FPGA Based Implementation of the Push-Pull Configuration of a Single Phase Multilevel Inverter with a Novel PWM Technique

This paper presents a new topology for a multilevel inverter, which consists of a single dc voltage source with a series of capacitors, power switches and a mid-point transformer to demonstrate the operation of a five level inverter. A SPARTAN 3E field programmable gate array based controller is used for the generation of the switching scheme. The comparative study of the proposed inverter with the classical one is also presented. The conduction and switching losses of the proposed topology are also calculated for the validation of the proposed topology. The performance of the proposed inverter is obtained using MATLAB simulation with R and R–L loads. The simulation results are validated by the experimental prototype results.