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Core materials for high frequency VRM inductors

Date
2007
Abstract
The application of PCB integrated electroplated cores for VRM inductors is proposed, where the motivation is to increase frequencies beyond 1 MHz so that VRM transient response can be improved. It is shown that electroplated alloys have loss properties that are at least competitive with those of the highest frequency ferrite material available. Various PCB integrated inductor designs are presented, with toroidal cores providing the smallest solution. Measured losses under nonsinusoidal operating conditions are provided and work is ongoing to characterise the materials further.
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peer-reviewed
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Physics
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Rhen_core.pdf
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Keywords
PCB integrated inductor, electroplated alloys, toroidal cores, transient response, PCB integrated electroplated cores, non-sinusoidal operating conditions, high frequency VRM inductors
ULRR Identifiers
https://hdl.handle.net/10344/553
 https://doi.org/10.34961/10087
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Funding Information
Enterprise Ireland (EI)
Sustainable Development Goals
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