i'm thinking about another way to mechanically study the situation...
Imagine this...
two wheels having electromagnets north pointing out on one wheel and south on the other.
the rotate making the electromagnets face each other...
Now from my understand i got this...
A north pole electromagnet approaching a south pole electromagnet is going to induce a north pole to the south electromagnet (according to lenz to oppose the movement) and a positive at this south lead. (dot)
The south pole electromagnet in turn approaching the north pole electromagnet also induces a south pole thereto another positive into the dot .
so basically the two electromagnets given a choke transformer is connected between them should behave as field coils and as output coils since the dc current can flow thru the coils continuously.
In my analysis the north pole approaching the south pole even are accelerated against each other because of the attraction force
when they get away i get that the voltage on both leads reverses...