SUPER Buzz Pro ???

[BuzzKill]

All this talk and BS about the current limit of the Buzz Pro got me thinking ( not again ! ) so I went thru my Datasheet on the controller chip in the Buzz Pro , IPro , VVPV and looked really closely at it to garner some more info and here it is.

The output is rated at 2.0 amps BUT it will run up to 180% of that before it enters a hiccup mode ( cuts the current on / off ) so it can reach as high as 3.6 amps before it goes into hiccup mode , this is not based on a continuous current draw from what they say on the sheet and it is kind of vague IMO BUT our test show a 2.75 amp load continuously with a 1.5 ohm carto at 4.7 volts at 15 watts. and 3.13 amps .

So I looked up a sister part of it and it has a 3 amp limit with a 200 % hiccup mode cut in , that is 6 amps ! before it hiccups !!

So maybe some special " Super Buzz Pro's " in the works for the 1.25 ohm 5 coil carts LMAO !!!!!

 

[Dalton63841]

Ahhhh... See, now it makes sense to me LOL! You will notice that aside from one question I stayed conveniently out of the other thread. My assumption was that if the current was being throttled, it would create a greater voltage drop under load, which makes sense, basic ohms law.

NOW I see that you are using a chip that can operate at well over capacity, presumably in short bursts, but since the act of vaping only happens about 5 seconds at a time, it suits its use perfectly. Do I have that about right?

BTW, I think a "SUPER BP" would make a lot of people VERY happy.

 

[Kingbtheone]

With the superman logo on it!!!!

 

[doots]

My Buzz Pro has run anything ( atty or carto) I have ever thought to run on it. I can't think of anything it won't run and run well. This pv is a true workhorse when some others I use have failed it still works every time..

 

[4mehealth]

Make a brick with 2 18650's while you're at it.

This is a request thread isn't it?

 

[BuzzKill]

Ahhhh... See, now it makes sense to me LOL! You will notice that aside from one question I stayed conveniently out of the other thread. My assumption was that if the current was being throttled, it would create a greater voltage drop under load, which makes sense, basic ohms law.

NOW I see that you are using a chip that can operate at well over capacity, presumably in short bursts, but since the act of vaping only happens about 5 seconds at a time, it suits its use perfectly. Do I have that about right?

BTW, I think a "SUPER BP" would make a lot of people VERY happy.

Yes you do Dalton , I should have made this very clear from the get go to avoid all of this so it was my fault in the first place , for most people this stuff just makes their head spin so I try to keep it simple but alas it is now public .

 

[BuzzKill]

The problem with higher currents like this design is the battery capacity , you end up with either a very large battery or a quick drain battery so there are draw backs to either design. ( quick drain = low run times , large is well large )

 

[kwcharlie]

Checked my three new BP’s and they are dropping about .4, .2, and .1 volts when a 1.4 ohm DC is screwed in, starting at 5.0 volts with no DC carto. Starting at 5.5 volts they drop .5, .4, and .2 volts so the chip is limiting power more than amps. You do the math, for 1.4 ohms, but don’t expect good answers, ohms change fast in the DC’s as they heat up, and had to use my COV meter to measure voltage with the DC loading, not the most precise meter but will measure voltage while you vape. Also, in the limiting mode, the chip will change as heat builds up in the transistor junctions.
I think the pattern here is important: raise the voltage and the voltage drop goes up so the chip is more power driven than amps but of course it’s limiting the amps by dropping the voltage more when you start at 5.5 volts instead of 5.0 volts.
OK, point is it’s limiting AMPS but looks like the starting point of limiting [and amount] is driven by power demanded. Looks like the BP’s deliver about 0.25 amps more when started at 5.5 volts. With total amps at about 3.4 at 5 volts start point and 3.7 amps when starting at 5.5 volts. The power goes up with the amps too of course but not as much as the amps do IMHO but limited here by interments and loading.
The right way to do this test would a setup that allowed measuring amps too and volts better, and Oh Ya, don’t use anything smaller than #12, at those amps the drop in the wires can be big.
That’s why I wouldn’t trust any of my “total” numbers [especially those amps]; they are all based on the voltage reading of the COV volt meter and with over 3 amps running through those little wires over an inch. I wouldn’t trust any absolute value measured, the pattern is what to look at and the BP looks like more of a Torque (think POWER) Follower than a Current/Amps Follower when at its limit. When it’s not at its limit it is a Speed (think VOLTAGE) Follower for sure.

