Printed Circuit Board Embedded Inductors for Very High Frequency Switch-Mode Power Supplies

Mickey Pierre Madsen, Arnold Knott, Michael A. E. Andersen, Anders P. Mynster

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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Abstract

The paper describes the design of three different structures for printed circuit board embedded inductors. Direct comparison of spirals, solenoids and toroids are made with regard to inductance, dc and ac resistance, electromagnetic field and design flexibility. First the equations for the impedances are given and an example of the achievable impedances are given. Prototypes are then made and measured. The differences between the three structures and the accuracy of the formulas are evaluated. Finite element simulations are used to investigate the magnetic field around the structure, in order to take possible electromagnetic interference problems into account, when the structures are compared. The simulated fields are verified through near field measurements performed on the prototypes. Finally design flexibility are considered, both regarding scalability and design of the individual inductors and implementation in a complete design. At the end of the paper a summary of pros and cons of the three structures are listed.
Original languageEnglish
Title of host publicationProceedings of 2013 IEEE ECCE ASIA DOWNUNDER
PublisherIEEE
Publication date2013
Pages1071-1078
ISBN (Print)78-1-4799-0482-2
Publication statusPublished - 2013
EventECCE Asia DownUnder 2013 : 5th Annual International Energy Conversion Congress and Exhibition - Crown Convention Centre, Melbourne, Australia
Duration: 3 Jun 20136 Jun 2013

Conference

ConferenceECCE Asia DownUnder 2013
LocationCrown Convention Centre
CountryAustralia
CityMelbourne
Period03/06/201306/06/2013

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