4.5 Article

Topology and Formation of Current Source Step Down Resonant Switched Inductor Converters

期刊

ENERGIES
卷 15, 期 5, 页码 -

出版社

MDPI
DOI: 10.3390/en15051697

关键词

current converter; switched-inductor converter; switched-capacitor converter; zero-voltage switching; soft-switching; duality; current source; photovoltaic

资金

  1. University Grants Committee General Research Grant, Hong Kong [PolyU 152218/19E]

向作者/读者索取更多资源

This paper presents a current converter that utilizes inductors for energy storage, with special current conversion capability and soft-switching. It has potential for a wide range of applications, including current bucking.
This paper presents a current converter that uses an inductor based approach for interim energy storage. A family of the circuits for step down conversion is examined for both non-inverting and inverting operations. The paper has disclosed the method of the generation, so that any order of 1/n conversion ratio can be made. One of the features is to use two transistors only in the common half-bridge style. The main contribution is its special current conversion capability and soft-switching, because it eliminates switching loss and the spike in the devices using a resonant capacitor with the switched-inductor. The performance has been proved to work well for current bucking. This is a new concept for the power converter and is an advanced development of the conventional switched-inductor converter, switched-capacitor, and resonant converter; it is a duality of the switched-capacitor converter. The paper provides a theoretical approach for the current source topology and its formation. It prepares for vast applications in the current source photovoltaic system and current mode system. Experiment verification and loss analysis have proven the preferable characteristics. Benchmarking comparison with similar converters has been made and advanced features have been described. The proposed converter presents current mode research for increasing application in the coming decade.

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