An FPGA Based Single Phase Multilevel Inverter

This work presents a new multilevel inverter topology using an H-bridge with bidirectional auxiliary switch, eight diodes and two capacitors to get five level ac output. It presents an FPGA based gate signal generator for multilevel inverter to control its output voltage. The XILINX FPGA based multilevel inverter is chosen for the hardware implementation of switching strategy mainly due to its high computation speed that can ensure the accuracy of the instants that gating signals are generated. Spartan 6 board is used to get hardware output and these results are validated with simulated results.