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Improved Dc To Dc Converter with Single Input and Multiple Output

Abstract

This project deals to improve a Single-Input multiple-output (SIMO) dc–dc converter with low switching losses. The proposed converter can boost the voltage of a low-voltage input power source to a controllable high-voltage dc bus and middle-voltage output terminals. The high-voltage dc bus can take as the main power for a high-voltage dc load or the front terminal of a dc–ac inverter. Moreover, middle-voltage output terminals can supply powers for individual middle-voltage dc loads or for charging auxiliary power sources like battery modules and it also deals with a coupled-inductor based dc–dc converter scheme which utilizes only one power switch with the properties of voltage clamping and soft switching, and the corresponding device specifications are going to be designed. As a result, the objectives of high-efficiency power conversion, high step up ratio, and various output voltages with different levels are to be obtained. Some experimental results via in KW-level prototype will be given to verify the accuracy of the proposed SIMO dc–dc converter in practical applications. The proposed DC-DC converter will be simulated by using MATLAB/SIMULINK.

K.Narasimha Swamy, P.Gopichand

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