Power-Supply Failure Alarm ACKNOWLEDGEMENT We tak e thi s opp ortuni ty to exp ress our dee p sense of gra titude and respect towards our Co-Or dinat or Proj ects, Mr. Kausar Ali , Lecturer, Sub Co-Ordinator Projects , Mr. Mitesh Jindal, Lecturer, Depar tment of Elect roni cs & Communi catio n Engi neeri ng, Viv ekanan da Insti tute of Techn olog y. We are very mu ch in debt ed to th em fo r th e generosity, expertise and guidance; we have received from them while working on this project and throughout our studies. Without their support and timely guidance, the completion of our project would have seemed a far-fetched dream. In this respect we find ourselves lucky to have them as our Project Co-Ordinators. Th ey have guided us no t only wi th the subject matter, but also taught us the proper style and techniques ofworking. We are grateful to our respected Head of Department, Mr. San jivKumaran d al l th e st af f me mb ers of Dep art ment of Ele ctr oni cs & Communicati on Engineering for their constant encouragement . Vineet Sharma (08EVJEC064) Virendra Ruhela (08EVJEC300) Sunil Bhaira (08EVJEC056) i MINOR PROJECT REPORT IV YEAR NOVEMBER 2011