Double-Input/Double-Output Buck-Zeta Converter

In this paper, a detailed analysis is presented for the continuous conduction mode (CCM) operation of a double-input/double-output DC/DC converter (DIDOC), which consists of two H-bridge cells, a buck converter, and a zeta converter. The zeta converter is utilized by applying a non-interleaved switching pattern on the transistors of the circuit. Hence, a buck converter can be implemented by adopting a low-pass filter to the other H-bridge cell. The whole converter can be operated either in step-up or step-down conditions. The proposed converter is created based on DISO buck-boost topologies. Compared to the DISO buck-boost and buck converters, the converter provides positive output voltages, which is demanded in many applications. Reduction in the number of components is another benefit of utilizing this converter compared to cuk and SEPIC converters. Design and analyses of the circuit has been verified using MATLAB-Simulink software.