In the above presented dynamo design, three snapshots taken during three instances during the rotor running. In fig 1 the approaching magnet builds an induced voltage across the coil, however the circuit is still open, hence no current flows. In fig 2 when the rotor reaches TDC (top dead center) switch is closed leading to the flow of current into the load. According to lenz law, this induced current flows so as to create north pole on the rotor facing side of the coil, and this will push the rotor away thus adding to the kinetic energy of the flywheel. I wonder how the back mmf instead of braking the fly wheel, it pushes/propels the fly wheel, I hope you mates share your suggestions and critics on this idea, thank you.