Vahid Abbasi

This study proposes a common grounded Z-source DC–DC converter. In comparison with a conventional Z-source converter, it converts voltage with higher voltage gain and lower voltage stress on the switch and diodes that means an improvement in efficiency. In addition, increasing the duty cycle reduces its output voltage ripple percentage that improves its operation quality. The converter is analysed and compared with other converters. Its main equations are obtained, which show the converter advantages as lower voltage stress, smaller inductors and higher voltage gain in comparison with the reviewed converters. A prototype for the proposed converter is prepared based on analysis and theoretical parts. Experiments are done along with the analysis. Experimental results and theoretical equations are used to show the converter advantages.