Podcasts · The Hardware Podcast with Fexingo: Chips, Devices, and Electronics Engineering Conversations
How Chips Use On-Chip Hall Sensors for Magnetic Sensing
· 10 min · S2 E87
Episode How Chips Use On-Chip Hall Sensors for Magnetic Sensing
In this episode of The Hardware Podcast, Lucas and Luna explore how chipmakers are embedding Hall effect sensors directly onto silicon to measure magnetic fields at the microscale. They discuss the physics behind the Hall effect, the specific design challenges of integrating these sensors into CMOS processes, and a concrete example from an automotive electronics supplier that uses on-chip Hall sensors for contactless position sensing in electric vehicle motors. The conversation also touches on how this technology enables smaller, cheaper, and more reliable magnetic sensing compared to discrete sensor modules, and why it matters for the future of robotics and industrial automation. Listeners will learn about the trade-offs between sensitivity, noise, and power consumption, and why companies like Allegro MicroSystems and Melexis are investing in this approach.
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Transcript
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