ABSTRACT
The AVR is an automatic voltage regulator and it is a device which
is used to regulate or stabilize electrical power supply for electrical or
electronic appliances.
Inthisprojecttherefore,weareinterestedintheconstructionof
this allimportantdevice.Furthermore we shalldiscuses the
techniques,processes,switching stages and then the working
principleoftheautomaticvoltageregulator
Chapteroneofthisprojectdwellsontheintroductionofthe
projecttopic.Italsotalksabouttheobjectivesoftheproject,bringing
tomindwhatweintendtoachieveattheend
Chaptertwooftheprojectreviewstheresearchworksthathas
beencarriedoutbysomeotherpeopleinthisstudyarea.Italso
discussesonsomeofthecomponentsusedinthisproject
Chapter three gives a detailed account of the basic
constructionandtheoperationoftheAVR.Italsohighlightsonsome
othercomponentsused,discussingtheirworkingprinciplesusing
boththecircuitandblockdiagrams
Chapter four of this project,draws the conclusion an
consequently gives the recommendation on how to betterthe
operationoftheAVR.Italsoincludesthereferencesandarticles
consultedinthecourseofthisproject.
TABLEOFCONTENTS
Certificationpage - - - - - - - i
Abstract - - - - - - - - - ii
Acknowledgement - - - - - - - iii
Dedication- - - - - - - - - iv
Tableofcontent- - - - - - - v-vi
CHAPTERONE
1.1Introductiontoautomaticvoltageregulator- - 1-3
1.2Objectivesoftheproject- - - - - 3-4
CHAPTERTWO
2.0Literaturereview - - - - - - 5-7
2.1Someofthecomponentsused - - - 7-8
2.2Resistors - - - - - - - - 8-9
2.3Capacitors - - - - - - - - 9-10
2.4Transistors - - - - - - - - 10-11
2.5Relays- - - - - - - - 12-14
CHAPTERTHREE
3.0BasicconstructionandoperationoftheAVR - 15
3.1ComponentsofAVR - - - - - 16
3.2Transformers- - - - - - - 16-19
CircuitdiagramoftheAVR - - - - - 20
3.3Theworkingprinciple - - - - - 21-22
3.4ThemainfunctionoftheAVR - - - - 23-24
3.5Theneedforvoltageregulation/stabilization - 25-26
3.6Solderingandsolderingtechnique.............27-28
3.7Testingandtrouble-shooting................28-29
3.8Projectcasing...........................29-30
CHAPTERFOUR
4.0Conclusionandrecommendation - - - 31
4.1Conclusion - - - - - - - 31-33
4.2Recommendation - - - - - - 34
Reference - - - - - - - - - 35
