My newest mod box VV
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Right on! Looks good, r u gunna do a step by step or atleast a parts list for us?
hy
For this mod i used step down regulator LM2596 ADJ, DS1869-10 digital potentiometer, and an 5V regulator for DS1869.
Push-button, digital voltmeter it`s from China.On ebay you find all parts.
For this mod i used step down regulator LM2596 ADJ, DS1869-10 digital potentiometer, and an 5V regulator for DS1869.
Push-button, digital voltmeter it`s from China.On ebay you find all parts.
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about tube mod.Mechanical work was made today.Next i will make electronics stuff.This tube will be with battery charger PCB for two li-ion, and 9V/1A from an external power supply.
It`s a hard work on copper tube
And the schematics
Attachments
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Sure seems like a lot of work for a LM2596 ADJ chip. You'll be hard pressed to get the 3A max out of it and the efficiency is pretty low.
That's from the datasheet, the red line I added corresponds to voltages we use. At about ~75% it's pretty much in the linear regulator class.
That's from the datasheet, the red line I added corresponds to voltages we use. At about ~75% it's pretty much in the linear regulator class.
anyway work`s grate..It`s possible tu use other IC but this lm2596 have a good performance at a lowest cost
uff i forgot to write on the schematic electrolithic capacitors to IN and OUT, works fine with 100uF SMD at IN and 220 uF SMD at OUT
uff i forgot to write on the schematic electrolithic capacitors to IN and OUT
, works fine with 100uF SMD at IN and 220 uF SMD at OUT
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I got a few 2596 modules from eBay that I'll be using. I'm not a heavy vaper, 2-3mL/day; so as long as I have a set of batts in reserve, I think they'll work out.
Sure seems like a lot of work for a LM2596 ADJ chip. You'll be hard pressed to get the 3A max out of it and the efficiency is pretty low.
That's from the datasheet, the red line I added corresponds to voltages we use. At about ~75% it's pretty much in the linear regulator class.
From your chart I can assume that since I use 12 to 15v input, at that voltage I am getting 90% efficiency.
Input voltage is listed at the bottom, graph lines are for output voltage at 3A load. You'd be lucky to get 81%.
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I very seldom use batteries so it really doesn't matter. The LM2596 works great in my VV PTs and up to now have been indestructible even with occasional shorted SS wicks. Worth every penny I paid for the 6 I have.
@BJ43 it`s true..this LM2596 have shortcircuit protection, overtemperature protection..it`s very hard to damage that IC.
until now i made a lot of mod box in 3xAA box with this and work very good, and is a cheap IC aprox 1 $ for 1 pc.Work well with 1.25 carto
until now i made a lot of mod box in 3xAA box with this and work very good, and is a cheap IC aprox 1 $ for 1 pc.Work well with 1.25 carto
From Ebay 1pc 18650 Battery Case 2 x Parallel Connection DIY Case | eBay
China stuff
The part of enclosure, where i put 510 connector is fragile need to be doubled with some other plastic or metal part
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Awesome tube J!! 
I've been vaping on my ACDC mod for a few weeks now. This mod is using an LM2596 step-down module purchased on eBay. It's been working great. I run from an AC adapter source (for PT functionality) or 2 14500 Trustfires. I have been vaping in the 4.5V +/-0.3V range using a 3.2ohm clearo. I've vaped all day (2-3mL) just using the 14500 batts with no problem. Personally 6-8 watts vaping is my range.
Just an a FYI on the common 'It needs to do 3A' comments:
- To get 3A at 3.7V you would need a 1.2ohm atty/carto, which gives 11watts - doable I guess; but starting to get out of the average vapers range in my opinion.
- 4.5V w/1.5ohm give 3A at 13.5 watts - now, in my opinion, that's really getting too high.
- 5V w/1.7ohm gives 3A at 15 watts - is anyone regularly vaping LR at 5V? I'm sure there are.
- 6V w/2ohm gives 3A at 18 watts - if anyone regularly vapes here, they just gotta be showin' off (j/k)
I've been vaping on my ACDC mod for a few weeks now. This mod is using an LM2596 step-down module purchased on eBay. It's been working great. I run from an AC adapter source (for PT functionality) or 2 14500 Trustfires. I have been vaping in the 4.5V +/-0.3V range using a 3.2ohm clearo. I've vaped all day (2-3mL) just using the 14500 batts with no problem. Personally 6-8 watts vaping is my range.
Just an a FYI on the common 'It needs to do 3A' comments:
- To get 3A at 3.7V you would need a 1.2ohm atty/carto, which gives 11watts - doable I guess; but starting to get out of the average vapers range in my opinion.
- 4.5V w/1.5ohm give 3A at 13.5 watts - now, in my opinion, that's really getting too high.
- 5V w/1.7ohm gives 3A at 15 watts - is anyone regularly vaping LR at 5V? I'm sure there are.
- 6V w/2ohm gives 3A at 18 watts - if anyone regularly vapes here, they just gotta be showin' off (j/k)
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