Evolv DNA Forum
Sign up Calendar Latest Topics
 
 
 


Reply
  Author   Comment   Page 1 of 3      1   2   3   Next
seti5

Junior Member
Registered:
Posts: 15
Reply with quote  #1 

I wonder if it's a typographic error in the specification sheet or really Evolv has reduced its quality and efficiency of the chip is only 85% .
It is surprising because Evolv indicates an efficiency of 97 % in its DNA200 chip.
In addition, the mod ( HCigar VT75 ) literally eats batteries and have tried VTC4 Sony , Sony VTC5A , LG HG2 and ( in this case is logical) LG HB6

further more heated than any of my other mods
VapingBad

Avatar / Picture

Administrator
Registered:
Posts: 2,449
Reply with quote  #2 
The DNA 200 can be efficient because it only reduces voltage (buck regulation), the 75 also steps up voltage (boost regulation) so a DNA 40 would be a better comparison.  The DNA 40 spec quotes efficiency as 92%, still better than the 75, the much greater power handling capability is likely why the 75 is less efficient. 
__________________
• I am not employed by nor do I represent Evolv Inc.  All opinions are my own, they are just opinion not fact and can be wrong •

Latest versions of EScribe: DNA 200/250DNA 75
Common problems
seti5

Junior Member
Registered:
Posts: 15
Reply with quote  #3 
It's a good excuse, but Joyetech or Yihi chips has a efficiency factor so low?
VapingBad

Avatar / Picture

Administrator
Registered:
Posts: 2,449
Reply with quote  #4 
They are not in the same league as far as output and vape quality is concerned IMO, we all buy for different reasons, but I'll take vape quality over a few percent efficiency any day.

I didn't find the battery life better on an Evic Mini than a DNA 75, but vape quality was chalk and cheese.  Similarly I just don't rate the YiHi/IPV boards because of the output, the temp mod output is pulsed with no temp limited preheat and they don't even do real time power regulation that Evolv have had on everything they have released.

__________________
• I am not employed by nor do I represent Evolv Inc.  All opinions are my own, they are just opinion not fact and can be wrong •

Latest versions of EScribe: DNA 200/250DNA 75
Common problems
seti5

Junior Member
Registered:
Posts: 15
Reply with quote  #5 

Yes. I love theories, and is a topic already known that playing in different leagues. Evolv is expected to be above the plebs but this does not seem to prove anything.
Yes. The same battery, the same power, the same ato, lasts much more in my VTC Mini or my IPV D2.
And that would be seen without an oscilloscope front, only by mouth.

My DNA200 if it does what is expected of him.

txmonkey214

Avatar / Picture

Senior Member
Registered:
Posts: 142
Reply with quote  #6 
It's all very simple. They do far, far less than DNA chipsets, so they use less energy. How are they more efficient, if they do less work? You can't measure work in hours, only. You have to consider productivity. And Evolv chips are far more productive than anything made in Asia. If you want quality Asian electronics, you have to buy from Japan. Look at the quality of electronics in Chinese and Korean electric guitars. The potentiometers, wiring, capacitors, resistors (if they even have them) and most importantly, the pickups, are all inferior to Japanese. In fact, the pickups in Chinese made guitars are worthless. They have HUGE ferrite magnets to make up for the fact the their coils are crap copper alloy, with 1/4 of the windings found in American made pickups.
Why are you even thinking of comparing Chinese junk to American products?
seti5

Junior Member
Registered:
Posts: 15
Reply with quote  #7 

They remain words to the wind to justify a botched chip.
Also apply that Asian contempt for Yihi, SX350x (1x18650) and SX450 chips (2x18650)?

Modbustersecig

Avatar / Picture

Member
Registered:
Posts: 73
Reply with quote  #8 
Quote:
Originally Posted by seti5

They remain words to the wind to justify a botched chip.
Also apply that Asian contempt for Yihi, SX350x (1x18650) and SX450 chips (2x18650)?

