Looks like the ProVari may have a rival.
- Thread starter C Heise
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Well the site where I saw that says that it will have a 7 option menu. The Provari menu has 6 options. Even if they reverse engineered a Nivel, doesn't necessarily mean they did a good job of it. Also, I agree with the whole "making it look like a Provari" thing. I will hold judgment till I see reviews, but VW or not it, even if it does work well it would never be more than a backup.
lotsoffish:7002538 said:
Something very similar to this is available at happyesmoker.com.. most likely going to order one wednesday.
This is the ugliest PV I have ever seen lol.
I saw a side by side pic with this and a Provari, and this PV is HUGE
Sendt fra min GT-S5360 med Tapatalk2
I saw a side by side pic with this and a Provari, and this PV is HUGE
Sendt fra min GT-S5360 med Tapatalk2
PWM is the best thing that's ever happened to VV mods. Without it, you are limited to the voltage that the battery can produce. It's like a DC dimmer switch. A linear mod can't produce voltages higher than the sum of the battery(s) supplying it. So, a linear regulator can give theoretically give you 0 to 7.4 volts from two 3.7v batteries stacked in series. With a single 3.7v cell, you could get 0 to 3.7v, but only if the battery can produce 3.7v all the time.
PWM and buck circuits allow you to get higher voltages with a single cell voltage source. Without PWM, a tube mod would have to be fat or much longer to accomodate two batteries. Who wants a 2 cell flashlight length Provari or Vmax?
Lets talk about facts. There are a couple of basic kinds of regulator ciruits. There's Linear and Switching regulators. The three implementations are Linear (limited to max supply voltage), Buck (cuts voltage), or Boost (can raise voltage above supply voltage). PWM is used in the latter two. PWM is a type of switching regulator circuit.
http://www.maxim-ic.com/app-notes/index.mvp/id/2031
http://en.wikipedia.org/wiki/Linear_regulator
PWM and buck circuits allow you to get higher voltages with a single cell voltage source. Without PWM, a tube mod would have to be fat or much longer to accomodate two batteries. Who wants a 2 cell flashlight length Provari or Vmax?
Lets talk about facts. There are a couple of basic kinds of regulator ciruits. There's Linear and Switching regulators. The three implementations are Linear (limited to max supply voltage), Buck (cuts voltage), or Boost (can raise voltage above supply voltage). PWM is used in the latter two. PWM is a type of switching regulator circuit.
http://www.maxim-ic.com/app-notes/index.mvp/id/2031
http://en.wikipedia.org/wiki/Linear_regulator
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ProVari's claim to fame, aside from build quality (with parts from Japan, Korea, Taiwan, Malaysia, and China) was that you could set the voltage and get a consistent vape from beginning to end.
You can get that now for $25 from your choice of several PVs.
I would expect that to affect ProVari pricing going forward!
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The Twists are the only device that I can think of that regulates properly for $25.
That may be true this week, but let's wait and see how those new PV's perform that are just being released. Who knows, the VV Kgo might be a Twist killer.
This market is progressing amazingly fast! That is one reason (besides size) that I'm not willing to plop down over $200 on something that may be obsolete in a few months.
I don't go into torch mode and vape in the neighborhood of 4v. My Twist gives me great performance in that range. At this point I just can't justify spending 10 times more. I'm not saying a Twist is as good as a Provari, but it serves my purposes and vaping preference just as well as a Provari would.
I think the whole point is indeed finding a device that meets your personal needs. One size does not fit all! If that were true everyone would be driving the most expensive cars. Determine your budget and needs and buy Somthing. 
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That is the same philosophy I had till one of these Provari Wannabee,s gave up the Ghost whilst on a Tour of the Scottish Highlands
Lesson Learnt Big Time,bought a used Provari in the Classies dont want to find myself in that situation again
Will take a backup and a backup for the backup next time and one will be a purely mechanical mod
I have some Twists and they're great but normally I use the ProVari.
They're the only two devices that I know of that accurately regulate voltage until the end of the battery.
Most of the other Chinese PWM mods maintain charge throughout but because of poor PWM implementation they don't regulate an accurate voltage. Most people probably don't give a damn if the displayed 3 volts is actually closer to 3.7 - as long as they can have a good vape.
Accuracy has never been a huge issue for me, it's reliability that interests me more than anything - my ProVari and my Twists are super reliable. In my experience, lot of the newer Chinese mods tend to be fault monsters.
They're the only two devices that I know of that accurately regulate voltage until the end of the battery.
Most of the other Chinese PWM mods maintain charge throughout but because of poor PWM implementation they don't regulate an accurate voltage. Most people probably don't give a damn if the displayed 3 volts is actually closer to 3.7 - as long as they can have a good vape.
Accuracy has never been a huge issue for me, it's reliability that interests me more than anything - my ProVari and my Twists are super reliable. In my experience, lot of the newer Chinese mods tend to be fault monsters.
Bahiaboy,
That wouldn't be a V1 Vmax you're talking about would it?
I remember you posting on the Vmax thread and then you disappeared.
I really loved my Vmax's but I ended up having major issues with a few that I owned - bought a ProVari and haven't looked back since...
That wouldn't be a V1 Vmax you're talking about would it?
I remember you posting on the Vmax thread and then you disappeared.
I really loved my Vmax's but I ended up having major issues with a few that I owned - bought a ProVari and haven't looked back since...
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These have been around a few months now.
I've had a few of these and they're really good but I had issues with them dying on me.
It's got a burgeoning fan base so maybe I was just unlucky.
I remember when i was in college when we were designing Switched Power Sources to control small motors, valves and stuff and the PWM was always the "control" signal, we never injected the pulses into the load without passing it through an inductor that we actually made and often emitted a very loud noise. Now, that said, i can see the Provari implements the PWM concept correctly and the AccuSet technology (which seems like a Voltage Feedback PID control to me) uses it to provide the "what you set is what you get" plus that others seems to miss by lazy (read cheap) implementations of the PWM (VMax, VV Gripper, etc.).
Last week i wanted a VV Gripper, today i want a Provari, maybe tomorrow a Vmax, this is a matter how much i am prepared to pay for VV now that i already own a couple of Ego Twist which i feel regulate the voltage well until the battery charge goes below the set point (i'm just guessing, i don't know the actual type of battery inside the Twist).
For now i want consistency throughout the charge and the Provari seems like the best option.
My
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Guess I missed the announcement this was coming out! I'm so IN!!!!! Just what I want!!
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