Re: brushless

"Ron van Sommeren" <ron.van.sommeren_curly_thingy_hetnet.nl> a écrit dans le 
message de news: 47c8554d$0$25500$ba620dc5@text.nova.planet.nl...
> Bonjour Bernard,
>
>> je suis allé voir:

Hi RON !
>> <http://www.torcman.de/peterslrk/SPEEDY-BL_eng.html#Anker1591256>

Justement , sur ce site , on trouve :
" The phases A, B, C supply the BL motor with the battery voltage, with a 
120 deg. offset,
like it should be with a 3-phase controller. "
C'est bien ce qu'on disait .... :-)

>> Je ne pratique pas les langues étrangères
> Utilisez par example http://www.google.com/language_tools?hl=fr pour 
> traduction automatique.
>
> Prettig weekend ;-) Ron
>
So , despite of my great appreciatiation of your know-how in Brushless 
motors
I've put a remark, some posts before about your answer...

The question was basicaly to ditinguish between brushed "PWM" inverter
and motors and brusless one !
Although , I'm not convinced about the question about frequency variation 
....
It's difficult to generate and switch 3 basics phases and follow a variable
angular speed without modifiing the number of switchs by seconds ; equal
the "frequency" signal , even if there are rough square signals ...:-)
NB : It's not the curent image ,which is more sinusoidal one ( because of
self impedance of wiring ...)
But , I'm not aware of the secrets of this technology ....

Nice to exchange on the forum ,
Bye ,

PatTheFlyer