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A Study on the Expandable Bobbin Type Multiple Integrated Coupled-Inductor Applied 4-Pralleled Switching Rectifier  

Yoo, Jeong Sang (Department of Electronic Engineering, Cheongju University)
Ahn, Tae Young (Department of Electronic Engineering, Cheongju University)
Publication Information
Journal of the Semiconductor & Display Technology / v.18, no.4, 2019 , pp. 18-24 More about this Journal
Abstract
In this paper, expandable bobbin type multiple integrated coupled-inductor applied 4-paralled switching rectifier was proposed. To design the proposed inductor easily, inductance designing formula was derived through magnetic circuit analysis of the 4-paralleled integrated coupled-inductor. Furthermore, to verify practicality of the proposed inductor, it was applied in 600W class 4-paralleled interleaved switching rectifier, and the steady-state characteristics of the proposed inductor and discrete inductors were compared. Consequently, it was showed that the proposed inductor can replace the conventional discrete inductors with alternative electrical characteristic standard, hence miniaturization of the SMPS can be achieved. From the test result, test circuit with the proposed inductor showed maximum 97.1% of power conversion efficiency and under 18W of power loss where the circuit with discrete inductors showed 96.7% and 20W respectively.
Keywords
Expandable inductor structure; Integrated magnetic; Power factor correction; Interleaved control; Switching rectifier;
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Times Cited By KSCI : 1  (Citation Analysis)
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