Pierre's 170W in 1600W out Looped Very impressive Build continued & moderated

[gotoluc]

Input 1,2 should be connected to Vcc, input 3,4 to GND.

Are Input 1,2 and 3,4 connected to Vcc and GHD of the Arduino or Vcc and GND of the input power rails?

Each of your coils has about 0.5ohms resistance. We are driving 5 coils in series, so that is about 2.5ohms total per coil.

Sorry but the way I understood Pierre's circuit is, even though all the coils are connected in series they are individually driven, so I don't understand why you wrote "We are driving 5 coils in series"
It would be important we be on the same page before moving forward.

However, we are activating 6 poles with 6 FETs (3 on the high (Vcc) side and 3 on the low (GND) side

Yes, I agree and understood it this way
Thanks for your help and kind regards

Luc

[gotoluc]

why there are 72 relays and not just 36 ?

The way I understand it is, there's 2 relays per coil because, one for each direction the current is to circulate in.

Regards
Luc

[T-1000]

The way I understand it is, there's 2 relays per coil because, one for each direction the current is to circulate in.

Regards
Luc

Please see numbers in frame captures from video:
https://i.imgur.com/pNVrVIV.jpg
https://i.imgur.com/XPcfU3S.jpg
https://i.imgur.com/BEve2jS.png
https://i.imgur.com/SyfQ4oy.png

Cheers!

[listener191]

Are Input 1,2 and 3,4 connected to Vcc and GHD of the Arduino or Vcc and GND of the input power rails?

Sorry but the way I understood Pierre's circuit is, even though all the coils are connected in series they are individually driven, so I don't understand why you wrote "We are driving 5 coils in series"
It would be important we be on the same page before moving forward.

Yes, I agree and understood it this way
Thanks for your help and kind regards

Luc

Hi Gotoluc,

In the case of the 36 slot stator there are 6 coils driven in series. Pierre shows this on his diagram.  From the switch high side feed the current goes through 6 coils in series clockwise and 6 coils anticlockwise. At the end of the 6th coil the low side switch is turned on completing the current flow. This generates an adjacent North and South pole. This is repeated at two more times to createtwo more sets of poles. The three high side switches and 3 low side switches are then all rotated to the next switch positions before the previous set of switches are turned off.

Regards

L192   

[MichelM]

J'espère que ce ne sera pas trop confus. Il s'agit d'une tentative de visualisation des champs magnétiques, laquelle semble mettre en évidence que les bobines, dans 30 rainures / 36, ont leurs lignes de champ en opposition.

On est toujours avec le stator de Pierre avec ses 36 rainures (fentes), et 36 bobines au pas de 6 rainures. Chaque bobine est composée de 6 bobines en série (une couleur pour chacune).

J'ai indiqué une légende sur la gauche de l'image :

- Dans 30 rainures du stator, les 2 bobines qui s'y trouvent ont leurs champs en opposition (répulsion) Nord/Nord ou Sud/Sud ;
- Dans 6 rainures du stator, les 2 bobines on leur lignes de champ en attraction.

On peut estimer que les mêmes répulsions se produisent dans le chignon (où les fils se croisent aux deux bouts du stator).

Au lieu de couvrir 6 rainures, si chaque bobine en couvrait 7, dans l'ensemble du stator les lignes de champ seraient en opposition.