Jürgen Biela

The Laboratory for High Power Electronic Systems (HPE) at the Department of Information Technology and Electrical Engineering of ETH Zürich is seeking a highly motivated PhD candidate to develop highly efficient and ultra-wide range converter systems for DC power supplies. The HPE lab is internationally recognized for its research on power electronic converter systems, which are essential for future energy distribution, renewable energy integration, electric vehicles, and advanced medical and accelerator applications. This new project focuses on the design and optimization of low-power DC supplies with very high efficiency and a wide input voltage range, targeting facility automation applications such as actuators and sensors. These systems often operate at low loads or in standby, but their global energy impact is significant, and improving their efficiency can substantially reduce greenhouse gas emissions. The successful candidate will develop novel converter concepts for AC/DC power supplies that maintain high efficiency even at low output power. The research will involve creating advanced multi-physics models of all relevant components, integrating these models into optimization procedures for comprehensive system efficiency, and collaborating with other PhD candidates on modeling frameworks. The candidate will also validate models and optimization results through test setups and prototype systems, working closely with an industry partner. There is an opportunity to explore integration of these converter concepts into power integrated circuits, potentially adding features and reducing costs. Applicants must hold a diploma or M.Sc. in electrical engineering with excellent grades, possess fundamental knowledge of power electronic converter systems, have good communication skills, fluency in English, and a willingness to work in an international team. Interest in detailed modeling and design of magnetic components and system optimization is important. ETH Zürich offers a dynamic, international research environment, competitive salary, excellent benefits, and encourages participation in international conferences. The university is committed to diversity, sustainability, and providing a supportive environment for professional and personal growth. Applications must be submitted online and include a CV, transcripts, thesis/publications, and references. For further information, contact Prof. Dr. Jürgen Biela at [email protected] (no applications via email).

The Laboratory for High Power Electronic Systems (HPE) at the Department of Information Technology and Electrical Engineering, ETH Zürich, is seeking a PhD candidate to develop advanced multi-physics models of high-power medium frequency transformers (MFTs). The lab is internationally recognized for its research on power electronic converter systems, which are crucial for future energy distribution, renewable energy integration, and applications such as electric vehicles and medical devices. This PhD project is part of a new research initiative focused on solid-state transformers (SSTs) for next-generation data centres, where efficient, compact, and high-power transformers are essential for managing the increasing power demands of AI and high-performance computing infrastructure. The successful candidate will work on modelling and optimising MFTs, which are key components in high-power DC-DC converters. The research will involve developing multi-physics models that capture high-frequency losses, thermal management, resonances due to parasitic capacitances, and electrical insulation. The candidate will also optimise core and winding geometry, design advanced cooling concepts, and develop solutions for high-current connections. These models will be integrated into optimisation procedures for power electronic converter systems, aiming to push the limits of efficiency and power density. The project includes hands-on work, such as designing and building MFT prototypes and converter systems to validate the developed models under realistic conditions. The position offers the opportunity to collaborate with other PhD candidates within a broader modelling framework development at HPE. ETH Zürich provides a dynamic, international research environment with excellent facilities, competitive salary, and benefits. The university is committed to diversity, sustainability, and professional development. Applicants should have a diploma or M.Sc. in electrical engineering with excellent grades, strong knowledge of power electronic converter systems, good communication skills, fluency in English, and a willingness to work in an international team. Interest in detailed modelling, magnetic component design, and system optimisation is essential. Applications must be submitted online and should include a CV, transcripts, thesis/publications (if available), and references. For further information, contact Prof. Dr. Jürgen Biela ([email protected]).

