………………………………….
- 445.4Battery charging evaluation ………………………….
- 445.5System evaluation ……………………………………
- 445.6Packaging …………………………………………….
- 455.7Cost of project ……………………………………….
- 465.8Maintenance cost …………………………………….
- 495.9Running cost …………………………………………49CHAPTER SIX: CONCLUSION6.0 Conclusion ……………………………………………
- 506.1Recommendation …………………………………….
- 506.2Problem encountered …………………………………
- 516.3Limitation/ Constraints………………………………..
- 516.4Suggestion for further improvement ………………….51ReferenceLIST OF FIGURESFig
- 2.0Ideal diode structureFig
- 2.1Symbol of zener diodeFig
- 2.2Symbol of light emitting diodeFig
- 2.3symbol of electrolytic capacitorFig
- 2.4Paper capacitorFig
- 2.5Variable capacitorFig
- 2.6Symbol of enhancement mosfet Fig
- 2.7Symbol of npn transistorFig
- 2.8Symbol of voltage regulator (7808 Ic)Fig
- 2.9Core type transformerFig
- 2.10Symbol of a transformerFig
- 3.1Block diagram of basic inverterFig
- 3.2Complete circuit diagram of 500 watts/inverter
Thesis Abstract
An inverter is a system which is capable of converting DC voltage from a battery into AC voltage. The Inverter constructed converts 12V dc to 220V Ac. It consists of an oscillator section using 8V dc to produce 50Hz sine wave. The sine wave is amplified by Tip 41 and used to drive IRPF250 MOSFET power transistors capable of delivering 500W nominally. The mosfet switches the 12V dc across the high current transformer which then produces the Ac at its output. The output of the transformer is a square wave but has been converted to a near sine wave using some RC circuit.
There is also a provision in the system to charge the battery when PHCN is on as the inverter is expected to function only PHCN is off.
Thesis Overview
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