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Nowadays, the use of transformer-less single-phase inverters is widespread for domestic photovoltaic applications due to the high efficiency that can be obtained. Here, three similar topologies of transformer-less inverters are compared to highlight their differences. They are the full-bridge, the H5, and H6 inverters. The analysis considers the efficiency, the leakage current, and the quality of the output current when different modulation techniques are adopted. The experimental tests aredoi:10.1049/iet-pel.2018.5090 fatcat:oq43vzf6trdxhp22yy4z63ugwm