DeWalt XR Brushless Design Secrets

Teardown and study of an "XR" class cordless tool from Dewalt. The motor driver, hall effect sensor and micro controller are torn down to the silicon die level. A look at the engineering that drives the impressive performance of these tools!

More details at my blog: https://electronupdate.blogspot.com/2024/04/design-secrets-of-dewalt-xr-brushless.html

Correction on video: Power transistors are FETs.

good source of data on Hall effect sensors: https://phys.libretexts.org/Bookshelves/University_Physics/Physics_(Boundless)/21:_Magnetism/21.5:_Magnetic_Fields_Magnetic_Forces_and_Conductors

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