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

[listener192]

FR:
Quelques autres questions non répondues:
- pourquoi 37 transistors? Quel est le rôle du 37 ème ?
- Il semble qu'il y a un ou plusieurs fils supplémentaires connectés directement au stator. Ces fils ne passent pas par l'un des 5 connecteurs verts. A quoi servent-ils ?
- Comme Pierre cache encore un secret es-ce vrai que le programme Arduino publié est celui vraiment utilisé ?

EN:
Some other unanswered questions:
- why 37 transistors? What is the role of the 37th?
- It seems that there is one or more additional wires connected directly to the stator. These wires do not go through one of the 5 green connectors. What are they doing?
- As Pierre still hides a secret is it true that the Arduino program published is the one really used?

Yes, there was a 37 pinMode listed in Pierres original code, so it controlled something, but not a relay (at least not one we can see), as relay boards are fully occupied with slot switches.

My guess would be a PWM controlled semiconductor switch for the DC supply into the switches.

Regards

L192 

[FixedSys]

Update video: https://youtu.be/cpce2mnn5G8

Fantastic build and very interesting. Can your measuring equipment calculate integral of the current waveform? Those figures would be interesting.

[dole]

Pole strength fluctuation, transition and coil shorted:
Yellow:     
*coil connection and polarity, first phase, continues for all (not shown)
*(+1,-5), (+1,+2,-5), (+1,+2,+3,-5) firing sequence, strength and shorted
*Apples for positive and negative connection (negative not shown)
White:   
*(+2,-6), pole movement, next phase (+2,+3,-6),(+2,+3,+4,-6) and everything repeats again
1    2   
2    3
3    4
(Does anybody see how end where counter flux go's? I tried principle on the small DC motor/generator, didn't work good as I had 3 coils rotor only,( 3, 5,.. problem). I will try it with 4 coils rotor)
PS.
Luc, you have everything there so if you see it correct jus reprogram little bit.
(Just like heating/cooling pump :-))

Thanks
d.

[Andy71]

Can Pierre tell us the type of diodes?

[d3x0r]

The deductive powers here are amazing.


There's 36 independantly wound coils.  This gives the experimenter the absolute most control over what gets activated when.
There could roughly be 5 phases with 6 coils each in series... However, the timing on the LEDs of the transistors show that only 3 sets are active at a time a set being 1 or 2 coils on...




There board had 7 transistors across and 5 rows; which is only 35, but there is one toward the upper left that's like #36.


In the first two rows - 7 LEDs across, the LEDs light first going from right to left across the first and third rows.  As third row ends, the right side of row 2 starts.  Row 3 is just 2 LEDs ahead of row one.  But then the end of row 2 is reached and then 3 and 1 start again...


So there's not just 5 phases...


the 4th row starts at the right, goes across to the left and then starts again immediately.  when it gets to the 4th LED to the left, the 5th row starts... and remains offset 2 les...


// this really needs mono font/preformat... it's not  \[code\] ...

Code Select Expand


row 4   . . . . . . .   . . . . . . o  . . . . . o o  . . . . o o .     . . o o . .    . o o . . .
row 5   . . . . . . .   . . . . . . .   . . . . . . .    . . . . . .     . . . . . o    . . . . o o


I really liked andy's animation in the other thread, though it should be made more obvious it's more of a stepping like ....

coil 1,2 on;
coil 1 going off, coil 3 coming on,
coil 2,3 on
coil 2 going off, coil 4 coming on,
coil 3,4 on

etc....

There's a few stutters on the 4th and 5th rows... where it kinda stops...

Kinda like the iron filings moved around in two semi-circles and kinda stopped at the two sides; I thought maybe it was because that was also where the laminated core was ... but it's not quite.