Uploaded April 2024 | Updated September 2026, 3 weeks ago
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: 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: phys.libretexts.org/Bookshelves/University_Physics/Physics_(Boundless)/21:_Magnetism/21.5:_Magnetic_Fields_Magnetic_Forces_and_Conductors
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: 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: phys.libretexts.org/Bookshelves/University_Physics/Physics_(Boundless)/21:_Magnetism/21.5:_Magnetic_Fields_Magnetic_Forces_and_Conductors
