As a quick update on this, I have come to the conclusion that trying to make this work the "proper" way - creating a boost function or using the inbuilt one - will be too complex and probably not work. I will need to join the hunt for ways to canbus-drive the boost logic, which honestly I ...

I still wish I understood what they meant by "Synchronous three-phase machine with five-phase alternating voltage".

Actually this explains a lot about the design I'm looking at - in particular each of the five phases from the windings comes into a separate pad with components on it, and one of these is a 2mOhm precision shunt https://www.isabellenhuette.de/fileadmin/Daten/Praezisionswiderstaende/Datenblaetter/BVB...

Oh - that's really interesting, and the principle makes sense. Although I had reckoned that when you didn't want the battery to charge, the controller would simply lower the field / armature current (or lower the duty cycle, if it's using PWM), and the generated output voltage would drop. But I get ...

Hi Leo - I am working on - I believe - exactly the same unit as you - although trying to get it working as a 48v generator rather than a motor. It seems to be part of a standard package which Lucas sells to vehicle manufacturers wanting to do "light hybrid" versions of their cars. I am doc...