The " BUZZ " VariVolt Pv's coming SOON !

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Hyperspace

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5cardstud

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I have to see IF I can justify the Mold costs ( $5-6,000 !!! ) I am looking at a case that is pre-made not as sexy looking but I can get it on the market faster and for less cost.

I really want to make the enclosure I designed But the cost is prohibitive right now.

Bottom feeders have several problems
1. juice leaks back into the bottle and spoils it
2. Exclusive atomizers , you cannot use a standard atty that I know of.
3.possible juice in the electronics

top feeders Cons:
1. no leaking of juice back into the bottle
2. Stock atomizers
3. clean delivery of the juice
4. OUR design delivers 2 drops EVERY time
it also holds 5 ml of juice so it is good for a whole day.
I am looking at a new design that is a single battery 18650 and a boost regulator for 3.6- 5.5 volts variable regulated output. with built in juice feed , a variation on the VVPV :toast:

Sounds excellent but as a carto guy I'll stick with the Buzz. It fits my purpose great. I do like the looks of the WPV though.:):)
 

BuzzKill

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Yes. Regulation doesn't change capacity. If it were PWM regulated it would have a longer runtime (due to effecient regulation) but the buzz has a linear regulator. If you had three setups with identical batteries and identical loads - a single battery, two stacked batteries, and two stacked batteries with a linear regulator - they would all run out at exactly the same time.

If your 16340 mod is outlasting a 14500, it's because the 14500 capacity of the 14500 was probably overrated.

Both the Linear AND PWM regulators are more efficient at higher voltages ( from the spec sheets and designs I have looked at ) some new PWM designs have a power save mode that makes them more efficient ! , the linear regulator is more efficient at higher voltages because you drop less power across the regulator when the output voltage is higher .

When the Buzz is set at 5.0 volts approx. 1.5 volts is dropped across the regulator so with a 3 ohm atomizer there is 1.66 amps flowing so 2.5 watts drops across the reg. and 8.3 watts across the atomizer ( I need to double check these #'s !)

as the voltage is decreased more power is dropped across the reg. and less is delivered to the atomizer so the efficiency goes down.
 

BuzzKill

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Buzz...I just wanna know how you're gonna boost a 3.7v 18650 up to 5.5v? Is there a way to do that? really? and then make it variable to boot? I'll buy one for sure if you can pull that off!!

Oh ya "WE HAVE THE TECHNOLOGY" LMAO !!

Yes it can be done your laptop does it all the time , in fact thats where these circuits come from .

Notcigs has just started development of advanced vaping devices , the future holds all kinds of new stuff !!
 

wolflrv

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That's friggin' cool! I've built computers for 20+ years and even did some time building circuit board and soldering on an assembly line..but I had no idea what I was putting in the boards..I just did the loading from a diagram and parts list. I can solder and mod a box or a piece of copper pipe..but that's about as far as I go.

Glad to know that someone is applying some actual "technology" to e-cigs finally...:)
 

5cardstud

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That's friggin' cool! I've built computers for 20+ years and even did some time building circuit board and soldering on an assembly line..but I had no idea what I was putting in the boards..I just did the loading from a diagram and parts list. I can solder and mod a box or a piece of copper pipe..but that's about as far as I go.

Glad to know that someone is applying some actual "technology" to e-cigs finally...:)

Thats me Wolfcry, I've built them from the chassis up, New Mobo, new processor/s, sound cards, video cards, power supply but just putting things together. I used to have a television/appliance repair business when I was a young guy but that was quite awhile ago.
 

portguy

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Do you like that sand blasted LOOK ? it kind of glitters, a bit more sparkly looking.

# 11 getting worked on tomorrow and sun. ( Freakin making work on the weekend Basterd ! )

Now that you mention it...i compared the pics with the regular ones. I like regular best. I wonder how that sandblasted tubes feel in ones hand. mmmmmmm....i wonder if that would feel like a bike i painted years ago on my own...I could sandblast my ... if i sat on the fuel tank! :laugh:
 

boz

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I figured as much. It's best to stick with AW, Trustfire, and Ultrafire. Those are proven brands. If you want cheap prices you can get Trustfire and Ultrafire at DealExtreme.
Exactly, I spent ages at Candlepower studying up on batteries because we rely on them so much that they become a large part of what we do. The last thing you want is poor quality batteries when you have good quality hardware. Just doesn't make sense to skimp on the power supply.
 

candre23

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Both the Linear AND PWM regulators are more efficient at higher voltages...
This is both true and misleading. If you're measuring efficiency as % of battery output that goes to the load, you are correct. However, if you measure efficiency as the % of extra energy (the voltage above your setpoint) that is wasted, then linear regulators are as inefficient as you can get. Though their design is much more complicated, a linear regulator acts basically like a smart resistor. Any/all voltage above the setpoint is wasted as heat. From the batteries' point of view, you're pulling 7.4V all the time, no matter what the regulator is set to. The reg takes that 7.4V and dumps all of the excess into a heatsink. As far as conversion efficiency, linear regulators are effectively 0% efficient.

PWM regulators work by pulsing the power very quickly. It's not a perfect system (what is?), but for the most part, the batteries get to "rest" during the off portion of the cycle. The conversion efficiency of most PWM circuits is somewhere around 90%. That means that 90% of the energy that you're not using is saved and can be used later.

Think of it like driving a car - to maintain a set speed, the best thing to do is to apply the gas pedal part way. The engine only revs as fast as it has to to maintain velocity. When the engine revs slower, it doesn't use as much fuel. Well a linear reg only revs at one speed: maximum. In order to not go full tilt, you'd have to ride the brakes all the time. The brakes convert all the excess energy that the engine is producing into heat, and keep the car going at a reasonable speed. You can still maintain your desired speed, but your gas mileage would be horrible.

Don't get me wrong, I'm not knocking the buzz for using a linear reg. I just want everybody to understand how these things really work. All the regulated mods currently available use linear regs (or worse, simple resistors) to get down to the desired voltage. It's not efficient, but it gets the job done and it's simple to implement. The only PWM mod on the horizon is the pulse, and that's likely to cost a small fortune due to the relative complexity of designing a PWM circuit from scratch. Sooner or later the Chinese will catch on and we'll have sub-$50 variable PWM mods. But until then, variable linear regs are not a bad substitute.
 

Hyperspace

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Exactly, I spent ages at Candlepower studying up on batteries because we rely on them so much that they become a large part of what we do. The last thing you want is poor quality batteries when you have good quality hardware. Just doesn't make sense to skimp on the power supply.

I agree. I've spent a lot of time reading the Candlepower forum too. They are a wealth of information. Those people are into batteries big time. It amazes me how much time they put into testing all the brands, sizes, and kinds.
 
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