I learned that brushless DC motor windings have an algorithm for winding depending on several variables.... When I google image search BLDC stator, I expect to see this : But I see a lot more of this : Is this second one still a brushless DC? If so, do they just lose efficiency by winding it this way instead of putting 1 coil across multiple stator teeth? The first picture, with the coils spanning multiple teeth... this is the way I learned it. But the second way definitly looks easier to manufacture. So yeah, is picture 2 still a brushless DC? How can I figure out the difference in efficiency between the different winding methods?