Boost DC-DC Converter Based Z-source Inverter with High Frequency Link

This paper proposes a new topology of DC-DC converters with high gain of boost. The suggested circuit consists of Z-source inverter, high frequency transformer and diode rectifier. In this topology the output voltage amplitude is not limited to DC voltage source and transformer turn ratio similar to traditional high frequency DC-DC converters and can be regulated with Z network shoot-through state control. Besides, it is more reliable against short circuit. By using high frequency modulation, the size of transformer is reduced and it is proper in isolation between high voltage and low voltage circuits. The performance of suggested inverter and switching algorithm are validated with simulation results using MATLAB/SIMULINK software.