Beyond the Ideal Transformer: When Picofarads Matter in MHz Power Conversion

Webinar details

High-frequency transformer modelling becomes increasingly important as power converters move into the multi-megahertz (MHz) range. At these frequencies, even parasitic capacitances measured in picofarads can significantly affect transformer behaviour, soft switching, efficiency and overall converter performance.As power converters move into the multi-megahertz (MHz) range, transformer behaviour becomes increasingly difficult to predict using traditional idealised models. Even parasitic capacitances measured in picofarads can have a significant impact on soft switching, efficiency and overall converter performance.

In this webinar, we’ll explore how intrawinding and interwinding capacitances influence high-frequency transformer behaviour and introduce a physics-based lumped transformer model validated up to 30 MHz across multiple transformer geometries. Using real-world validation at 6.78 MHz and 13.56 MHz, we’ll demonstrate how more accurate transformer modelling can support the design of efficient, high-power isolated and resonant converters.

• The webinar will be recorded and will be sent out to registered attendees afterwards.
• A certificate of attendance will be provided to attendees who request one near the end of the live webinar session.
• Please note: the time stated on this event is in UTC. You will need to convert this to your own time zone.

Key takeaways from this webinar:

• Why the ideal transformer assumption breaks down at multi-MHz frequencies.
• How picofarad-scale parasitic capacitances can affect soft switching and converter efficiency.
• How physics-based transformer modelling can more accurately predict high-frequency behaviour.
• What validation at 6.78 MHz and 13.56 MHz reveals about real-world transformer performance.
• Practical considerations for designing high-frequency, high-power isolated converters that reliably achieve soft switching.

• Date: Thursday 27th October 2026
• Time: 10:00 AM – 11:00 AM UTC
• Location: Online Session

Meet the Presenter

Muhammad Ehab, EIT Lecturer

Muhammad Ehab received the B.S degree from The University of Lahore, Lahore, Pakistan, in 2019 (with the highest distinction where he was also awarded with a Gold Medal for academic excellence) and the M.S degree from Soongsil University, Seoul, South Korea, in 2023, both in electrical engineering. He is currently working towards the PhD degree in electrical engineering from The University of Western Australia, Perth, Australia and is a lecturer at the Engineering Institute of Technology, Perth, Australia.

His research focuses on high frequency power electronics, modeling of magnetic devices and components, power converters, microgrids, and the analysis, design and development of advanced control strategies for grid connected inverters.

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