Improving the performance of DC-AC and AC-DC power conversion systems is key to reducing system weight, extending operational autonomy, and enhancing compactness. This PhD project aims to explore novel topologies of integrated power converters by leveraging an emerging component: solid-state micro-batteries.

The research will begin with a system-level study of two representative applications — one AC-DC and one DC-AC — to define the constraints and opportunities offered by solid-state batteries. The candidate will then identify and co-optimize the most suitable converter topology for ultra-low power operation (in the milliwatt range) in conjunction with a matrix of available micro-batteries. The work will culminate in the design, fabrication, and experimental validation of the proposed architecture.

Co-supervised by Dr. Gaël Pillonnet (CEA-Leti, France) and Prof. Patrick Mercier (University of California, USA), the candidate will join a cutting-edge research environment focused on advanced Power Management Integrated Circuits (PMICs). This project offers a strong application-oriented dimension, targeting the co-optimization of circuits and emerging micro-storage components within ultra-compact systems, such as micro-motor actuation and micro-powering from mains voltage.

Joining our team means contributing to the advancement of disruptive technologies with high potential impact in fields such as healthcare, defense, and predictive maintenance.