Double-Input/Single-Output Zeta Converter

This paper presents a double-input/single-output DC/DC Converter (DISOC) in continuous conduction mode (CCM) by applying a non-interleaved switching pattern on the transistors of the circuit. The converter can be utilized in either step-up or step-down conditions. The proposed converter is created by combining H-bridge cells and zeta converter, based on DISO buck-boost topologies. In comparison to the DISO buck-boost converters, the proposed converter has a positive output voltage, which is required in many applications. In addition, connecting the input voltage sources in series is allowed in the proposed converter, as opposed to integrated DISO buck-boost converters. The output voltage ripple of the proposed converter is considerably less than that of both DISO buck-boost converters and integrated DISO buck-boost converters, which is a great advantage. Compared to cuk and SEPIC converters, the proposed combination of H-bridge cells and zeta converter requires less electric components. Theoretical calculations and steady-state analyses of the topology are presented for continuous conduction mode and its operation has been simulated using MATLAB-Simulink environment to evaluate the theoretical calculations.