A synchronous single switch inverter

Reducing the switch count and increasing the levels of voltage will increase the power inverters´ quality and efficiency. Vector controls of inverters have been used to increase limited levels of output voltage; however, they create an increasingly complicated switching map that results in harmonics. This paper introduces the structure of a synchronized minimum switch-count inverter that is capable of generating infinite voltage levels. Four modes of operation were detected in creation of negative and positive polarity voltages. Transition modes provide polarity inversion capability. Compared to H-Bridge inverters, the efficiency of this power inverter can be increased by 7%. Simulation results demonstrate the successful operation of the inverter.