Alternator Tutorial Article - Review Thread

[FireBladerDk]

I have now added more about the rectifier/regulator to my Alternator Tutorial Article http://www.fireblader.dk/i_files/cbr1000rr/mc032.htm explaining about the two different regulator principles - shunt and series type.

I hope you will find this interesting, and as always, I hope to receive feed-back in this review-thread.

  ... Fred

[billy.whizz]

well done Fred, a nice piece of work, explains it so i can understand it. do you know for certain what reg/ rectifier is fitted to the cbf 1000?. if its a shunt one then maybe the way to go is change to the other sort?there are some bikes which carry non shunt regs.what you think?have read an american article on how to do it before.keep up the good work well done.paul,

[Danish]

In explaining how the shuntregulation works you write that shorting in the statorwindings create an extra rotating magnetic field that counteracts with the rotating field from the permanentmagnet. How can the counterfield rotate when the stator is fixed by bolts ? I just learned how you can find north and south. This is high level knowledge about electromagnetism.
The serial regulator is called so because it is connected in serie, so all current passes through (opposite to parallel connection). You write that you have no further info about compufire, but there is a lot :
http://www.posplayr.100megsfree3.com/FH012AA_Charging/SSR_vs_FH012AA.pdf

The article is now starting to get to the problem. It shows in the fact that there now are actual solutions.

Cheers, Danish

[Nuff]

Without getting too in detail Danish, you can create a rotating magnetic field in a fixed winding because it's a polyphase system. If you energise (and de-energise) the coils in specific directions and strengths the fields of each coil add up. If you want more detail I can pm you a very simple explanation of how to create a rotating field in a fixed winding.

[Danish]

Originally Posted by Nuff

Without getting too in detail Danish, you can create a rotating magnetic field in a fixed winding because it's a polyphase system. If you energise (and de-energise) the coils in specific directions and strengths the fields of each coil add up. If you want more detail I can pm you a very simple explanation of how to create a rotating field in a fixed winding.

Yes, thanks that would be nice. I wonīt tell you if I donīt understand

[FireBladerDk]

Hi guis - you are too fast! This what I wrote while you wer posting:

Originally Posted by Danish

... shorting in the statorwindings create an extra rotating magnetic field that counteracts with the rotating field from the permanentmagnet. How can the counterfield rotate when the stator is fixed by bolts ? ...

A good question Danish! A rotating magnetic field from a static stator is possible because the currents flowing in the windings are alternating and shifted in phase relative to eachother. This effectively cretes a rotating field.

Originally Posted by Danish

... info about compufire, but there is a lot :
http://www.posplayr.100megsfree3.com/FH012AA_Charging/SSR_vs_FH012AA.pdf

Thanks - I will have a look into it.

Originally Posted by Danish

... The article is now starting to get to the problem. It shows in the fact that there now are actual solutions. ...

Yes - it seems to be so, but as I write in the article, I have not yet  had any practical experience with theese regulators, but merely report what I have been told by other people, found on the internet and then filtered by my technically and nerdy brain 

Cheers and tanks for your feed-back Danish! ... Fred 

[FireBladerDk]

Originally Posted by billy.whizz

... do you know for certain what reg/ rectifier is fitted to the cbf 1000?. ...

I have been told that all Honda bikes (all Japanese bikes actually) come fitted with shunt type. But I have no absolute knowledge about this. The many fried CBF1000 stators is a strong indication that shunt regulators are fitted though.

[billy.whizz]

have a look at this site?http://eviltwinsbk.com/forumz/index.php?topic=276.0  according to this not all japanese have shunt ones, they are saying the new honda cbr has not

[FireBladerDk]

Originally Posted by billy.whizz

have a look at this site?http://eviltwinsbk.com/forumz/index.php?topic=276.0  according to this not all japanese have shunt ones, they are saying the new honda cbr has not

That is a very interesting link. I have just browsed through the main post and seen in the diagram that 3 diodes and 3 thyristors are used. This i exactly what Erik Schnabel told me he used in his regulator.

[FireBladerDk]

Originally Posted by Nuff

Without getting too in detail Danish, you can create a rotating magnetic field in a fixed winding because it's a polyphase system. If you energise (and de-energise) the coils in specific directions and strengths the fields of each coil add up. If you want more detail I can pm you a very simple explanation of how to create a rotating field in a fixed winding.

Good explanation Nuff !    And if your details are equally tutorial, why not post them here?