iPV Mini?

[Flt Simulation]

Ok, I am a little confused with this...

How did you measure a Pulse Width Modulation signal with a multimeter? Or is the ipv Mini using another technology?

All those voltage checks were made while in the DC-DC mode.

It's really too bad this device don't have both a Buck and a Boost converter ... The moral here is to just use a coil ohm / watts combination that will require the Mini to output at least 4.1 or above volts all the time since this device has no problem outputting voltages above the batteries charge voltage.

I believe most of the batteries we use will output a max of between 4.0v and 4.1v when fully charged.

 

[MegaVap]

Finally able to get the pic as promised. I just got the Lemo Drop and in combination with the Mini it is one of my best setups to date.

 

[nelsonm64]

i'm really not liking that the IPV Mini despite showing step down voltage is NOT stepping down! I like to build my coils low so when I throw them on a mech its a good vape. but any device I put on my IPV mini from now on will have to be built at a higher ohm I knew I shoulda just went with the SX Mini....

 

[Art Mustel]

All those voltage checks were made while in the DC-DC mode.

It's really too bad this device don't have both a Buck and a Boost converter ... The moral here is to just use a coil ohm / watts combination that will require the Mini to output at least 4.1 or above volts all the time since this device has no problem outputting voltages above the batteries charge voltage.

I believe most of the batteries we use will output a max of between 4.0v and 4.1v when fully charged.

I don''t pretend to argue your finds but please read the following and tell me how is it possible if you are correct (which I don't doubt)

I have a 0.6 ohm topper on it right now. at 25W voltage reads 3.7 volt, at 20w voltage drops to 3.3, at 15W to 2.8, at 10w to 2.3V and at 5w to 1.6 volts. And there is a very noticeable difference between every of those settings to the next. all the above using DC-DC. If you are correct and I am wrong, then what makes it to change its power from 25W to 5W?

 

[Art Mustel]

i'm really not liking that the IPV Mini despite showing step down voltage is NOT stepping down! I like to build my coils low so when I throw them on a mech its a good vape. but any device I put on my IPV mini from now on will have to be built at a higher ohm I knew I shoulda just went with the SX Mini....

I am not sure of what you mean since I am building my coils at 0.5ohms and most are read as 0.5 ohms. A few of them read 4ohms and they still work on it.

 

[nelsonm64]

I don''t pretend to argue your finds but please read the following and tell me how is it possible if you are correct (which I don't doubt)

I have a 0.6 ohm topper on it right now. at 25W voltage reads 3.7 volt, at 20w voltage drops to 3.3, at 15W to 2.8, at 10w to 2.3V and at 5w to 1.6 volts. And there is a very noticeable difference between every of those settings to the next. all the above using DC-DC. If you are correct and I am wrong, then what makes it to change its power from 25W to 5W?

i'm running a 0.6 coil and it vapes exactly the same at 7 watts as it does on 16 watts. mines not stepping down despite the screen saying it is

 

[crxess]

i'm really not liking that the IPV Mini despite showing step down voltage is NOT stepping down! I like to build my coils low so when I throw them on a mech its a good vape. but any device I put on my IPV mini from now on will have to be built at a higher ohm I knew I shoulda just went with the SX Mini....

Really not sure what you are implying. My Magma's are .63ohm and .56ohm builds and I have no problem turning them down the the point of a Cold Vape.
Forget P4U and look at the Actual Board Specs. Even better, build and test.

YiHiEcigar SX130 30W

While I do not have the equipment to properly test output, I can clearly state there is a definite difference in performance of a .5ohm build when you drop the wattage. I tested @ 5w, 12w, 15w, 25w and 30w All settings were noticeably different.

 

[Art Mustel]

i'm running a 0.6 coil and it vapes exactly the same at 7 watts as it does on 16 watts. mines not stepping down despite the screen saying it is

Then yours may have an issue, mine changes very noticeably from one to the next.

 

[Flt Simulation]

I have a 0.6 ohm topper on it right now.

at 25w voltage reads 3.7 volt

at 20w voltage drops to 3.3

at 15W to 2.8

at 10w to 2.3V

at 5w to 1.6 volts.

All these volts you are reading at the various watt settings ... are these voltages something you are reading on the display of your Mini?

If so, you need to get yourself a quality digital multimeter and read the voltage on the screws that attach your coil while the fire button is pushed and the coil is burning.

Reading voltage on the Mini's display screen tells you nothing.

 

[Art Mustel]

All these volts you are reading at the various watt settings ... are these voltages something you are reading on the display of your Mini?

If so, you need to get yourself a quality digital multimeter and read the voltage on the screws that attach your coil while the fire button is pushed and the coil is burning.

Reading voltage on the Mini's display screen tells you nothing.

Besides what you quoted from my post, there is this, which I consider important:

"And there is a very noticeable difference between every of those settings to the next. all the above using DC-DC."

I understand that you already said it tells nothing, my question is why the vape varies from very strong at 25W to very soft at 5w. if there is not a voltage change, what is it?
I just want to understand it.

 

[Flt Simulation]

I just don't know .... all I know that when my Mini is in DC-DC mode, it will never output any voltage below the available battery voltage.

 

[WickedBad]

I have had mine since it came out and I have been using it alot. I am currently setup with a 1.0ohm build running at 20.7w. The voltage is 4.7 and the performance seems like it should.

