We know that, inverters are nowadays in huge demand and there various types of inverters are already available. The major drawbacks of inverter are the harmonics and the high output voltage that is caused in output; there are many ways to eliminate the harmonics and the output voltage. In this paper we are studying the in-depth analysis of single phase H-Bridge inverter and their harmonic elimination, finally we will get a pure sinusoidal waveform and the proper output voltage. The result of the analysis is shown as a graph.