(PDF) A PROJECT REPORT ON THE DESIGN, CONSTRUCTION AND WORKING
This report focuses on DC to AC power inverters, which aim to efficiently transform a DC power source to a high voltage AC source, similar to power that would be available at an
To design a pure sine wave inverter from the scratch, we require the following circuit stages: A basic 50 Hz or 60 Hz inverter circuit. An op amp comparator using IC 741 or by configuring IC 555. Two sets of triangle waveform, one slow (low frequency) and the other fast (high frequency).
A sine wave inverter is a device which converts battery power into a 220 V AC or a 120 V AC sine wave output. There are 3 basic types of inverters: square wave inverter, modified sine wave inverter and a pure sine wave inverter. The voltage waveform output from a square wave inverter is square wave.
To construct a 1.7 kVA pure sine wave inverter, using the pulse width modulation technique. To test the constructed inverter for validation by running the inverter on load for a given period of time and observing its performance. The key importance of this study is to use low DC source to give out a high output AC power.
CONCLUSIONS The basic goal of this project, which is designing and construction of a working DC-AC pure sinewave inverter that could efficiently provide 1700 W of power has been achieved. Different signals were generated to control MOSFET switches arranged in an H- bridge.
PDF version includes complete article with source references.
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