I believe it'sll in what works for you if I want temperature control . being able to see in real time what my coil is doing i personally along with few others go for the DNA chip now if I want slam power can be beat to death and keep on ticking the chip known as a rapture original made by Honeywell for NASA right here in my home town clone by guess who adopted for vapors is one tuff board and my experience all the rest chuck in a bag together shake it dump it out take your pick that's just my opinion

__________________
Any one seen the fire extinguisher I don't believe that's vapor
txmonkey214

Avatar / Picture

Senior Member
Registered:
Posts: 142
Reply with quote  #9 
Comparing a Yihi chip to a DNA chip is like comparing a Commodore 64 to an XBox One. How much are you being paid by Yihi? Do you usually just post hyperbolic reviews of their products for money? Is it more lucrative to Troll on evolv's forum? Don't deny it. Let me know the rates.
retird

Avatar / Picture

Administrator
Registered:
Posts: 1,187
Reply with quote  #10 
I really see no botched chip......  Evolv seems to provide accurate spec's on efficiency variances between "buck" (97%) and "boost" (85%) technology.  Looking at the spec sheets of some China chips I see that the efficiency ratings of "buck", "boost", and "buck-boost" are identical (93%).... 

I am inclined to question the validity of the China spec sheets, so maybe someone can answer my questions.

My questions are: ..... How is it possible to have identical efficiency no matter what the technology employed with China chips?  Could the 93% efficiency rating be only the average of efficiency over all technologies (buck, boost, and buck-boost)?   

__________________
I am not an employee of and do not represent Evolv Inc.  My opinions are just that and are not meant to be fact or even correct.

Wayneo

Senior Member
Registered:
Posts: 296
Reply with quote  #11 
Quote:
Originally Posted by txmonkey214
Why are you even thinking of comparing Chinese junk to American products?
Amen brother.

__________________
My old tired eyes don't look at skewed, moire filled cell phone photos. Printscreen - Sniping tool or [ALT]+[PRT SCN], open MSPaint and paste [CTRL]+[V]
txmonkey214

Avatar / Picture

Senior Member
Registered:
Posts: 142
Reply with quote  #12 
Quote:
They remain words to the wind to justify a botched chip.
Also apply that Asian contempt for Yihi, SX350x (1x18650) and SX450 chips (2x18650)?


Not a contempt for Asian products. Please look at the high praise I give to JAPANESE electronics. They are very good.
Chinese electronics, however, are inferior, due to a combination of technological deficiencies, as well as their knack for shaving production costs, through the unscrupulous, and undeclared use of inferior materials. Why should I buy Chinese, when you can't trust the manufacturers to deliver what is promised? I wouldn't buy e-juice from a Chinese source, either. Same reason.
seti5

Junior Member
Registered:
Posts: 15
Reply with quote  #13 
This was supposed to were a couple of questions that seem to concern more than one, on the efficiency of DNA75 and why literally eats batteries.
Only that.
I do not know what to do disparaging comparisons , but thereby generalize about a country of 1,400 million people , it is not the same as the notion that Americans are uncultured few who do not know where is Europe ?


BillW50

Avatar / Picture

Senior Member
Registered:
Posts: 754
Reply with quote  #14 
Quote:
Originally Posted by seti5
This was supposed to were a couple of questions that seem to concern more than one, on the efficiency of DNA75 and why literally eats batteries.
Only that.

I don't own any DNA75 mods, but I have a lot of DNA200 mods. And I get about 8ml of vape per Samsung 25R. And what I hear by others, they are getting the same 8ml per battery. Why are you getting less? My VT133 (two cell) vapes 16ml worth and my three cell DNA200 mods are vaping about 24ml per charge. Now contrast this with my two RX200 that only vapes 13ml tops per three cells.

Quote:
Originally Posted by seti5
I do not know what to do disparaging comparisons , but thereby generalize about a country of 1,400 million people , it is not the same as the notion that Americans are uncultured few who do not know where is Europe ?

It is true that there are a larger percentage of Americans like that than most other countries. Although I blame it more on the mainstream media and the educational system. Both of them like to keep Americans in the dark. But there are other sources thank goodness. [biggrin]
seti5

Junior Member
Registered:
Posts: 15
Reply with quote  #15 
My DNA75 is HCigar VT75. 
I need to put the 26650 , the 18650 ( HG2 LG , Sony VTC5A ) not even two deposits 50w With the 26650 hard the same as my SX M with a 18650
Previous Topic | Next Topic
Print
Reply

Quick Navigation:

Easily create a Forum Website with Website Toolbox.