F. H. Makarim, B. Antares, A. Rizqiawan, P. Dahono
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Optimization of Multiphase Cascaded DC-DC Boost Converters
This paper presents an optimization of multiphase cascaded DC-DC boost converters to maximize the efficiency. Multiphase cascaded DC-DC boost converters are converters that have a very high gain level and a zero-input current ripple. The paper starts with derivation of loss equation in the converter and the result is used for optimization process. It is found that the optimum phase number is three for the first stage and one for the second stage converter. The first stage converter is operated at fixed duty cycle of 0.66. The output voltage control is delegated to the second stage. Experimental results are included in this paper.
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