Examples of Expertise

Automotive EMC issues

On-Board Charger: identify the sources of conducted emissions (LLC or PFC). Propose source-level mitigation measures. Differential-mode filter sizing. Problem solved -> 100%

GaN transistor failure issue

On-Board Charger: identify the causes of unexplained GaN failures at low power and high battery voltage. Propose alternatives. Problem solved -> 100%

Aeronautical EMC issue

Avionics: sizing of common-mode and differential-mode input filters for an aerospace power supply. Identify crosstalk issues between converter stages (LCC, ZVS PFC).

Support for VTOL drone DC/DC routing

Avionics: support for the control strategy of power distribution regulation (battery, alternators, supercapacitors, battery charger). Strong mechatronic constraints.

Support for matrix AC/DC routing

Automotive: explanation of the physical challenges and support for designing a high-frequency switching cell with ZVS / partial hard switching. Three-phase single-stage matrix topology.

Support for control algorithm development

Automotive: bidirectional GaN, challenge of 2-step or 4-step switching sequences. Avoid cross-conduction issues.

Support for microcontroller innovation

Industry: for a manufacturer of microcontrollers dedicated to power electronics, advice on low-level control strategy to define the tools and performance required for modern power electronics (>500 kHz, picosecond timers, ...)

Support for industrial motor driver failures

Photovoltaic tracker: during fast grid blackouts, motor drivers fail. Mathematical explanation and modeling of the physical phenomena causing overvoltages and failures. Development of protection prototypes to prevent failures.

Support for microgrid theory

Microgrid (smart grid): electrification of isolated areas (islands, remote off-grid villages), development of control algorithms enabling load sharing between different sources (gensets, solar, wind turbines, battery storage). Theoretical and practical study of grid stability (at the macroscopic level and within the 50 Hz sinusoidal waveform). Management of active power, reactive power, and non-linear loads.