A Novel Inverter Based on Buck Converter

In this paper,a novel inverter based on buck converter is presented,which achieves a sine wave output voltage through DC-DC conversion.The author analyzes the circuit operation principle,studies its control strategy,immunity,load characteristics and dynamical response.The simulative and experimental results show that with the PD control based on feedback of voltage error the output voltage of the inverter can remain dynamically unchanged when there are disturbances in input DC voltage or load current,that the inverter has a good load characteristic.Compared with the traditional inverter,this new one has some advantages such as low switching losses,lower cost.