Hi,
the new alternator is not ready jet, but i work on it.
The electronic is much simplier as i think.
When the Battery (LiFePo4 12V/8Ah) is full and the Voltage raise over 14,4V, the alternator disconnect from the recifier and runs "free".
Only the "Stern-Dreieck-Schaltung" get it in.
On the Photo you could see the new alternator (in the middle), the old Beltdrive (left) and the cambelt gear-wheel.
The alternator jet get drive with a small toothed belt which runs on plastic gear wheels.
The complete Unit wight under 1kg.
Patrick