Using the same 1.0 coil I set it down to where I was 4.1v vaped a bit then set it to 7w and the performance seems exactly the same. Kinda sucks as this is a awesome mod. Mine has been abused and it still looks and performs just as it did day 1. I did make sure I was in dc-dc mode. If it really is that way you would have to have the following...

1.6ohm on a fresh battery will be firing at 11w.
1.8ohm on a fresh battery will be firing at 9.7w
2.0ohm on a fresh battery will be firing at 8.8w

The lowest I can vape with the 1.0 ohm coil is 16.8w (But I run ~20 most of the time)

This really is a great mod and if you can fit in there somewhere I really do recommend.

 

[crxess]

Buck Boost/Down conversion Mystery solved.

1) Without equipment it is impossible to know exactly what is being pumped out. Even minor changes in Wattage can be evident in the Vape. This can be a little misleading.
Remember this:
The Unit can output PWM or DC-DC. The DC-DC is a Feature YIHI put in place per Vapors request. Direct output for better Power delivery to low ohm devices.

Put your favorite .5ohm build on the Mini
Switch the Mini to PWM
Set any memory to 5 watts
Watch this puppy Drop Dead as you attempt to take a draw. I had to bump up to 7w just to get a slight wisp of vapor.(only indication it was even firing - stone cold)
Bumped to 12w - light, mildly warm - much like a cig-a-like
15w - like a decent Natulis/Kayfun would produce
20w - More like an Orchid or single coil RDA
25w - Back in business
30w - started getting really Hot

I have to stand by the Chipset Having Buck/Bust when in PWM Mode and delivering true(or close) DC when in Bypass mode.(DC-DC)

Someone want to check my Testing on theirs?

 

[MegaVap]

Buck Boost/Down conversion Mystery solved.

1) Without equipment it is impossible to know exactly what is being pumped out. Even minor changes in Wattage can be evident in the Vape. This can be a little misleading.
Remember this:
The Unit can output PWM or DC-DC. The DC-DC is a Feature YIHI put in place per Vapors request. Direct output for better Power delivery to low ohm devices.

Put your favorite .5ohm build on the Mini
Switch the Mini to PWM
Set any memory to 5 watts
Watch this puppy Drop Dead as you attempt to take a draw. I had to bump up to 7w just to get a slight wisp of vapor.(only indication it was even firing - stone cold)
Bumped to 12w - light, mildly warm - much like a cig-a-like
15w - like a decent Natulis/Kayfun would produce
20w - More like an Orchid or single coil RDA
25w - Back in business
30w - started getting really Hot

I have to stand by the Chipset Having Buck/Bust when in PWM Mode and delivering true(or close) DC when in Bypass mode.(DC-DC)

Someone want to check my Testing on theirs?

Yes sir, just as I suspected also. It is just like my Z Max when used in PWM mode. Turn it to the lowest wattage setting and it's a very weak vape.
It feels like its bucking (stepping down) but I'm not sure it's actual "buck" since it's in PWM mode and not in DC-DC mode. Can someone tell me if the term "buck" only applies to a DC chipset/signal.

 

[crxess]

Yea, semantics may be off - Buck/reduce/cut or whatever, but it definitely works.

 

[Evi|grin]

I noticed turning on PWM dropped vapor production dramatically at lower watt settings. A huge amount.

 

[cjpeltz]

So if we are vaping sub ohm, should we use PWM mode? Or is DC-DC still better?

 

[crxess]

So if we are vaping sub ohm, should we use PWM mode? Or is DC-DC still better?

Sub-ohm vaping normally entails higher power output so DC-DC is generally more effective for a strong smooth output. As the battery falls off, Regulation kicks in to provide power balance through useable battery life.

Users running higher ohm coil builds, factory heads, cartos will likely benefit from PWM regulation Reducing that power to avoid Hot/Dry vaping.

 

[Art Mustel]

Sub-ohm vaping normally entails higher power output so DC-DC is generally more effective for a strong smooth output. As the battery falls off, Regulation kicks in to provide power balance through useable battery life.

Users running higher ohm coil builds, factory heads, cartos will likely benefit from PWM regulation Reducing that power to avoid Hot/Dry vaping.

Finally it makes sense to me! Thanks a lot crxess,

 

[Patcrack]

Buck Boost/Down conversion Mystery solved.

1) Without equipment it is impossible to know exactly what is being pumped out. Even minor changes in Wattage can be evident in the Vape. This can be a little misleading.
Remember this:
The Unit can output PWM or DC-DC. The DC-DC is a Feature YIHI put in place per Vapors request. Direct output for better Power delivery to low ohm devices.

Put your favorite .5ohm build on the Mini
Switch the Mini to PWM
Set any memory to 5 watts
Watch this puppy Drop Dead as you attempt to take a draw. I had to bump up to 7w just to get a slight wisp of vapor.(only indication it was even firing - stone cold)
Bumped to 12w - light, mildly warm - much like a cig-a-like
15w - like a decent Natulis/Kayfun would produce
20w - More like an Orchid or single coil RDA
25w - Back in business
30w - started getting really Hot

I have to stand by the Chipset Having Buck/Bust when in PWM Mode and delivering true(or close) DC when in Bypass mode.(DC-DC)

Someone want to check my Testing on theirs?

Just keep calm. What we need is coming

Taste Your Juice | NEW IN THE QUEUE – 12/25/14 – THE IPV MINI