Planar inductor with ferrite layers for DC-DC converter

Fukuda, Y.; Inoue, Tatsuo; Mizoguchi, T.; Yatabe, S.; Tachi, Yoshiaki

doi:10.1109/tmag.2003.812708

Cited by 86 publications

(28 citation statements)

References 3 publications

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“…In these systems, to have a high inductance and flat configuration, spiral windings are used [1][2][3]. Besides, these coils have an extensive application in power electronics and dc/dc converters due to their flatness and special configuration; so they are better replacement for the ordinary inductances to reduce the volume of the converter [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

A New Methodology for Magnetic Force Calculations Between Planar Spiral Coils

Shiri¹,

Shoulaie²

2009

PIER

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Abstract-Due to the special structure of current carrying planar spiral coils, precise calculation of the forces between them is complicated and time-consuming. To overcome these problems, in this paper a new and fast method is proposed for calculation of the magnetic forces between planar spiral coils. The advantage of the proposed method is that just by having the external dimension of coils and their number of turns, the force between them at different distances and with different currents can be calculated. The results obtained by direct and proposed calculation methods show the efficiency of the latter in simplicity and calculation time. The precision of the proposed method has been confirmed by experimental tests done on constructed coils.

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Section: Introductionmentioning

confidence: 99%

A New Methodology for Magnetic Force Calculations Between Planar Spiral Coils

Shiri¹,

Shoulaie²

2009

PIER

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“…On-chip or similar-scale inductors built for power converters in the multi-megahertz region include [22]- [39] and are reviewed in [40], [41]. With sufficiently small volume, the magnetics can be embedded in the substrate of the power circuit or within a secondary substrate and flip-bonded above the power circuit.…”

Section: Magnetics Technologymentioning

confidence: 99%

A Technology Overview of the PowerChip Development Program

Araghchini

Chen

Doan-Nguyen

et al. 2013

IEEE Trans. Power Electron.

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Abstract-The PowerChip research program is developing technologies to radically improve the size, integration, and performance of power electronics operating at up to grid-scale voltages (e.g., up to 200 V) and low-to-moderate power levels (e.g., up to 50 W) and demonstrating the technologies in a high-efficiency light-emitting diode driver, as an example application. This paper presents an overview of the program and of the progress toward meeting the program goals. Key program aspects and progress in advanced nitride power devices and device reliability, integrated highfrequency magnetics and magnetic materials, and high-frequency converter architectures are summarized.Index Terms-Gallium nitride, high frequency (HF), integrated magnetics, integrated power converter, light-emitting diode (LED) driver, PwrSoC.

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“…Usually [4][5][6][7], most integrated inductors have a spiral shape, because their geometry is adapted to integration and they can easily be drawn with common layout editors. The parametric study is set with constant external dimensions for the spiral coil (300 Â 300 mm 2 ).…”

Section: Optimization Of Coils Parameters Without Magnetic Filmmentioning

confidence: 99%