Permanent Magnet Coupled Power Inductor for Multi-phase...

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Permanent Magnet Coupled Power Inductor for Multi-phase DC-DC Switching Power Converters

A permanent magnet on-chip power inductor (PMOI) consisting of a spiral design and a multi-stage permanent magnet. The design
utilizes a permanent magnet to generate a flux cancellation effect which aids in yielding a
100 percent increase in the saturation current. This design reduces the total power inductor size to half for the same inductance value, and/or doubles the inductance
density.

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Inventor

Dr. Jaber Abu-Qahouq

Inventor Profile[/x-box-perceptive]

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Patent Status

Patent Pending

Patent Link[/x-box-perceptive]

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Commercialization

Licensing or sponsored research

Please contact our team to learn more about this technology or license it from The University of Alabama

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Whitney Hough

wlhough@ua.edu

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Ben Bickerstaff

bhbickerstaff@ua.edu

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The University of Alabama

Founded in 1831 as the state’s first public college, The University of Alabama is dedicated to excellence in teaching, research, and service.

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The University of Alabama

Founded in 1831 as the state’s first public college, The University of Alabama is dedicated to excellence in teaching, research, and service.

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UAIPD 13-0002: Permanent Magnet Coupled Power Inductor for Multi-phase DC-DC Switching Power Converters