Industry Led Research Programme in Power Electronics - Magnetics

Dr. Maeve Duffy, Christina Collins, Sean Kelly

The design of magnetic components for operation at switching frequencies greater than 3 MHz will be developed. A range of suitable core materials will be identified and characterized for typical voltage and current waveforms encountered in VRM applications. Processes necessary for producing suitable core shapes will be reviewed and developed using available technologies. Winding technologies will also be evaluated, including Litz, stamped copper and PCB. A design procedure for best winding and core technologies will be provided, and applied to demonstrate a 40 A inductor operating in a 1 - 5 MHz switching DC/DC converter.

Start date: 9th of June 2006. This project has been completed.

Project collaborators: PEIG

Project Publications

Conference
M. Duffy, C. Collins, F. M. F. Rhen, P. McCloskey, S. Roy, “High Current Inductor Design for MHz Switching”, 38th IEEE Power Electronics Specialists Conference, PESC’08, Rhodes, Greece, pp. 2672–2677, June 2008.
S. Kelly, C. Collins, M. Duffy, F. Rhen, S. Roy, “Core Materials for High Frequency VRM Inductors”, Proceedings of the 38th IEEE Power Electronics Specialists Conference, PESC’07, Orlando, Florida, USA, 1767–1772, June 2007. 

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