gfxgfx
 
Please login or register.

Login with username, password and session length
logo
 
gfx gfx
gfx
19694 Posts in 1260 Topics by 5033 Members - Latest Member: jackiehinchey November 18, 2017, 11:34:25 PM
*
gfx* Home | Help | Login | Register | gfx
gfx
Breaktru Forum  |  eCigarette Forum  |  Modding  |  Topic: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
gfx
gfxgfx
 

Author Topic: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...  (Read 205437 times)

0 Members and 6 Guests are viewing this topic.

Offline Mandro

  • Super Member
  • *****
  • Joined: Jun 2013
  • Location: Tamworth
  • Posts: 165
  • Karma: +26/-0
  • Gender: Male
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #150 on: March 11, 2014, 05:20:56 PM »

I am not sure if this was sorted but here's Mamu's quotes on that...

I've not got around to to testing it properly but as I only ever go as high as 4.5v I used a 240ohm resistor(that's what I had to hand) instead of a 220ohm one. With a quick test (unloaded) with a voltmeter, I'm getting 5.53v without using the enable pin.

Offline mamu

  • PV Master
  • *******
  • Joined: Dec 2013
  • Location: IN
  • Posts: 476
  • Karma: +70/-3
  • Gender: Female
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #151 on: March 20, 2014, 01:42:42 PM »
I have tested both the smd P-FET that Craig recommends and the leaded P-FET sphearion is using.  There is no adverse effect on the input/output from the converter or voltage loss from either one - both do an excellent job of protecting the batts and circuitry for reverse polarity. 

Craig's is the better choice and has the lower RDS(on), but if you have trouble with soldering smd the leaded one will be a good substitute and is much easier to work with.

Here are the specs for each:
Si7157DP (smd)
Drain to Source Voltage (Vdss) - 20V
Current - Continuous Drain (Id) @ 25°C - 46.5A (Ta)
Rds On (Max) @ Id, Vgs - 1.6 mOhm @ 25A, 10V
Vgs(th) (Max) @ Id - 1.4V @ 250µA
Gate Charge (Qg) @ Vgs - 625nC @ 10V
Input Capacitance (Ciss) @ Vds - 22000pF @ 10V
Power - Max - 6.25W


SUP75P03-07-E3 (leaded)
Drain to Source Voltage (Vdss) - 30V
Current - Continuous Drain (Id) @ 25°C - 75A (Tc)
Rds On (Max) @ Id, Vgs - 7 mOhm @ 30A, 10V
Vgs(th) (Max) @ Id - 3V @ 250µA
Gate Charge (Qg) @ Vgs - 240nC @ 10V
Input Capacitance (Ciss) @ Vds - 9000pF @ 25V
Power - Max - 3.75W
Mounting Type - Through Hole

Offline Madmanmacguyver

  • Full Member
  • ***
  • Joined: Mar 2012
  • Location: Dallas Texas
  • Posts: 38
  • Karma: +11/-0
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #152 on: March 25, 2014, 01:49:15 PM »
NICE one Mamu...As always you build some WONDERFUL toys  :thumbsup: .Take a look at mine.

Look forward to seeing your next build.

Offline whoi

  • Full Member
  • ***
  • Joined: Feb 2014
  • Location: United States
  • Posts: 28
  • Karma: +4/-0
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #153 on: March 26, 2014, 04:41:58 PM »
Just to be clear, the diode is for low vin protection correct?

That was  a dumb question after looking at the data sheet.

I got a 6v diode (per the diagram) but the spec sheet says max 5.5v. Is that going to be a problem?

nevermind, I got it figured out lol
« Last Edit: March 27, 2014, 09:04:12 PM by whoi »

Offline Iamthebadass

  • Full Member
  • ***
  • Joined: Feb 2014
  • Posts: 36
  • Karma: +2/-0
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #154 on: April 05, 2014, 01:44:03 AM »
Alright guys, having trouble with one f these. I am building one for a friend, and I have built ~10 previously.

All wired up, fires for a second and then sort of crackles. It'll turn on and off and crackle in between.

I tested for V starve. When fired it drops to 7.9 but that should be fine.

It's got me scratching my head because I have built around 10 this exact same way.

Help me out?