 

[BuzzKill]

Checked my three new BP’s and they are dropping about .4, .2, and .1 volts when a 1.4 ohm DC is screwed in, starting at 5.0 volts with no DC carto. Starting at 5.5 volts they drop .5, .4, and .2 volts so the chip is limiting power more than amps. You do the math, for 1.4 ohms, but don’t expect good answers, ohms change fast in the DC’s as they heat up, and had to use my COV meter to measure voltage with the DC loading, not the most precise meter but will measure voltage while you vape. Also, in the limiting mode, the chip will change as heat builds up in the transistor junctions.
I think the pattern here is important: raise the voltage and the voltage drop goes up so the chip is more power driven than amps but of course it’s limiting the amps by dropping the voltage more when you start at 5.5 volts instead of 5.0 volts.
OK, point is it’s limiting AMPS but looks like the starting point of limiting [and amount] is driven by power demanded. Looks like the BP’s deliver about 0.25 amps more when started at 5.5 volts. With total amps at about 3.4 at 5 volts start point and 3.7 amps when starting at 5.5 volts. The power goes up with the amps too of course but not as much as the amps do IMHO but limited here by interments and loading.
The right way to do this test would a setup that allowed measuring amps too and volts better, and Oh Ya, don’t use anything smaller than #12, at those amps the drop in the wires can be big.
That’s why I wouldn’t trust any of my “total” numbers [especially those amps]; they are all based on the voltage reading of the COV volt meter and with over 3 amps running through those little wires over an inch. I wouldn’t trust any absolute value measured, the pattern is what to look at and the BP looks like more of a Torque (think POWER) Follower than a Current/Amps Follower when at its limit. When it’s not at its limit it is a Speed (think VOLTAGE) Follower for sure.

Good info Charlie , it is a switching based regulator and they do NOT behave the same as a linear regulator there are lots of things going on. and it can confuse some volt meters in the .01-.05 volt ranges , a typical meter averages the input and the ripple so they do not always read 100% accurate.

 

[kwcharlie]

Especially at those amps.
Do we need more power/amps?
I’m fine with how my BP’s do with DC’s but for the new 1 ohm three coils maybe a “Super BP” has a use but I’m fine with the hiccup threshold at about 4.8 volts for a DC.
Can anyone feel that the BP doesn’t deliver enough power for whatever they are vaping like some other VV’s on the market?

In my world of “followers” that 180% is called percent of over current and is used in conjunction with a TOC [Timed Over Current] that will cut off the device after about 20 seconds contentious 180% or maybe 90 seconds of 160% contentious over current. I say again, has anyone bumped their vaping head on this? Or is this whole discussion about angles on a pin and counting with data published by the devil?

Like hiccup mode Mike, (and it looks like a hiccup on a scope) I may use that when I teach how my drives work.

 

[5cardstud]

Even with the tanks which I tend to vape a little higher I don't go full throttle so I don't need any higher. I never could understand how people vape at 6 volts anyway. I think it's because they need to have something burning to get the puff they're looking for. Might just as well keep smoking. Anyway my passthrough goes up to 11. + volts but I still haven't gone past 5 volts. I think Mike has these PVs engineered perfectly. There probably isn't any more than 5% of the vaping population that vape at 15+ watts anyway.

 

[Rosco]

Do what you want, which as it appears, you have already done a great job doing.

No matter how hard you try Mike - there are those who will never be satisfied.

But I suppose it is hard to limit your imagination, even when you are on Top of the heap.

 

[bmwjen]

I dunno.......my Buzz Pro runs perfect. Even though "amps/volts/current/under load" stuff is nice to be educated about. As long as my Buzz Pro works........I'm a happy vaper! I've run pretty much everything on it, & have never had a problem.

 

[BuzzKill]

I dunno.......my Buzz Pro runs perfect. Even though "amps/volts/current/under load" stuff is nice to be educated about. As long as my Buzz Pro works........I'm a happy vaper! I've run pretty much everything on it, & have never had a problem.

That was the Idea Jen ! simplicity and no fuss.

 

[skipdashu]

Well ya'll sound like I MIGHT be happy when my used BP arrives Monday ;-)

After all the good comments it gets I decided to jump on a used Buzz Pro (#5xx, don't have number in front of me).

I'll throw out a few questions here as ya'll seem to be on top of t his stuff.

1) What is the minimum input voltage for the BP regulator to run (or is it output + Xv)?
2) Any issues running AW 16340 black/chrome protecteds (2C) in it or do I need to find some IMRs?
3) Does anyone use RCR123 LiFePO4s in 'em or is the run time just too short? (regularly or in a pinch?)

Looking forward to giving it a whirl.

Thanx, Skip

 

[BuzzKill]

Well ya'll sound like I MIGHT be happy when my used BP arrives Monday ;-)

After all the good comments it gets I decided to jump on a used Buzz Pro (#5xx, don't have number in front of me).

I'll throw out a few questions here as ya'll seem to be on top of t his stuff.

1) What is the minimum input voltage for the BP regulator to run (or is it output + Xv)?
2) Any issues running AW 16340 black/chrome protecteds (2C) in it or do I need to find some IMRs?
3) Does anyone use RCR123 LiFePO4s in 'em or is the run time just too short? (regularly or in a pinch?)

Looking forward to giving it a whirl.

Thanx, Skip

Hey Skip , How are you ?

1. the IC needs .5 volt across it that is its spec ,
2. Aw should be fine
3. Not so good , reduced run time.