A new buck-boost-operation-based sinusoidal inverter circuit

This paper proposes a novel sinusoidal inverter circuit. The performance of this inverter circuit is based on buck-boost operation, as it is well known in a DC chopper circuit. The proposed inverter has a distinguished feature of step-up and step-down output voltage. The sinusoidal output voltage of the inverter is obtained by using a hysteresis-comparator scheme. The behavior of the inverter circuit is described in detail based on the switching conditions and operation modes. The computer simulation is carried out in order to confirm the performance and advantage of the proposed sinusoidal inverter.