[St] alternator principles

[Frederic NIZERY <frederic.nizery@xxxxxxxxxxxxxxxxx>]

Hi all.

After further digging into the heap of web information I finally have an 
good idea of
how a stator on our beasts  get  his voltage regulated.  It's pretty 
scary. It explains also
why I had one coil (phase) burned to the core.
As I read already we can check the rectifiers from outside the 
Rectifier/Regulator
despite it's glued in epoxy. In fact the plus and ground are directly 
the output of the
rectifier arrangement (3+3 diodes). No regulation device in line.

The way it's regulated is one of the 3 coils is SHORTEN if the voltage 
is too high. For people w/
a little knowledge in electronic, it uses commonly a thyristor (or 
Silicon Controlled Rectifier). When the sin
wave get over a threshold, it shorten the coil for the rest of the half 
period. Wow!

That is the less ampere you  drain the more ampere you drain!!! Whatever 
you do you consume and waste this energy.

For more evaluated  regulator the three coils are shorten as for
http://www.electrexworld.co.uk/erol.html#8209x0&&http%3A%252F%252Fwww.google.fr%252Fsearch%3Fhl%3Dfr%26q%3Dstator+regulator%26btnG%3DRecherche+Google%26meta%3D
which also sold by
http://www.electrosport.com/contact/
The three phases are regulated.

The only explanation I can find is that they save an in line regulation 
component that should handle the 30A, as a power transistor.

Has any one among you guys a better explanation  that would stop me from 
building such a more conventional regulation device?

additional info's:

http://www.thegsresources.com/garage/gs_statorfacts.htm   In our case 
it's delta mounting.

and

http://en.allexperts.com/q/Motorcycle-Repair-837/Suzuki-Intruder-1400-charging.htm

Fred



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