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Author Topic: Pierre's 170W in 1600W out Looped Very impressive Build continued & moderated  (Read 429873 times)

listener191

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Here is a half bridge driver for N channel MOSFET's up to 60VDC rail.
It has shoot through prevention under voltage lockout.

If you leave both inputs low  both upper and lower MOSFET will be off.

PDIP package only so unless making a PCB you would have to solder on a DIL header.

$5

L192

Fr. Voici un driver demi-pont pour le MOSFET à canal N jusqu'à 60VDC.
Il a tiré à travers la prévention sous le verrouillage de tension.
Si vous laissez les deux entrées faibles, les MOSFET supérieur et inférieur seront désactivés.
Paquet PDIP seulement donc à moins de faire un PCB vous auriez à souder sur un en-tête DIL.
$5.

 
« Last Edit: March 26, 2018, 11:05:22 PM by gotoluc »

listener191

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SiLabs:
Si8230 Half bridge driver operation similar to the Linear 11602 but with higher voltage rating .
Later technology.

SOIC 16 package wide or narrow.

$2.85

Fr. SiLabs:
Si8230 Fonctionnement du driver demi-pont similaire au Linear 11602 mais avec une tension nominale plus élevée. Technologie postérieure
SOIC 16 paquet large ou étroit.  $2.85
« Last Edit: March 26, 2018, 11:08:32 PM by gotoluc »

listener191

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http://www.electronics-lab.com/project/high-current-discrete-half-bridge-based-ir2104-ir2101/

IR2101 based for those that want a PCB overlay already designed.

60V 30A

L192

gotoluc

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Thanks L192 for all these additional options.
But can you help me out with my present build with the questions I PM you hours ago?

Thanks for your help

Luc

listener191

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Hi Gotoluc,

Pretty late here so here is a quick and dirty markup.

5V regulator powers logic side of L298N

You can feed in 35V but the regulator would get very hot so I would use +12V.

The diodes for the transistors are in place on the board.

I have shown connections for Pierres ladder switch arrangement, so the switches are connected in parallel  for a half bridge with a 3.5A rating instead of 2A.

The enable lines switch off both transistors. When enabled the In1 In2 lines are tied together high or low TTL on this input will switch on either the upper or lower transistor pairs.

Regards

L192
 

gotoluc

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Hi Gotoluc,

Pretty late here so here is a quick and dirty markup.

5V regulator powers logic side of L298N

You can feed in 35V but the regulator would get very hot so I would use +12V.

The diodes for the transistors are in place on the board.

I have shown connections for Pierres ladder switch arrangement, so the switches are connected in parallel  for a half bridge with a 3.5A rating instead of 2A.

The enable lines switch off both transistors. When enabled the In1 In2 lines are tied together high or low TTL on this input will switch on either the upper or lower transistor pairs.

Regards

L192

Thanks L192 for your help. No need to make the circuit any cleaner unless you wish to do so,
Is there a way to directly connect an external 5v power source for the boards logic (bypass voltage regulator) so I can use a higher input voltage then 12v?
Is it just a matter of pulling out the "5V Enable"  jumper seen in below picture?
I was planing on going up to the 20 volt rage as maybe a good amount of saturation could be needed.
Also, how many outputs from the Arduino 3560 will be needed to control 30 of L298N?

Thanks

Luc

gotoluc

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Hi everyone,
I've been busy with my build but today I'm opening the topic as I have some questions.
I want to know if I leave the pin jumpers on each (A Enable & B Enable) of the L298N or do I remove them?
Also, has their been a post on how the four control wires of each L298N are grouped and then to which pin numbers the groups are connected on the 2560?
Thanks for your help
Luc

Fr. Salut à tous,
J'ai été occupé avec ma construction mais aujourd'hui j'ouvre le sujet car j'ai quelques questions.
Je veux savoir si je laisse les jumpers de broche sur chacun (A Enable & B Enable) du L298N ou est-ce que je les enlève?
Aussi, a-t-il été un message sur la façon dont les quatre fils de contrôle de chaque L298N sont groupés et ensuite sur quels numéros de broche les groupes sont connectés sur le 2560?
Merci de votre aide
Luc

listener191

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Hi everyone,

I've been busy with my build but today I'm opening the topic as I have some questions.

