STILLWELL POWER GROUP
Power Electronics for the Electrified Future
We develop high-performance power conversion and motor-drive technologies for demanding electrification applications.
The Stillwell Power Group at the University of Illinois Urbana-Champaign works across converter topology, digital control, wide-bandgap devices, motor drives, multilevel and hybrid power conversion, data-center power delivery, and pulsed power.
Experimental hardware is central to our research. We design, build, control, and validate power-converter and motor-drive prototypes.
Research Areas
We combine new converter technologies with application-driven hardware, controls, and system-level design.
Electric Aviation & Motor Drives
High-power-density inverter and motor-drive architectures for high-frequency, low-inductance machines and future electrified aircraft.
Multilevel & Hybrid Conversion
Advanced multilevel, interleaved, and hybrid switched-capacitor topologies for efficiency, density, voltage capability, and waveform quality.
Data-Center Power Delivery
Compact point-of-load and intermediate-bus converters for high-current compute loads and integrated power delivery.
Pulsed Power & Emerging Systems
Lightweight power-electronic systems for pulsed loads and emerging aerospace, transportation, space, and energy applications.
Latest News & Recognition
Awards, publications, conference highlights, outreach, and life in the Stillwell Power Group.
- Delmar and Bali Win Best Presentation and Best Poster Awards at IEEE COMPEL 2026Congratulations to Aria Delmar and AJ Bali for receiving presentation awards at the 2026 IEEE Workshop on Control and Modeling for Power Electronics (COMPEL)… Read more: Delmar and Bali Win Best Presentation and Best Poster Awards at IEEE COMPEL 2026
- SPG at 2026 Grainger Power Awards
Along with a large cohort of UIUC Power Students, SPG graduate students Ryan Billings and Aidan Rodgers received the Grainger Power Award. The Other… Read more: SPG at 2026 Grainger Power Awards - SPG 2025 Fall Dinner
Members of the SPG and friends gathered at the Dr. Stillwells’ house to enjoy camaraderie and dinner. Special thanks to the other Dr. Stillwell… Read more: SPG 2025 Fall Dinner
Build the Next Generation of Power Electronics
Interested in hands-on research spanning circuits, controls, hardware, motor drives, computing, and electrified transportation?