A PURE SINE WAVE INVERTER FOR HOUSE BACKUP

ABSTRACT
The reliability of power company electricity service varies greatly due to many factors including
the design of the power grid, protective features, power system maintenance practices and severe
weather. This project aims to design a microcontroller based pure sine wave inverter using Pulse
Width Modulation (PWM) switching scheme to supply AC utilities with emergency power. It
involves generating of unipolar modulating signals from a Programmable Interface Computer
(PIC16F887A) and using them to modulate a 12V dc MOSFET based full H-Bridge. The focus
is on designing an inexpensive, versatile and efficient pure sine wave inverter that gives a 240V,
600W pure sine wave output.
 

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PURE SINE WAVE INVERTER FOR HOUSE BACKUP.pdf1.05 MB