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Structure for multi-input multi-output dc–dc boost converter

Structure for multi-input multi-output dc–dc boost converter

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In this study, a new structure for multi-input multi-output (MIMO) dc–dc boost converter is proposed. The number of inputs and outputs of the converter are arbitrary and independent from each other. The proposed topology has the advantages of both dc–dc boost and switched-capacitor converters. This converter is proper to use in applications like photovoltaic or fuel cell systems. The main advantages of the proposed structure are possibility of using energy supplies with different voltage-current characteristics, continuous input current, high voltage gain without high duty cycle, and possibility of performing at high switching frequencies. First, the different operating modes of the proposed converter are explained. Then, the effect of equivalent series resistance (ESR) of the inductor and voltage drop of diodes and switches on the voltage gain is investigated. Finally, the correctness operation of the proposed converter is reconfirmed by the simulation and experimental results.

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