evolv patents variable wattage!

[tearose50]

"... Most devices called "variable wattage" do not actually control for a specific wattage. The wattage ratings are based on a known, fixed load; they are basically variable voltage controls. The key feature of the Evolv patent is the active control to a specified wattage, by reading real-world conditions (resistance of the coil and output of the regulator). This is what allows you to change the resistance of the coil and have the power adjust automatically; with most "variable wattage" devices if you changed the resistance of the device being driven, wattage would change and the settings would be inaccurate."

Bingo! And IMHO that's what makes Evolv boards unique and not just the same as most, if not all, of the VV/VW PCB's.

I'm not so sure about of Big tobacco not using it is correct, though. I seem to recall an advertisement about a new never seen before technology chip in a mini that would keep the vape heat consistent connected with one of the brands. I guess they'd never heard of Evolv, or studied the patent application to alter just enough.....

 

[dr g]

"... Most devices called "variable wattage" do not actually control for a specific wattage. The wattage ratings are based on a known, fixed load; they are basically variable voltage controls. The key feature of the Evolv patent is the active control to a specified wattage, by reading real-world conditions (resistance of the coil and output of the regulator). This is what allows you to change the resistance of the coil and have the power adjust automatically; with most "variable wattage" devices if you changed the resistance of the device being driven, wattage would change and the settings would be inaccurate."

Bingo! And IMHO that's what makes Evolv boards unique and not just the same as most, if not all, of the VV/VW PCB's.

I'm not so sure about if Big Tobacco not using it, though. I seem to recall an advert on a brand new never heard of method to keep the vape consistent connected with one of the brands. I guess they'd never heard of Evolv.

Well, VV yes but all current VW boards do this (which is of course the point of VW) and fall under the patented method.

 

[tearose50]

It seems you are contradicting yourself. How do "Most devices called "variable wattage" do not actually control for a specific wattage" and "all current VW boards do this" add up? If it's only the VW boards that this applies to, that's a pretty small non Evolv market and very few are sold in US stores or on-line distributors, with the exception perhaps of the The Chinese attempts at counterfeiting DNA.

As to: "(which is of course the point of VW)" - that's opinion only. There are other advantages to VW as simply an alternative way to set the voltage, despite what the VV enthusiasts like to disagree with. Nevertheless, it is a wonderful feature of Evolv products.

 

[rurwin]

Erm... VW controls watts --- power, not voltage. Some of them might measure resistance continuously and some (iTaste SVD) might measure it once per draw, but they all measure it at least that frequently and adjust the voltage for the configured power. Like it says in the patent. I don't know of any device currently being marketed as VW which depends on a known unique resistance.

 

[dr g]

It seems you are contradicting yourself. How do "Most devices called "variable wattage" do not actually control for a specific wattage" and "all current VW boards do this" add up? If it's only the VW boards that this applies to, that's a pretty small market and very few are sold in US stores on on-line distributors, with the exception perhaps of the The Chinese attempts at counterfeiting DNA.

As to: "(which is of course the point of VW)" - that's opinion only. There are other advantages to VW as simply an alternative way to set the voltage, despite what the VV enthusiasts like to disagree with.

Most devices other than ecigarettes is what I meant, like the aforementioned soldering iron. The Evolv patent applies to ecigarettes which are far and away the most common implementation of actual variable wattage (try searching for something actually VW other than ecigs). Go back to the original post and read that line in context with all of the responses, the first response block is where I set up what "other devices" means.

It is the point of VW to adjust voltage in response to a resistance reading to maintain a set wattage. Advantages are subjective and therefore irrelevant.

 

[caged]

Most devices other than ecigarettes is what I meant, like the aforementioned soldering iron. The Evolv patent applies to ecigarettes which are far and away the most common implementation of actual variable wattage (try searching for something actually VW other than ecigs).

It is the point of VW to adjust voltage in response to a resistance reading to maintain a set wattage. Advantages are subjective and therefore irrelevant.

