The rapid transition towards highly efficient electric vehicles (EVs) demands next-generation power switches, where accurate, high-speed current sensing is critical for optimizing motor control and ensuring system safety. While traditional Hall-effect sensors lack the required bandwidth, emerging hybrid magnetic sensors, combining a Hall plate for low-frequency measurements with an integrated pickup coil for high-frequency transients, offer a promising broadband solution. However, their widespread automotive adoption is currently hindered by severe reliability issues. Extreme thermal cycling, mechanical packaging stress, and component aging cause mismatch and drift between the two sensor paths, progressively degrading the crossover filter and overall system accuracy. This project aims to solve this critical bottleneck by designing and validating highly reliable, fully integrated CMOS readout circuits for hybrid magnetic current sensors. By developing novel mixed-signal architectures that feature either stress-resilient on-chip crossover filters or novel single signal path readout chains, this research will actively mitigate lifetime accuracy concerns. Ultimately guaranteeing long-term stability alongside high-speed performance to enable safer, more efficient, and longer-lasting EV powertrains.
23/4/2027 11:00 - 12:00
ESAT Aula R
