can i get the details of brushless DC motor?

Question

working of brushless motor

Answer 1

I explain the brushless at last.

The casing has two permanent magnets mounted inside. Then the Armature with coils of wire spins within this magnetic field producing electricity. At the top of the armature is the commutator (I think this the name). The commutator has separate sections on which the Brushes run and feed the electricity out or in.
So, if we apply voltage we can make it turn like a motor.
The motor in the link below I will explain. #5 is the case. #15 the armature. #8 the commutator with brushes. In this motor it just opposite of what I say about the magnetic field. Both work, depending on construction. #5 the case we see the coils of wire and #15 the armature we see the magnets. But, it can be as I said and the magnetics in the case and coils in the armature.
http://www.bestanddonovan.com/redstrksgl/emtr.jpg


Now this picture is the brushless motor.
http://www.pacsci.com/images/pmbdiag.gif
Here it basically the same as the concept above. But, the brushes are removed and replaced with a pickup coil (This what I call it). In the picture it referred to as a Halls encoder.

This this best I can explain.