Offline DireHavok

  • Full Member
  • ***
  • Joined: Apr 2014
  • Location: United States
  • Posts: 29
  • Karma: +4/-0
  • Gender: Male
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #155 on: April 14, 2014, 05:38:49 PM »
Is this the correct zener to use there were so many just didn't know.                                                                                                         


http://www.digikey.com/product-detail/en/1N5339B-TP/1N5339BTPMSCT-ND/1114281

Offline mamu

  • PV Master
  • *******
  • Joined: Dec 2013
  • Location: IN
  • Posts: 476
  • Karma: +70/-3
  • Gender: Female
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #156 on: April 14, 2014, 06:12:05 PM »
That's kind of expensive for a zener.  Radio Shack has them too, and those are uber expensive, but does save on shipping cost.

Here's the one I use: http://www.mouser.com/search/ProductDetail.aspx?qs=WLTup5mM6hggalH74%252bUKpQ%3D%3D

Alright guys, having trouble with one f these. I am building one for a friend, and I have built ~10 previously.

All wired up, fires for a second and then sort of crackles. It'll turn on and off and crackle in between.

I tested for V starve. When fired it drops to 7.9 but that should be fine.

It's got me scratching my head because I have built around 10 this exact same way.

Help me out?

Did you get this figured out, Iamthebadass?  It's a new one on me so not sure what's up either unless it's a bad board or a solder connection.

Offline mamu

  • PV Master
  • *******
  • Joined: Dec 2013
  • Location: IN
  • Posts: 476
  • Karma: +70/-3
  • Gender: Female
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #157 on: April 14, 2014, 06:24:30 PM »
Wanted to mention I found this interesting.

I'm wiring the Raptor for passthru using a 12V 10A power brick.  When I connected the power brick the board started auto firing.  That was with the 7.5K ohm pull-down resister.  I had to go down to a 4.7K ohm resister to stop the auto firing.

I haven't searched yet why going from an 8.4V power source to a 12V power source would do this, maybe it has something to do with the current, but with the fluky breadboards I've had lately I'm going to double-check this on another breadboard just to make sure.  :yes"

And on a side note, the 4.7K ohm resister still prevents auto-firing when using 2x 18650 batts in series too.

Offline Madmanmacguyver

  • Full Member
  • ***
  • Joined: Mar 2012
  • Location: Dallas Texas
  • Posts: 38
  • Karma: +11/-0
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #158 on: April 16, 2014, 01:45:23 PM »
Anyone know a distributor where the Raptor 20A is in stock...

Offline mamu

  • PV Master
  • *******
  • Joined: Dec 2013
  • Location: IN
  • Posts: 476
  • Karma: +70/-3
  • Gender: Female

Offline DireHavok

  • Full Member
  • ***
  • Joined: Apr 2014
  • Location: United States
  • Posts: 29
  • Karma: +4/-0
  • Gender: Male
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #160 on: April 24, 2014, 08:02:15 PM »
are you also using 22awg for fire switch?....and ***update*** aliexpress is OOS on raptor

Offline Jashe123

  • Full Member
  • ***
  • Joined: Apr 2014
  • Location: Pasadena MD.
  • Posts: 35
  • Karma: +3/-0
  • Gender: Male
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #161 on: April 27, 2014, 09:30:10 PM »
Anyone know where I can get one of these chips I'm only looking for one if someone has one extra for sale please let me know thanks all!

Offline DireHavok

  • Full Member
  • ***
  • Joined: Apr 2014
  • Location: United States
  • Posts: 29
  • Karma: +4/-0
  • Gender: Male
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #162 on: April 27, 2014, 11:30:34 PM »
all sources now are oos. most are backordered til july..I just got an email from a vender stating they have a prototype 120watt vv for sale @ $250 so I'm guessing ALOT of modders are snatching em up

Offline Madmanmacguyver

  • Full Member
  • ***
  • Joined: Mar 2012
  • Location: Dallas Texas
  • Posts: 38
  • Karma: +11/-0
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #163 on: May 02, 2014, 12:11:04 PM »
I've been looking everywhere...I need a few for testing....no such luck

Offline Madmanmacguyver

  • Full Member
  • ***
  • Joined: Mar 2012
  • Location: Dallas Texas
  • Posts: 38
  • Karma: +11/-0
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #164 on: May 11, 2014, 07:20:29 PM »
got 2 for testing from a shop interested in my work...Something pretty coming soon...  8)

