Duleepa J. Thrimawithana, Associate Professor at University of Auckland, delivered a compelling and forward-looking lecture titled “Beyond AI – The Next Technological Revolution: Cryogenic Power Electronics for Superconducting Systems”, highlighting his pioneering research in next-generation energy systems.
At the centre of the lecture was Dr Thrimawithana’s cutting-edge work in cryogenic power electronics. He shared key technical insights into the behaviour of GaN HEMTs operating at cryogenic temperatures, alongside the development of a high-performance cryogenic buck converter achieving efficiencies exceeding 99%. These advancements represent a significant step toward the practical realisation of superconducting power systems, with far-reaching implications for energy efficiency and high-performance computing.
A strong emphasis was placed on the collaborative nature of this research. Dr Thrimawithana highlighted partnerships between academia and industry, both within New Zealand and internationally, which have enabled the translation of theoretical research into real-world applications. Notably, the work has already contributed to the creation of successful spin-out companies, demonstrating its commercial and technological impact.
Beyond the technical depth, the lecture offered valuable insight into emerging technologies that extend beyond the current focus on artificial intelligence. Dr Thrimawithana’s work positions cryogenic power electronics as a key enabler of future superconducting systems, opening new frontiers in engineering innovation.
Held on 14 April 2026 at the Fickling Convention Centre, the event was hosted by the Institution of Engineering and Technology Auckland Local Network and attracted a diverse audience of engineers, researchers, industry professionals, and students.
The evening commenced with a welcome and introduction by Timothy O’Brien, a former student of the speaker. Closing remarks were delivered by Warren McLuckie, Chairperson of the IET.
The event concluded with a networking session over refreshments, providing attendees with an opportunity to engage directly with Dr Thrimawithana and discuss the future of superconducting technologies.
George Arulanantham ONZM, QSM, JP
