Fred wrote:
"The Natural Philosopher" wrote in message
...
Fred wrote:
"The Natural Philosopher" wrote in message
...

The commutator is to ensure the field
in the rotor is aligned wrt the stator to provide continuous torque. Not
sure where you get 3 phase from.
Each winding gets an AC signal. Each winding is switched at 120 degrees
phase to the next one: If I told you that and told you nothing else, you
would say 'ah, a 3 phase AC motor!!'


With 3 brushes equally spaced I suppose?

No, three commutator segments spaced equally.

In some respects you're right but for all the wrong reasons!