Online Breaktru

  • Administrator
  • PV Master
  • *****
  • Joined: Nov 2008
  • Location: NY
  • Posts: 3299
  • Karma: +784/-4
  • Gender: Male
  • PLEASE participate in this forum
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #165 on: May 11, 2014, 08:31:01 PM »
got 2 for testing from a shop interested in my work...Something pretty coming soon...  8)


Nice. We'll be waiting to see it

Offline DireHavok

  • Full Member
  • ***
  • Joined: Apr 2014
  • Location: United States
  • Posts: 29
  • Karma: +4/-0
  • Gender: Male
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #166 on: May 14, 2014, 05:44:26 PM »
after looking at schematic does the 2 caps wire in series to pin 4 & 7 (counting from left) or paralell to 4 & 7? and if this is for myself there would be no need for p-fet and led correct just wire in fuse protection.

**edit**
I think I found answer in page 1 to wire in paralell...my other question considering min input is 4.5 it can only be powered by 2-18650' in series for 7.4 or will it work in parallel @3.7 has anyone wired it that way to see if it fires
« Last Edit: May 14, 2014, 05:59:29 PM by DireHavok »

Offline DireHavok

  • Full Member
  • ***
  • Joined: Apr 2014
  • Location: United States
  • Posts: 29
  • Karma: +4/-0
  • Gender: Male
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #167 on: May 14, 2014, 05:45:41 PM »
GE just sent me 2 free samples and I'm itching to build. just want to do it safely and not injure the chip as they are hard to come by

Offline mamu

  • PV Master
  • *******
  • Joined: Dec 2013
  • Location: IN
  • Posts: 476
  • Karma: +70/-3
  • Gender: Female
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #168 on: May 14, 2014, 06:47:48 PM »
after looking at schematic does the 2 caps wire in series to pin 4 & 7 (counting from left) or paralell to 4 & 7? and if this is for myself there would be no need for p-fet and led correct just wire in fuse protection.

**edit**
I think I found answer in page 1 to wire in paralell...my other question considering min input is 4.5 it can only be powered by 2-18650' in series for 7.4 or will it work in parallel @3.7 has anyone wired it that way to see if it fires

Yes - caps and fuses are in parallel.

The Raptor is a buck converter - needs a higher input voltage to step down the output voltage.  Buck converters require ~ 1v (it varies depending on the converter some require as much as 2v or so) higher input to output - meaning output needs to be around 1v less than input.

No one vapes at <3v, so 3.7v input is not feasible, plus you're not going to get 4.5v (min input for the Raptor) from an 18650 batt.

Offline DireHavok

  • Full Member
  • ***
  • Joined: Apr 2014
  • Location: United States
  • Posts: 29
  • Karma: +4/-0
  • Gender: Male
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #169 on: May 14, 2014, 08:23:54 PM »
Yes - caps and fuses are in parallel.

The Raptor is a buck converter - needs a higher input voltage to step down the output voltage.  Buck converters require ~ 1v (it varies depending on the converter some require as much as 2v or so) higher input to output - meaning output needs to be around 1v less than input.

No one vapes at <3v, so 3.7v input is not feasible, plus you're not going to get 4.5v (min input for the Raptor) from an 18650 batt.

Thank-you Mamu

Offline Jashe123

  • Full Member
  • ***
  • Joined: Apr 2014
  • Location: Pasadena MD.
  • Posts: 35
  • Karma: +3/-0
  • Gender: Male
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #170 on: May 15, 2014, 03:52:51 PM »
Can you use a 500MW Zener diode or does it have to be bigger?

Offline CraigHB

  • PV Master
  • *******
  • Joined: Nov 2011
  • Location: Reno, Nevada
  • Posts: 2023
  • Karma: +243/-1
  • Gender: Male
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #171 on: May 16, 2014, 02:08:07 PM »
You can calculate power consumption on the Zener pretty easily.  For example, with a maximal battery voltage of 8.4V and a 6V Zener you have a 2.4V drop on the resistor.  Current flow is 2.4V divided by the resistance which  is I believe is 4.7k in this case.  So that's a current of about 500uA.  Power consumption is the voltage drop of the Zener times the current which is 6V times 500 uA for 3mW.  So you can see that power consumption on the Zener is negligible.  You can use any Zener really, even one as low as 100mW.