Try searching for variable power.

 

[dr g]

Try searching for variable power.

Why don't you try and see what you come up with?

 

[tearose50]

Most devices other than ecigarettes is what I meant, like the aforementioned soldering iron. The Evolv patent applies to ecigarettes which are far and away the most common implementation of actual variable wattage (try searching for something actually VW other than ecigs). Go back to the original post and read that line in context with all of the responses, the first response block is where I set up what "other devices" means.

It is the point of VW to adjust voltage in response to a resistance reading to maintain a set wattage. Advantages are subjective and therefore irrelevant.

Thanks for the clarification.

 

[rurwin]

In my day job I control power all the time. The throttle on a combustion engine directly controls power. The control loops around that then use that to control speed, torque or what-have-you.

That is, however, the exception that proves the rule. ;-)

 

[dr g]

In my day job I control power all the time. The throttle on a combustion engine directly controls power. The control loops around that then use that to control speed, torque or what-have-you.

That is, however, the exception that proves the rule. ;-)

please tell me you're a train engineer ...

 

[rurwin]

I program engine test-beds. Car and lorry engines mostly.

 

[caged]

Why don't you try and see what you come up with?

I did. E-cig or PV was not on the list.

 

[dr g]

I did. E-cig or PV was not on the list.

right, because ecigs and PVs are some of the few actual variable WATTAGE devices. If you simply search for variable power, you get mostly variable voltage power supplies.

 

[granolaboy]

Georg Simon Ohm deserves more credit than Evolv.

Evolv is like Thomas Edison...

 

[dr g]

Georg Simon Ohm deserves more credit than Evolv.

Evolv is like Thomas Edison...

Not even close, sorry. By those standards almost nothing should be patented. Pretty lame how many people just want everything to be free to rip off.

 

[dabu406]

This is such an interesting conversation! Good for evolv - that's my thought... I could be wrong, but if it wasn't for them I'd be vaping on VV rather than VW right now. I am not a patent expert, far from it, but from what I remember of my business law class I took in college 20 years ago (ok, I don't actually remember anything from that class), a patent holder is due compensation if someone uses it, and it seems a whole bunch of folks have profited from evolv's innovation/invention over the past couple years. I hope they get what they're due.

 

[p.opus]

ProVape finally enters the variable wattage market with the ProVari 3 only to have Evolv standing there with a patent....Talk about irony.

 

[Coldrake]

However, on the other hand.... I wonder how differently the vaping community as a whole would look if everyone had to spend $100's for every atty and MOD they currently have. How many of us would have quit smoking? How many of us would have said the first purchase, whatever it was, SUCKED and would have never gone further?

That's a fallacy. There are plenty of very inexpensive good quality authentic attys and mods on the market. No one needs to spend hundreds of dollars on a device to switch to vaping.

 

[caged]

ProVape finally enters the variable wattage market with the ProVari 3 only to have Evolv standing there with a patent....Talk about irony.

They could be using the same Evolv chip Innokin is.

 

[David1975]

That's a fallacy. There are plenty of very inexpensive good quality authentic attys and mods on the market. No one needs to spend hundreds of dollars on a device to switch to vaping.

I agree, there are several attys and mods currently on the market that work very well, however most of them use some design or concept that would have been patented if patents were wide spread in e-cigs. Look at the carto, if the original maker patented that design, how many items today might not have ever been made, and how many of those new item lead to other changes? I also don't think the patent for VW is just as their chip does not actually control wattage, it controls voltage to give you a wattage close to that which you want. For instance, take a 1.8ohm coil. You want 14.3 watts, ever notice the voltage stays the same at 5VDC from 13.9watts to 14.4watts. To say you actually control wattage you would need a more accurate delivery of voltage beyond 0.1. This is why VW power supplies are so costly, some control voltage down to 0.0001 volts. Evolve is simply displaying an approximate wattage based on voltage and resistance.... not truly controlling it.