I want to know if I leave the pin jumpers on each enable of the L298N or do I remove them?
 Also, has their been a post on how the four control wires of each L298N are grouped and then to which pin numbers the groups are connected on the 2560?
 
 Thanks for your help

Luc

gotoluc

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Thanks listener191 for the diagram.
So it's confirmed that the A Enable and B Enable Jumpers are remover.
I also want to use a higher voltage then 12vdc so I'm also going to remove the 5V voltage regulator (5v Enable) Jumper and power all the 30 L298N boards with an external power supply connected to all boards to the 5v connector.
Now all that is left to know is  how the four control wires to each L298N x 30 are grouped and then to which pin numbers the groups are connected on the 2560 to work with the program TK has modified for my 30 slot stator?
This question can be answered by yourself if you wish, TK or slider2732

Thanks
Luc

Fr.  Merci listener191 pour le diagramme.
Il est donc confirmé que les jumpers A Enable et B Enable sont supprimés.
Je veux également utiliser une tension plus élevée que 12Vcc, donc je vais également retirer le (5v Enable) jumper du régulateur de tension 5V et alimenter toutes les 30 cartes L298N avec une alimentation externe connectée a touts les cartes au connecteur 5v.
Maintenant tout ce qui reste à savoir est comment les quatre fils de contrôle à chaque L298N x 30 sont groupés et ensuite à quels numéros de broche les groupes sont connectés sur le 2560 pour travailler avec le programme que TK a modifié pour mon stator à 30 slots?
Cette question peut être répondue par vous-même si vous le souhaitez, TK ou slider2732
Merci
Luc

partzman

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.....
« Last Edit: March 29, 2018, 11:20:17 PM by partzman »

r2fpl

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My version, 36 slots

listener191

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Hi Gotoluc,

Each L298N has two full H bridges. We parallel the H bridge to make a half bridge.You only need 15 boards and you have 30 half bridges.

Regards

L192

T-1000

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Hi guys,

When comparing Pierre's shared program with 1->2 coils activation against real operation and his explanation in videos there is inconsistency about how many coils need to be activated at once and in what order. You can see my post in open thread about what is seen in recordings - http://overunity.com/17609/170-watts-in-1600-watts-out-looped-very-impressive-build-and-video/msg519057/#msg519057

Also the most important part is not in coils switching as Pierre mentioned. My bet is - he managed to make BEMF/interwinding induction recovery back to bank of supercapacitors of most energy spent and is not telling that. Also the Carlos Benitez patent No.17811 have strong relationship in what is causing extra energy there in my opinion.

Cheers!

gotoluc

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Hi Gotoluc,

Each L298N has two full H bridges. We parallel the H bridge to make a half bridge.You only need 18 boards and you have 30 half bridges.

Regards

L192

What
... I don't understand anymore!!!... I posted this video on page 3 of this topic showing 30 boards: https://youtu.be/3-HHaPDOWAM  and no one said anything. Now you're saying I need 18?

Can someone PLEASE make a Full diagram like I have asked for in the video.
I can build stuff but I need everyones help with the Aduino programming to work with the electronic circuit connections
I've just wasted 2 days soldering 30 boards.
I don't understand how 18 boards can control 30 coils?
Luc

Fr.
Quoi ... Je ne comprends plus !!! ... J'ai posté cette vidéo à la page 3 de ce sujet montrant 30 L298N: https://youtu.be/3-HHaPDOWAM  et personne n'a rien dit. Maintenant vous dites que j'ai besoin de 18 ans?
Quelqu'un peut-il S'IL VOUS PLAÎT faire un diagramme complet comme je l'ai demandé dans la vidéo.
Je peux construire des choses mais j'ai besoin que tout le monde aide avec la programmation Aduino pour travailler avec les connexions de circuits électroniques
Je viens de gaspiller 2 jours à souder 30 planches.
Je ne comprends pas comment 18 planches peuvent contrôler 30 bobines?
Luc

listener191

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Hi Gotoluc,

The schematic I sent shows how they are connected.

It true they don't have opto isolation.
I was looking at the specification of the opto isolated board version. However the diodes are either side of any one coil and clamped by the high capacitance of the rail capacitors, so there should be no voltage rise over rail.

I don't know what local transients there may be on the board, that will have to be checked.

I am only planning to run these boards at low voltage, then use the BTS7960 boards to run at 20-35V.

The enable jumpers  have to come off otherwise the outputs are always active.


Regards

L192