02-01-2013, 12:28 AM
All alternators have a W terminal... Whether it's external or you'll have to pull the back off, but there will be one there...
The W output is the output off the diode bridge before it's rectified from what I can see... So you're getting pure AC off the back of the alternator, rather than the rectified DC output...
![[Image: W-terminal.jpg]](http://i197.photobucket.com/albums/aa85/vwaldon/W-terminal.jpg)
You then need to know the drive ratio of the alternator and I think how many pole the alternator is - I'll think harder about it tomorrow when it's not half midnight...
The W output is the output off the diode bridge before it's rectified from what I can see... So you're getting pure AC off the back of the alternator, rather than the rectified DC output...
![[Image: W-terminal.jpg]](http://i197.photobucket.com/albums/aa85/vwaldon/W-terminal.jpg)
You then need to know the drive ratio of the alternator and I think how many pole the alternator is - I'll think harder about it tomorrow when it's not half midnight...