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Interleaved dc/dc converter with coupled inductors is preferred in high power applications for their better steady- state and dynamic-state performances. But most of the coupled inductors proposed so far for multi-phase interleaved converters are in the same core, which may suffer several issues, such as asymmetrical parameters, high manufacturing cost and large dc flux. In this paper, the merits...
This study examines the mechanism and effectiveness of current sharing in a multiphase, series capacitor buck converter. The automatic current sharing mechanism is inherent to the series capacitor buck topology and uniquely utilizes its series capacitor. Unlike conventional multiphase buck converters, current sharing is achieved without any current sensing circuits or added external control loops...
An improved steady-state model is developed in this paper for the dual-active-bridge (DAB) dc-dc converter. It is first shown how the well-known ideal model fails to predict DAB dc characteristics, and that differences in model predictions compared to experimental results can be very large, especially in cases where the DAB series tank inductance is relatively small. A new analysis method is then...
State-plane analysis techniques are employed to study the voltage step-up energy-storage dc-to-dc converter. Within this framework, an example converter operating under the influence of a constant on-time and a constant frequency controller is examined. Qualitative insight gained through this approach is used to develop a conceptual free-running control law for the voltage step-up converter which...
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