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PCIM 2023 Tutorial

New Soft Switching and Magnetic Technologies for Very High Efficiency and Power Density

Schedule: May 8, 2023   9:00 am – 5:00 pm (GMT+2)

Place: Messezentrum 1, 90471 Nürnberg, Deutschland

Soft switching topologies have become popular in many applications in the last twenty years. The most popular soft switching technology, the LLC topology is not suitable for a larger input-output voltage range necessary in many applications such as battery charges, though some complex

solutions were recently proposed.

The latest developments in semiconductor technologies such as SiC and GaNs devices have

facilitated the soft switching operation. The ultra-low impedance of the latest semiconductor

devices has also created the opportunity for new magnetic technologies.

The goal of this seminar is to present new soft switching technologies which can be applied to

any of the classical hard switching topology converting them to a “true soft switching topology”. In “true soft switching topology”, the primary switching devices turn on at zero voltage and the

secondary switching devices turn off at zero current. There is no ringing or spikes across any of the switching devices in primary or secondary. Unlike LLC topologies the new technologies can efficiently operate for an output voltage range of 6:1, and a total input-output voltage range of

18:1 for power delivery 3.0 and 3.1. The seminar will also present several new magnetic

technologies suitable with these new soft switching topologies for higher output power for

Automotive with very high efficiency for isolated DC-DC converters. Very informative for

engineers working in Automotive for high power chargers including bidirectional

chargers and also for lower power applications such as ultra-high-density AC-DC

adapters in compliance with P.D. 3.0 and 3.1.

Who should attend?

Electrical engineers, magnetic engineers, and engineering managers in the power conversion field, with application in Automotive, industrial and consumer product. Students in power electronics are also welcomed.

PCIM 2023 Seminar

Magnetic Design for Very High Efficiency and Power Density

Schedule: May 7, 2023 2:00 – 5:30 PM (GMT+2)

Place: Arvena Park Hotel, Nürnberg

The tremendous progress in semiconductor technology moved the spotlight for very high efficiency quest towards the magnetics. A study of the loss mechanism in the magnetics and ways to improve it, together with Novel magnetic structures will be presented. The

seminar will present in detail all the parasitic elements in the magnetics, the loss

mechanism associated with it and solutions in addressing them. This section will be also highlighted with design examples in application wherein the power conversion efficiency reached 99%. Another section of the seminar will be dedicated to magnetic integration. It will start with Quasi-Integrated Magnetic wherein the main transformer becomes a partial energy storage reducing the size of the output filter. This concept can lead to great

optimization of the power train efficiency. The presentation will continue with the

“multi-legged” magnetic configuration, which is the latest magnetic technology today,

referred also as “ultra-planar” magnetic. Other forms of distributed magnetic structures

will be presented, some of them in power converters with the highest power density and lowest profile on the market. Another chapter is dedicated to wireless magnetic

structures, with experimental data and examples ranging from power level of 10W to

1KW wireless applications. Very informative for engineers working on increasing the

efficiency and power density in high power chargers in Automotive power converters to the ultra-high-density AC-DC adapters.

Who should attend?

Electrical engineers, magnetic engineers, and engineering managers in the power

conversion for Automotive, Industrial and Consumer field. Students in power electronics are also welcomed.