Design and Construction of a Pure Sine Wave Inverter

Authors

  • T. V. Omotosho
  • D. T. Abiodun Department of Physics, Covenant University Ota, Ogun state
  • S. A. Akinwumi Department of Physics, Covenant University Ota, Ogun state
  • C. Ozonva Department of Physics, Covenant University Ota, Ogun state
  • G. Adeyinka Department of Physics, Covenant University Ota, Ogun state
  • L. N. Obafemi Department of Physics, Covenant University Ota, Ogun state

DOI:

https://doi.org/10.26713/jims.v9i2.741

Keywords:

Inverter, Sine wave, Oscillator, Transformer

Abstract

This research is a design and implementation of a sine wave inverter circuit developed to run AC appliances at a low cost which high efficiency. The design consists of two stages i.e. the DC-DC step up stage and a DC-AC Inverter stage. The DC-DC step up converter is based on a push-pull design to step 24VDC to 300VDC. Pulse width modulation was used i.e. the SG3525 pulse width Modulator. The DC-AC inverter stage comprised of four power mosfets in an H-bridge configuration, driven by a 40 kHz square wave encoded/modulated by a 50Hz sine wave that was derived from a TL084 quad op amp sine wave oscillator. An output voltage range of about 240-260VAC from 300VDC input was obtained. A low pass filter was used to filter out the high frequencies and thus isolate the harmonics so a 50 Hz fundamental frequency was retained.

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References

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CITATION

How to Cite

Omotosho, T. V., Abiodun, D. T., Akinwumi, S. A., Ozonva, C., Adeyinka, G., & Obafemi, L. N. (2017). Design and Construction of a Pure Sine Wave Inverter. Journal of Informatics and Mathematical Sciences, 9(2), 397–404. https://doi.org/10.26713/jims.v9i2.741

Issue

Vol. 9 No. 2 (2017)

Section

Research Articles

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