This document describes the design and simulation of a single-phase inverter using MOSFETs. It discusses how inverters work to convert DC power to AC power and the components used in this single-phase inverter circuit. The inverter is designed to take a 12V DC input from a battery and provide a 1000VA, 220V AC output to power domestic loads. It uses MOSFETs for the inversion process due to their advantages over other transistors. The circuit design includes an oscillation stage to generate a 50Hz signal and a buffer stage to drive the MOSFET gates. The inverter successfully provides an AC output from the DC input to power electrical appliances.