PSMA Magnetics Committee & IEEE PELS High Frequency Magnetics Workshop @APEC 2018

PSMA Magnetics Committee and IEEE PELS High Frequency Magnetics Workshop

Power Magnetics @ High Frequency -  Eliminating the Smoke and Mirrors

Date: Saturday March 3, 2018

APEC 2018 San Antonio, Texas

The PSMA Magnetics Committee and IEEE PELS will conduct the third “Power Magnetics @ High Frequency” workshop on Saturday, March 3, 2018, which is the day before and at the same venue as APEC 2018.

The purpose and focus of the workshop is to identify the latest improvements in magnetic materials, coil (winding) design, construction and fabrication, evaluation and characterization techniques and modelling and simulation tools so as to target the advancements that are deemed necessary by the participants for power magnetics to meet the technical expectations and requirements of higher application frequencies and emerging topologies that are being driven by continuous advances in circuits topologies and semi-conductor devices driven by new market applications.

The workshop will consist of two technical lecture presentations sessions and an interactive technology demonstration presentation session. The two technical lecture presentation sessions will each be followed with panel Q&A session and the technology demonstrations will also be available during the breakfast just prior to the opening session of the workshop and during the networking session following the workshop’s formal presentation sessions.

The morning session on ac power losses will begin with a keynote presentation by Charles Sullivan from The Thayer School of Engineering at Dartmouth College that will provide a technical overview ac power loss calculation modelling and measurement issues. Stefan Ehrlich of Fraunhofer Institute will address accuracy and compensation issues for ac power loss measurements, Marcin Kacki of SMA magnetics will address impact of physical dimensions effects on core loss, Byron Beddingfield of North Carolina University will review generic test methods and Ed Herbert of PSMA will present a proposal for generic specification sheets.  Dr. Ray Ridley of Ridley Engineering will summarize the session with a discussion of “what’s needed going forward”. The morning session will be followed with a panel Q&A consisting of the morning’s presenters.

The lunch session will be an interactive technology presentation session during which the workshop attendees can visit and engage with the experts as they provide technical demonstrations of different topics associated with magnetics design, modelling and characterization. Some of the technical topics and experts are as follows; thermal limitations versus power loss efficiency limitations by Chris Oliver of Micrometals, spice modelling of winding losses by Ray Ridley of Ridley Engineering, ac power loss under square wave excitation by JC Sun of Bs&T, design and modelling issues associated with gapped cores by Bruce Carsten of Peak, DC-biased cores for high frequency applications by Sumida, practical implementation of litz wire by Kyle Jensen of Rubadue, impact of distributed gaps in air cores by Jan Simecek and Bernaud Michaud of Epcos as well as other technical demonstration sessions that are also being planned.

The afternoon session on fringing effects will begin with a keynote presentation by Charles Sullivan that will provide a technical overview of the topics to be covered during the morning session.  Dr Johann Kolar of ETH will provide a presentation of the losses due to fringing flux in cut cores, Sumida will present simple analytical methods to calculate air gap induced eddy current losses in inductive components and Ranjith Bramanpalli of Wurth Elektronik will discuss near magnetic field considerations for power magnetics design. There also will be presentation on power losses associated with distributed air gaps and the impact of fringing effects on practical design applications.  The session will be followed with a panel Q&A consisting of the afternoon’s presenters.

The registration fee for the workshop is $325 per participant reducing to $225 for PSMA members and IEEE PELS members. On February 1 2018 the registration fee will increase to $375 reducing to $275 for PSMA members and IEEE PELS members. Breakfast and lunch will be provided as part of the workshop. Electronic copies of the technical lecture presentations and technology demonstration presentations will be made available to the workshop participants.

One can register for the Power Magnetics @ High Frequency – Eliminating the Smoke and Mirrors workshop at the following url:

There will be at least two student waivers for registrations fees. Students can apply for one of the two available waivers by downloading and submitting the waiver application form available on the PSMA website.

The latest information on agenda as well as registration information for the workshop will become available on the PSMA website over the next few months at: .

Organizing Committee

Steve Carlsen, Raytheon

Ed Herbert

Khurram Afridi, University of Colorado Boulder

Ali Bazzi, University of Connecticut

Rodney Rogers, All Star Magnetics

Laili Wang, Xi’an Jiaotong University

Fred Weber, Future Technology Worldwide

Chuck Wild, Dexter Magnetics