Switching strategy of neutral point type converter

In this paper, the pulse with modulation as switching strategy for neutral point type buck-boost converter is introduced. The proposed control strategy is implemented and applied to electronic ballast by using neutral point type buck boost converter. The circuit is composed from two ideal switches and Metal Oxide Semiconductor Field Effect Transistor which in its common source configurations used as switching technique. Switching model is developed in Matlab/Simulink on order to control neutral point type buck boost converter. This has resulted to reduction in harmonics current. In realizing its effectiveness and performance, the proposed switching technique has been applied to electronics ballast and lamp. Results obtained from the study indicate that the proposed switching technique is feasible for further applications.