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High current inductor design for MHz switching

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conference contribution
posted on 2010-09-03, 12:26 authored by Meave Duffy, Christina Collins, Fernando M.F. Rhen, P. McCloskey, Saibal Roy
High current inductor applications operating in the MHz range are generally limited to Voltage Regulator Modules (VRM’s) and Point of Load (POL) power supplies, where the issue of fast transient response demands reduced inductance values. State-of-the-art controller IC’s enable switching frequencies up to 8 MHz for low current POL applications. However, for current levels higher than 1 A, commercial inductors are not generally quoted as suitable for operation beyond 5 MHz. The application of electroplated metal alloy foils to produce competitive discrete cores suitable for operation in the range of 1 – 5 MHz is investigated in this paper.

History

Publication

Power Electronics Specialists Conference, 2008 proceedings;pp. 2672-2677

Publisher

IEEE Computer Society

Note

peer-reviewed

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SFI, EI

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©2008 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.

Language

English

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