My poorvari mod

[iuseaspork]

I really like this. I've been doing a lot of research on variable regulators and the switching regulators (both boost and buck) have to have a big inductor to go with it (or don't supply enough current). I'm more interrested in size than pure efficiency. batteries are fairly cheap.

 

[rolandpibb]

PoorVari, love it! Reminds me of my homemade LED cheapomizers.

 

[Barryg41]

I would like to find a simple circuit I could use that would indicate a low batt level, I hear it's best to recharge my batts before the protection circuit turns them off. You sure can tell, though, when a batt reaches it's lower limit, suddenly no vape, time to put in fresh batts.

Check out this little meter.

http://www.hobbyking.com/hobbyking/store/__16811__FRS_Failover_Regulator_Switch_5A_Plus.html

Lights and all, even auto switching with low volt for multi bat mods. They discuss the little meter pos n neg views in the review section.

I don't know if it will work, but it looks promising.

 

[YUzazaMY]

You know what ... you can use just about any old laptop power supply .. betcha got at least one of those laying around somewhere. They are generally at least 3 amps, usually more. You can ebay them really cheap. Example:

LAPTOP CHARGER FOR ACER GATEWAY 19V 3.42A AC ADAPTER | eBay

I have finish building this poorvari mod and it work perfectly. Thank to all for a great post and have made a newbies like me mod a Variable Voltage Personal Vaporizer, I can't believe it my self.
I have a playstation 2 power adapter that rating input 100-240V 1.5 A 50/60Hz OUTPUT 8.5V 5.65AMP. Can I use this to power the LM350?
The volt seems good to go but the amps is high and make me worried to use it. Can anyone help me?

 

[BJ43]

Excellent power source. Don't worry about the amps it will only use what it needs and it is best to be over 3 amps. I use 12V 5amp as my source.

 

[YUzazaMY]

Thanks for the quick reply. That is why i love ecf forum..

 

[GTItuner]

So I just finished making my first poorvari and it works and meters out fine from 1.3- 6.6 v but under load it only gets as high as 4.2.V can anyone explain this please

 

[asnider123]

So I just finished making my first poorvari and it works and meters out fine from 1.3- 6.6 v but under load it only gets as high as 4.2.V can anyone explain this please

What is your load? What kind of batts are you using?

 

[GTItuner]

I'm using to two trustfire 14500's and a lr901 with a 510 adapter

 

[asnider123]

I'm using to two trustfire 14500's and a lr901 with a 510 adapter

Well, depending on the resistance of the atty, that may be right. A 1.5 ohm load would reach the 3a limit of the reg at about 4.5v plus or minus. That may be one reason. Try a standard resistance atty and test the voltage. Also, protected batts are protected against over-current, the prot circuit in the batts may be kicking in. AW red batts or some of those LiMh (or whatever they call it) may provide more current.

When I use my Poorvaris, I use CE2 2.6-2.8 ohm tanks, I personally would not use LR with hi-voltage, it would tend to burn the juice (but that's just me I guess). A 2.6 load would allow a 3a max load to reach 2.6*3 or 7.8v before overloading the circuit (assuming hot batteries, of course)

 

[GTItuner]

I just tied different battery's and a 2.1 ohm Atty and still no change ?
I don't get it