So, for some time, I've been wanting to properly set up 12V DC power on my Peugeot. I'm using a 5-coil stator with CDI, and the 12V DC would be nice for a water pump, or any other fun things (cool horn??).
I noticed that each of the posts on that stator is oriented at 60 degrees, so I thought I would be able to set up a nice 3-phase system like all modern Hondas use. This would mean I could use a nice, reliable Honda regulator/rectifier.
So, I rewound the coils to make 3 equal coils. I busted out the Dremel to move the ignition coil over to let me orient my power coils at 120deg.
At first, I tried a "wye" setup, with the neutral grounded to the stator plate/frame. With this, I had a nice strong 16VAC open-circuit measurement from ground to each phase. Due to the 120deg orientation of the coils, and the 4-pole magnet of the flywheel, this should have given a nice, evenly-spaced 3-phase system. But after connecting the regulator/rectifier, I had only a few volts DC coming out. It could be that I have a bad regulator/rectifier, but I decided to double check some Honda wiring diagrams. Seems like they all either use wye with a floating neutral (not grounded to frame) or delta.
So I disconnected neutral from ground, and checked the AC voltage across two of the three coil leads -- 2VAC :(
Then I tried delta configuration, with a similar result.
Does anyone know what I'm missing? It is something to do with only having 3 coils, each wrapped in the same direction?