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This project is aimed at designing and constructing an automatic voltage regulator that will give a constant output range from 220V to 250V for domestic use. It also has an inbuilt digital voltmeter which displays the magnitude of the input voltage. The AVR is divide into four mains parts; the supply, the autotransformer, the switching circuit and the display. The supply section has to do with the rectification and filtration of 220/230 volts from the supply mains into a lower and suitable voltage to drive the semiconductor devices. The transformer is a device having two coils of different t voltage levels. The switching circuits include the comparator, transistor and relay which determines the output of the AVR.
Info autore
Daniel James était enseignant et responsable de l'orientation et du conseil à la Government Day Secondary School Kubo, Shani LGA Borno State. Il a enseigné la physique et l'informatique aux élèves des classes 1, 2 et 3. Grâce à son expérience d'enseignant, il a compris la nécessité pour tous les élèves du secondaire de disposer d'un manuel d'informatique comme celui-ci.