The Laboratory for High Power Electronic Systems (HPE) at the Department of Information Technology and Electrical Engineering, ETH Zürich, is offering a PhD position focused on developing advanced multi-physics models of planar inductors and transformers. ETH Zürich is renowned for its excellence in science and technology, providing a vibrant international environment and outstanding research facilities. This research project targets the modelling and optimisation of planar magnetic devices, which are crucial for compact, efficient power electronic converter systems used in energy distribution, renewable energy integration, traction/electric vehicles, and medical applications. The project involves developing digital twins and virtual prototypes at both component and system levels, with a special emphasis on PCB-based winding structures for DC-DC converters, automotive battery interconnections, and wireless charging systems. The successful candidate will create comprehensive models describing high-frequency losses, parasitic capacitances, and temperature distributions in windings and cores. The role also includes designing electrical insulation models, optimising core and winding geometry, and developing advanced cooling concepts. These models will be integrated into optimisation procedures for power electronic converter systems, aiming to push the limits of efficiency and power density. The project is part of a broader modelling framework at HPE, offering collaboration opportunities with other PhD candidates. Experimental work includes designing and building prototypes to validate new cooling and winding concepts under realistic operating conditions. The laboratory provides a scientifically exciting, full-time position within a dynamic international team, encouraging participation in international conferences and offering a competitive salary, excellent benefits, and access to state-of-the-art research facilities. Applicants must have a diploma or M.Sc. degree in electrical engineering with excellent grades, fundamental knowledge of power electronic converter systems, good communication skills, and fluency in English. Commitment to teamwork and interest in detailed modelling and design of magnetic components are essential. ETH Zürich values diversity, sustainability, and an inclusive culture, actively promoting equality of opportunity and working towards a climate-neutral future. To apply, submit your application online via the ETH Zurich portal, including a comprehensive CV, B.S. and M.Sc. transcripts, electronic copies of thesis/publications (if available), and names/addresses of references (to be sent by email to [email protected]). Applications via email or postal services will not be considered. For further information, contact Prof. Dr. Jürgen Biela at [email protected] or visit the HPE website. ETH Zürich is located in Zurich, Switzerland, and is one of the world’s leading universities in science and technology, fostering independent thinking and excellence. Join us to contribute to innovative solutions for global challenges.

ETH Zurich’s Laboratory for High Power Electronic Systems (HPE) in the Department of Information Technology and Electrical Engineering is offering a doctoral position on the development of solid-state transformers, with a specific focus on high-power medium-frequency transformers. The project is part of research on solid-state transformers for future photovoltaic and energy storage systems. The doctoral researcher will work on modelling and optimisation of high-power solid-state transformers (SSTs), with emphasis on medium-frequency transformers (MFTs), including investigation of high-frequency and high-voltage MFTs for PV systems and medium-voltage grids. Research topics include integration of battery storage systems and control of dynamic power flow between batteries and the grid, development of multiphysics models for losses, temperature, cooling, resonances, and electrical insulation, and optimisation of cores, windings, and cooling to improve efficiency, power density, and power transfer. The role also covers SST system development, power electronic converter optimisation, computationally efficient optimisation procedures, and the design, construction, and experimental validation of transformer prototypes and converter systems. The laboratory conducts internationally leading research in power electronic converter systems for energy distribution, traction, electric vehicles, medical pulse modulators, and accelerator applications. The group also develops advanced multiphysics models, digital twins, and virtual prototypes at component and system level, making this a strong environment for candidates interested in research-driven design and experimentation. Applicants should hold a diploma/M.Sc. in electrical engineering with excellent grades and have fundamental knowledge of power electronic converter systems. Strong communication skills, fluency in English, and the willingness to work as part of an international team are required. Interest in detailed modelling and design of magnetic components and in optimising power electronic systems is essential. The position is full-time and based at ETH Zurich in Zurich, Switzerland. ETH offers a competitive salary, excellent benefits, strong laboratory facilities, support for professional development, and encouragement to participate in international conferences. The university also highlights its commitment to sustainability, climate neutrality, diversity, and an inclusive working environment. Applications must be submitted online through ETH Zurich’s application portal. Required documents include a comprehensive CV, B.S. and M.Sc. transcripts, electronic copies of the B.Sc./M.Sc. thesis and/or publications if available, and the names and addresses of references. For further information, contact Prof. Dr. Jürgen Biela at [email protected]. Applications via email or postal mail will not be considered.