Electronique of Lavatube.(picture)

[bidibulle]

Bonjour,
J'en profite pour vous informé avec ces quelques photos de l'electronique du Lavatube avant transformation pour un ami prochainement.

Translation:


Hello,
I take this opportunity to inform you with a few photos of the electronic processing of lavatubes before for a friend soon.

 

[bidibulle]

@bientot.

 

[TomCatt]

bidi. What regulator is being used?

 

[wolfstone5]

Not really much to it! I tried to make out what each component was on the back but the picture isn't clear enough.

 

[bidibulle]

Ce n'est pas un regulateur,c'est un booster de courant.
Pailpoe pourrais nous en dire plus,c'est un "crackitos"(tres fort) en electronique!!!

translate:

This is not a regulator is a boost of power.
Pailpoe could tell us more, it's a "crackitos" (very strong) in electronics!

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[Neon]

looks great ! thanks, I love mine

 

[pailpoe]

Thank you bidibulle.
Boost chip : Texas instrument PS63020 http://www.ti.com/lit/ds/slvs916/slvs916.pdf

 

[pailpoe]

The chip is limited to 3A but very interesting. I think the microchip chip is a numeric potentiometer (to adjust the voltage of the boost).

 

[Dougiestyle]

Ooh! Reverse engineering! I likey! Subscribed.

 

[bidibulle]

Bonjour,ou Bonsoir a tous,
Merci de nous eclairé Pailpoe,
Celui que tu ne vois pas,c'est:
41100
SN 1124
KSP
sur datasheet,c'est un pot numerique(multiple?)!!
@bientot.

Translate:

Hello, or Good evening all,
Thank you to enlighten us Pailpoe,
The one you do not see is:
41100
SN 1124
KSP
on datasheet is a digital pot(multi-pot?)!!
See you soon.

 

[pailpoe]

Yes, it's a digital potentiometer for adjust the output voltage of the boost :
MICROCHIP MCP41100 : DATASHEET
I use the same on my ultibox

 

[theECB]

Very cool. Gosh I wish I could just buy that circuit!

 

[executivul]

The "problem" of the Lavatube is it won't give you an error if you push its limits, it just steps down your voltage and keeps working. Why is that a problem you ask? Because for eg you set 6V on a 1.25 atty/carto, you'd expect to get 28.8Watts (6*6/1.25) but instead the mod is limited at 2 amps maximum, and it will step down its voltage to a working one, you get at most 9W out of it as far as I can tell, with no error displayed as on Provari you'll be a happy placebo vaper.

LE: I've studied the actual chip from TI and that's where the limit is coming from, just look at the Iout/Vout power graphs, it's a little underrated for our purpose.

Sent from my iPad using Tapatalk.

 

[northhar]

The "advantage" of the the lava tube is it could be had for as low as 60$ only the tube.
That leads to this thread where the OP post pictures of the internals and what I see is a decent piece of hardware within a price range unheard before it came to the mass market. I did not expect to see it was made this well, being from China.

Merci bidibulle pour nous informé.
Translation
Thank you bidibulle for posting this.

 

[pailpoe]

For me, this board is very clean and sufficient for a lot of people. I don't know this boost chip before but very interesting for a small boost board with no screen.
Thanks a lot bidibulle...
Some pictures of a provari for comparaison...

 

[jhonutz]

it`s same to be a cheap mod vv this lavatube. Have a big microcontroller for a few function, and have step-up "problem" , with atty under 2 ohm work in linear mod and output voltage drop to 3.6V.

 

[BuzzKill]

Cool thanks for the pix !!!

 

[bidibulle]

Bonjour a tous,
C'est un plaisir que de partager actuellement de nos jours,
Voila les photos d'un ami du Darwin pour completer un peu ce post:

translate:

Hello all,
It is a pleasure now to share today
Here are the pictures of a friend of Darwin to complete just this post:

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@bientot.

 

[WillyB]

The chip is limited to 3A but very interesting. I think the microchip chip is a numeric potentiometer (to adjust the voltage of the boost).

Well it's actually a buck-boost IC. In step down mode 3A, but less when boosting.

 

[Zen~]

How do you get the top cap off the lava tube? Is it threaded on and can it be removed easilly without destroying it?