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Power Stage Design Details of A 3kva Pure Sine Wave Inverter

Gabriel Ebiowei Moses

Abstract

The persistent power supply challenges in developing countries, including frequent outages and heavy dependence on generators, necessitate the development of alternative energy systems that are efficient, sustainable, and affordable. This paper presents the design of a 3kVA pure sine wave inverter focusing on the power stage, which is responsible for converting low- voltage DC from batteries into clean AC power suitable for household and business applications. The design adopts a full-bridge inverter topology utilizing high-efficiency MOSFET switches, a step-up transformer, and an LC low-pass filter to produce a 230V, 50Hz pure sine wave output. All the design calculations, component selection, and integration strategies is comprehensively developed to form a foundation for practical implementation. This paper presents a detailed guide, particularly suited for integration with renewable energy sources in this context.

Keywords

InverterLow-pass FilterStep-up transformerVoltage regulatorMOSFET

References

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