A new control scheme for current distribution in parallel connected DC–DC converters is presented. It uses a sliding-mode controller to achieve both output current equalisation and output voltage regulation. The controller improves the dynamic performance of a parallel buck converter; the output voltage is robust against load disturbances and the output currents are very well equalised. The analysis and design of the sliding-mode controller is developed. Simulation and experimental results show good dynamic performance of the proposed control scheme.
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Donoso-Garcia et al. (1998) studied this question.
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