Ciro Pabón wrote:I'm not sure at all if the alternator keeps producing current (and, thus, a load in the engine) when the regulator "switchs off" the current to the battery.
Can someone enlighten me on that?
The kind of alternator used in cars regulate output by adjusting the current to the electro magnet inside the generator, making the magnetic field stronger or weaker and thus making the generator windings put out more or less current. No current to the electro magnet = no magnetic field = the generator does nothing except cause some frictional losses.
The kind of alternator used on motorcycles is a diffrent animal, those use permanent magnets and regulate output by shortcurcuiting the generator a part of the time. Not as inefficient as it sounds, but there are losses for sure.