An Improved Zeta-Based DC-DC Converter

This paper proposes a non-isolated high-gain DC-DC converter capable of delivering a 10x voltage gain with a 50 percent duty cycle. The topology represents an enhanced version of the Zeta converter and aims to address issues such as discontinuous input current and low voltage gain of the conventional Zeta converters, making it suitable for renewable applications. Moreover, it offers a common ground between input source and load. Semiconductor stress is also kept below unity in terms of normalized voltage/current. The proposed converter is analyzed in both ideal and non-ideal modes, with a particular focus on sensitivity analysis regarding voltage gain and efficiency in the latter. Simulation results are provided to validate the theoretical relations expressed.