Design methodology and fabrication process of a microinductor for the next generation of DC-DC power converters

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Abstract

Magnetic materials used in cored microinductors to supersede ferrite in the 0.5-10 MHz frequency range are investigated in this article. The performance of electrodeposited nickel-iron, cobalt-iron-copper alloys and the commercial alloy Vitrovac 6025 have been assessed through their inclusion within a custom-made solenoid microinductor. Although the present inductor achieves 77% power efficiency at 500 KHz for 24.7 W/cm3 power density, an optimized process predicts a power efficiency of 97% for 30.83 W/cm3 power density. The main issues regarding microinductor design and performance are discussed. © 2009 Springer-Verlag.

Original languageEnglish
Pages (from-to)1233-1243
Number of pages11
JournalMicrosystem Technologies
Volume15
Issue number8
DOIs
Publication statusPublished - Aug 2009

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