On Sun, Aug 22, 2021 at 02:02:45PM -0700, David Christensen wrote:
[...]
What is "BLDC"?
Brushless (electric) DC motor [1]. Back Then (TM ;-), to turn an
electric motor around you had to switch around the magnetic field
in the coils at (about) the right time. This was accomplished by
sliding contacts (aka "brushes") on a sectioned cylinder.
These days you use silicon magic (aka electronics to accomplish
the same thing.
I say "back then" above, but there seem to be design parameters
which still favour brushes. My reasonably recent power drill
still has brushes.
Cheers
[1] https://en.wikipedia.org/wiki/BLDC
- t