PhD Candidate / PhD Candidate

PhD Position for Developing Multi-Physics Models of Planar Inductors and Transformers

100%, Zurich, fixed-term

The Laboratory for High Power Electronic Systems (HPE) at the Department of Information Technology and Electrical Engineering of ETH Zurich conducts internationally leading research on power electronic converter systems. These systems are vital for future energy distribution networks that integrate renewable energy sources as well as for traction applications in electric vehicles. Another research focus includes solid-state pulse modulators for medical applications, such as computed tomography and cancer treatment, alongside accelerator technologies at CERN.

For a new research project focused on planar magnetics for highly compact, low-profile power electronic systems, we are seeking a:

PhD Candidate (100%) for Developing Multi-Physics Models of Planar Inductors and Transformers

Job Description

We are looking for highly motivated individuals with an outstanding academic background interested in pursuing a PhD in the crucial and multidisciplinary field of modeling and optimizing planar magnetic devices (inductors and transformers). Compact and highly efficient planar magnetic devices, using PCB-based winding structures, are essential components in many power electronic converters with low profiles. Applications include DC-DC converters (PoL converters) in future data centers as well as automotive applications that interconnect the main drive battery with auxiliary systems. Additionally, planar magnetic devices are frequently required in wireless charging and energy transfer systems, where efficiency and compactness are paramount.

To maximize the efficiency and power density of these planar magnetic devices, you will develop multi-physics models that comprehensively detail high-frequency losses in the windings, parasitic capacitances, and temperature distributions within the windings and the core. You will also create models to design electrical insulation for the windings and engage in optimizing the core and winding geometry. Furthermore, you will explore innovative cooling concepts for both the windings and core, identifying technological barriers to enhancing the power density of planar magnetics.

The models developed should seamlessly integrate into optimization procedures for power electronic converter systems, essential for achieving exceptional system efficiencies and power densities and gaining a competitive edge in the field. This project is part of a broader modeling framework development initiative at HPE, allowing collaboration with other PhD candidates on various aspects of modeling.

To validate the newly established cooling and winding concepts and models, you will design and construct several prototypes, including power electronic converter systems to evaluate planar magnetics under realistic operating conditions.

Profile

• You should hold a diploma/M.Sc. degree in electrical engineering with excellent grades.
• Fundamental knowledge of power electronic converter systems is required.
• Good communication skills are essential.
• Fluency in English is a must.
• A commitment to working collaboratively as part of an international team is necessary.
• A keen interest in detailed modeling, design of magnetic components, and optimization of power electronic systems is desired.

Workplace

Our laboratory offers a challenging and scientifically stimulating full-time position within a vibrant international team at one of the world's leading technical universities. We strongly support participation in international conferences, provide a competitive salary, excellent benefits, and outstanding research and laboratory facilities for your experiments.

We Offer

• Your job with impact: Become part of ETH Zurich, an institution dedicated not only to your professional development but also to fostering positive changes in society.
• We actively promote sustainability and aim for a climate-neutral university.
• Numerous employee benefits, including public transport season tickets, car sharing, a wide range of sports activities, childcare options, and attractive pension plans.
• A stimulating full-time position in a diverse, international team at a globally recognized technical university.
• Encouragement toward participation in international conferences and access to competitive salaries along with excellent benefits and research facilities.

We Value Diversity and Sustainability

ETH Zurich is committed to fostering an inclusive culture. We promote equal opportunities, value diversity, and ensure a working and learning environment where the rights and dignity of all staff and students are respected. Visit our Equal Opportunities and Diversity website to learn how we cultivate a fair and open environment for growth and excellence. Sustainability is a core value, and we strive for a climate-neutral future.

Curious? So Are We!

We invite you to Apply online using the form below. Please ensure that your application includes the following documents:

• A comprehensive CV
• Your B.S. and M.Sc. transcripts
• Electronic copies of your B.Sc/M.Sc. thesis and/or publications (if available)
• Names and addresses of references should be sent via email to Prof. Dr. Jürgen Biela at jbiela@ethz.ch.

Please note that only applications matching the job profile will be considered.

About ETH Zurich

ETH Zurich is among the world's leading institutions specializing in science and technology. We are recognized for our excellent education, forefront research, and our commitment to transferring new knowledge to society. With over 30,000 individuals from more than 120 countries, ETH Zurich is a place that promotes independent thinking and fosters an environment of excellence. Located in the heart of Europe, we connect globally to develop solutions for the pressing challenges of today and tomorrow.