In the context of applying mathematical analysis, an electrical related inverter circuit has been selected and analyzed its circuit parameters. The tool of fast Fourier transform has been applied to the circuit and simulated in MATLAB software. The electrical parameters like voltage and current have been obtained and thereby the differential equations are derived from the basic methods of Kirchhoff’s current and voltage laws respectively. The role of mathematics has been discussed in this paper for understanding the circuit behavior and further investigating the circuit values.