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Power Magnetics @ High Frequency- Solving the Black Magic!
Date: Saturday March 19 2016
APEC 2016 Long Beach California
 he PSMA Magnetics Committee and IEEE PELS will hold the inaugural “Power Magnetics @ High Frequency – Solving the Black Magic!” workshop. The workshop will take place the day before APEC 2016, Saturday March 19, 2016 from 7:00 AM thru 5:00 PM, at the Long Beach Convention & Entertainment Center, the same venue as APEC2016.
The purpose and focus of the workshop is:
- to identify the latest improvements in areas of magnetic materials, coil (winding) design, construction and fabrication,
- to identify, discuss and demonstrate evaluation and characterization techniques as well as modelling and simulation tools needed to meet the technical expectations and requirements for power magnetics operating at higher frequencies
- to identify and discuss the technical expectations and requirements of higher application frequencies and emerging topologies that are being driven by continuous advances in circuits topologies, semi-conductor devices driven by new market applications.
The primary target audience for the workshop are the designers of power magnetic components for use in electronic power converters who find it necessary to implement the most technologically advanced power magnetic components to achieve higher power densities, specific physical aspect ratios such as low profile, higher power efficiencies, improved thermal performance, etc. The target audience also includes people in the supply chain for the power magnetics industry ranging from manufacturers of magnetic materials and magnetic structures, fabricators of magnetic components, providers of modelling and simulation software as well as manufacturers of test and characterization equipment.
Workshop attendees will meet in Room 202 in the Long Beach Convention Center between 7:00 and 8:00 AM for a buffet style breakfast and informal networking with their colleagues and peers. During this time, attendees will have the opportunity to list the challenges to realizing magnetics in high frequency applications on a white board. Hopefully these issues can be addressed though out the day and any listed issues that are not addressed during the presentations and demonstrations can be addressed during the wrap up session at the end of the workshop.
The first session of the morning will feature three distinguished keynote speakers who will discuss advances and the state of the art in high frequency magnetics from different perspectives. Each presenter will speak for thirty minutes followed by ten minutes for Q&A. The tentative schedule for this session is as follows:
8:10 to 8:50 Dr. Charles Sullivan, Dartmouth, will explain “Design, Construction and Fabrication Strategies for Magnetic Components in Electronic Power Applications.”
8:50 to 9:30 Dr. Davit Perreault, MIT, will present “Measurements and Application Considerations of Magnetic Materials at High- and Very-High Frequencies.”
9:30 to 9:45 Break.
9:45 to 10:25 Dr. Ray Ridley, Ridley Engineering, will discuss “Modelling and Simulation Challenges for Power Magnetics Used in Electronic Power Applications.”
10:25 to 11:00 Panel Discussion: Dr. Sullivan, Dr. Perreault and Dr. Ridley will lead a panel discussion of topics of interest to the workshop attendees. Everyone’s participation is encouraged.
The keynote presentations will be followed by an interactive session of technology demonstrations each addressing specific technical disciplines and capabilities consistent with the workshop agenda. The technology demonstrations will be a combination of e-poster type displays, modelling and simulation demonstrations and measurements of actual magnetic components. Interaction between the attendees and the presenters is highly recommended during this time, as a segue from the opening keynote presentation and the structured problem solving session which will follow. The interactive technology demonstration session will coincide with a buffet lunch from 11:00 to 1:30.
The technical capabilities and disciplines that will be demonstrated displayed during the technology demonstration session are as follows:
Mark Christini, Ansys: Demonstration of Finite Element Analysis to Predict Resistance, Inductance and Losses in Magnetic Components
Len Crane, Coilcraft: SPICE Models for Power Magnetics
Ruska Patton, EMSCAN: Near Magnetic Field Characterization
Chris Mueth, Keysight Technologies: Modelling of Non-Linear Magnetics
Mike Wens, MinDCet: Magnetic Characterization with Triangular Flux Waveforms
Tom Wilson, Simplis Technologies: Simulation Models of Magnetics Based on Triangular Flux Waveforms
Jason Cuadra, Transphorm: GaN-Based Half-bridge Test Circuit for Generating > 100 V/ns Slew Rates
Rodney Rogers, Vacuumschmelze, J. C. Sun, Bs&T Technologies: Impact of Air gaps on AC Power Loss Measurements
Ranjith Bramanpalli, Wurth Elektronik: Behavior of Electro-Magnetic Radiation of Storage Inductor in DC-DC Converters
Chuck Wild, Dexter Magnetics: A panel of experts from industry, representing suppliers of components for high frequency Magnetics.
Ferroxcube, Joel Salas
Hitachi, Anuj Sharma
Micrometals, Chris Oliver
Miles Platt, Hatley
Rubadue Wire, Kyle Jensen
Immediately following the technology demonstration session there will be an open forum to summarize the discussions of the technology demonstrations led by Drs. Sullivan, Perreault and Ridley.
The third portion of the workshop will be a structured problem solving session. There will be three structured problems with each problem having its own set of electrical, physical and thermal design requirements specific to its target application, The facilitator for each structure problem will provide a typical traditional design solution and then interact with the attendees to identify alternative approaches based on leading edge technologies and materials to improve some aspect of the original design requirements whether it be efficiency, physical size, thermal performance, etc., The tentative schedule for this session is as follows:
2:00 to 2:40 Dr. Khurram Afridi, University of Colorado, Bolder, “Magnetics Design for High-Efficiency Compact Resonant Converter Architectures.”
2:40 to 3:20 Dr. Jenna Pollock, “The Integration of Analytical Analysis and Finite Element Analysis for the Design of Power Magnetics.”
3:20 to 3:35 Break
3:35 to 4:15 James Lau, CWS, “Matrix Transformer Building Blocks for High Frequency Applications”
The fourth and final part of the workshop will be a wrap-up session. Issues listed on the white board that was available since the breakfast session will be addressed to determine if the specific issues were addressed or still need more discussion The discussions of this session will be used to identify items of interest to be addressed in a roadmap for the magnetics industry covering de-facto industry practices and standards and emerging trends as well as both short term goals covering incremental improvements and longer term evolutions that are on the horizon.
The registration fee for the workshop is $250 per participant reducing to $150 for PSMA members and IEEE PELS members. Breakfast and lunch will be provided as part of the workshop. Electronic copies of the keynote presentations and the structured problem session will be made available to the workshop participants. The workshop is limited to one hundred attendees and is already at capacity; new registrations will be added to the waiting list. With such a high level of interest, discussion has already begun about planning a follow-up workshop in 2017.
The updated agenda for the workshop as well as registration information for the workshop is available on the PSMA website ( www.psma.com/technical-forums/magnetics/workshop ).
Organizing Committee:
Steve Carlsen Raytheon
Ed Herbert Independent Inventor
Rodney Rogers Vacuumschmelze
Matt Wilkowski Altera
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