A Novel Hybrid Buck Converter Based on Switched-inductor Structure

MING QIN, JIAO-LEI XIE

Abstract


In order to solve the problem of the traditional buck converter's ability to step-down the voltage, a special designed switched-inductor structure is introduced and a novel hybrid buck converter is proposed. The circuit topology, working principle and output characteristics of the hybrid DC-DC converter with input inductors (L1=L2 and L1≠L2) are analyzed in detail. Compared with the traditional converter, the minimal step-down ratio of the proposed converter is much lower than that of the traditional buck converter. On the basis of theoretical research, the feasibility and advancement of the hybrid buck converter with switched-inductor structure are verified by building a simulation model.

Keywords


Hybrid buck converter, Switched-inductor structure, Low step-down ratio.Text


DOI
10.12783/dteees/epme2018/24618

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