Could some on please tell me What Values R1+R2 and the value of the pot I would need to make this go from 3.3v up to 6.5V please
Regards
Matt
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Regards
Matt
Donptal .. hi. Hello all!
I think I may have messed up and need to find out how seriously.
I made another VV based on your circuit. I messed up and left out resistor #2 (the 390 resistor in series with the trim pot). I already had it all hot-glued in before I realized I left that resistor out, wiring only the 1K pot into the circuit. I tested the circuit and it seems to work just fine without the resistor.
My question is: what would happen if the pot were turned down to less than 390 ohms? In other words, what happens if the ADJ goes close to ground? Should I recall this unit (already sent to a friend) or is it safe? I used a multi-turn wire-wound trimmer pot, so there's plenty of precision adjustment available.
Thanks, Alan
I think I may have messed up and need to find out how seriously.
I made another VV based on your circuit. I messed up and left out resistor #2 (the 390 resistor in series with the trim pot). I already had it all hot-glued in before I realized I left that resistor out, wiring only the 1K pot into the circuit. I tested the circuit and it seems to work just fine without the resistor.
My question is: what would happen if the pot were turned down to less than 390 ohms? In other words, what happens if the ADJ goes close to ground? Should I recall this unit (already sent to a friend) or is it safe? I used a multi-turn wire-wound trimmer pot, so there's plenty of precision adjustment available.
Thanks, Alan
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I place that 390ohms resistor if I'm not mistaken to raise my lowest voltage to 3.6 or something but without it, my lowest voltage will be 1.2 something. I have no experience leaving it out in poorvari but I think there's no problem with it. Why don't you try making another one with the same configuration and test it out, if you don't have any problem then there's no need for you to recall. Sorry for a very unexpert advise asnider, because I'm not (electronically). I'm just doing this in a trial and error way.
Thank you Godfather Donptal ... I appreciate it. I have another question regarding the circuit ..
I am making another and it is acting oddly. I checked the pot and resistors, all functioning properly. Nevertheless, no matter what I set my pot to, it always puts out 6.79v .. I even replaced the LM350T, thinking I had over-heated it while soldering. Exactly the same results.
What would cause this to occur? I am stumped.
Alan
I am making another and it is acting oddly. I checked the pot and resistors, all functioning properly. Nevertheless, no matter what I set my pot to, it always puts out 6.79v .. I even replaced the LM350T, thinking I had over-heated it while soldering. Exactly the same results.
What would cause this to occur? I am stumped.
Alan
Anyone have a source for a digital voltmeter display that could work with this mod?
madvapes voltage display should work for this. Battery Voltage Indicator
It's switching regulators, I believe, that don't work with this voltage display. The LM350T is linear.
It's switching regulators, I believe, that don't work with this voltage display. The LM350T is linear.
I put a voltage display on my poorvari but the voltage drop is too drastic, about 1 point something in one point. So placing a voltage meter in this is not that adviseable. But I notice some improvement with the voltage in/out differential at some point:
1. if the battery is full
2. I don't know, but if I'm using LR the voltage difference is not that drastic.
@ Asnider
I also experience that in one point or another and I don't know what causing it not to regulate. A short perhaps, I'm not sure. But by checking double checking it, I somewhat manage to trouble shoot it without learning what the problem is hahaha. Sorry again for a not so professional advice, because I'm not. Are you using this in your energizer mod?
1. if the battery is full
2. I don't know, but if I'm using LR the voltage difference is not that drastic.
@ Asnider
I also experience that in one point or another and I don't know what causing it not to regulate. A short perhaps, I'm not sure. But by checking double checking it, I somewhat manage to trouble shoot it without learning what the problem is hahaha. Sorry again for a not so professional advice, because I'm not. Are you using this in your energizer mod?
Yes indeed, Donptal, it is your circuit in the Energizer .. I was going to change to a PWM due to the high (11-12) voltage, but decided to keep it as-is because it is working great! Love your circuit! Thanks again, Alan
sir how´s the performance of this VV lately? shout-out to all pinoy vapers on PVF..im one of them but it seems like donptal is not registered there..
Ok so I've been trying to build one of these and all I can adjust is from abot 6-7.4 volts...what am I doing wrong lol...I've got 2 pots I can use and a handful of differnt resisters....any ideas?
Nvm I figured things out!-))
Nvm I figured things out!-))
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On that drawing, if one was to put a voltage display on the mod, where would it be connected in all that? LOL
Or where would you solder it to?
Or where would you solder it to?
It would be to the vin out after the regulator to my best knowledge
you two make number 2 and 3 pinoys that are members here now,
i work in alaska and live Lipa,,tho i am not a flip
what he said about the cost of mods there is true !!! provari [case only] runs about 300 bucks USD
i have visited pvf and don't really like it much,,and not too much active participation either
so now you can pull up a chair and chat awhile ,,it all about the vape here
btw..love the size of your vv pv
Lol put it in-between the wire that is from the black and metal squar like Thingy and the atty connector- does that help!-)
Yuzazamy- you can do it, fairly easy all in all and then it will give you confidence to keep molding and explore the molding world!-))
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