Offline Jashe123

  • Full Member
  • ***
  • Joined: Apr 2014
  • Location: Pasadena MD.
  • Posts: 35
  • Karma: +3/-0
  • Gender: Male
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #172 on: May 16, 2014, 02:58:00 PM »
Wow you just hurt my brain a little bit. Lol. Thank you so much for getting back to me though

Offline CraigHB

  • PV Master
  • *******
  • Joined: Nov 2011
  • Location: Reno, Nevada
  • Posts: 2023
  • Karma: +243/-1
  • Gender: Male
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #173 on: May 16, 2014, 03:30:42 PM »
Sorry, that was the long answer :)

Offline Jashe123

  • Full Member
  • ***
  • Joined: Apr 2014
  • Location: Pasadena MD.
  • Posts: 35
  • Karma: +3/-0
  • Gender: Male
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #174 on: May 16, 2014, 03:43:23 PM »
Thank you for the long answer it was actually very informative made me realize I really need to get into electronic theory a little bit more

Offline DireHavok

  • Full Member
  • ***
  • Joined: Apr 2014
  • Location: United States
  • Posts: 29
  • Karma: +4/-0
  • Gender: Male
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #175 on: May 16, 2014, 09:51:35 PM »
wow this raptor build is really trying my patients grrrr.. I cannot get it to fire no matter what I do.

Offline DireHavok

  • Full Member
  • ***
  • Joined: Apr 2014
  • Location: United States
  • Posts: 29
  • Karma: +4/-0
  • Gender: Male
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #176 on: May 16, 2014, 10:24:59 PM »
screw it this thing is going in the recycled failures bin raged:

Offline andy105

  • Jr. Member
  • **
  • Joined: Oct 2013
  • Location: CALI
  • Posts: 11
  • Karma: +0/-0
  • Gender: Male
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #177 on: May 16, 2014, 10:52:25 PM »

S: Vin
D: Batt +
G: Batt -



1.  This is a teeny tiny smd part and needs mounted.  I used a 3x4 piece of veroboard and removed areas of  copper as shown below...



what did you use to remove the copper of the strip the board tired a razor blade and its a bit ineffective also i  got these caps 
http://www.digikey.com/product-detail/en/CL31B226KPHNNNE/1276-2769-1-ND/3890855
and was wondering how i would parallel these tiny smd type caps  would it be the same method  as the pfet

Offline DireHavok

  • Full Member
  • ***
  • Joined: Apr 2014
  • Location: United States
  • Posts: 29
  • Karma: +4/-0
  • Gender: Male
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #178 on: May 17, 2014, 12:11:01 AM »
so for the pot I see its wired with 2 wires only....trim- & trim+, so trim- goes to wiper and trim+ goes to one of the outer legs or do I have this wrong. I cant figure out why chip wont turn on. reason I ask is most pots are wired with a ground correct .

Offline mamu

  • PV Master
  • *******
  • Joined: Dec 2013
  • Location: IN
  • Posts: 476
  • Karma: +70/-3
  • Gender: Female
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #179 on: May 17, 2014, 01:05:25 AM »
what did you use to remove the copper of the strip the board tired a razor blade and its a bit ineffective also i  got these caps 
http://www.digikey.com/product-detail/en/CL31B226KPHNNNE/1276-2769-1-ND/3890855
and was wondering how i would parallel these tiny smd type caps  would it be the same method  as the pfet

You can cut the tracks of the stripboard with a spot face cutter or a small drill bit.

You can mount the caps on a stripboard if you want.  I just stack them one on top of the other and solder the ends together and then solder a piece of wire to each end, then shrink wrap the works.


so for the pot I see its wired with 2 wires only....trim- & trim+, so trim- goes to wiper and trim+ goes to one of the outer legs or do I have this wrong. I cant figure out why chip wont turn on. reason I ask is most pots are wired with a ground correct .

Did you wire the middle leg (wiper) of the pot to pin 9 (pin on the far left) - that's the gnd connection for the pot.  If you did, make sure there is a secure soldered connection on trim + and trim -.

Also, did you check the fire switch for continuity?

Offline Jashe123

  • Full Member
  • ***
  • Joined: Apr 2014
  • Location: Pasadena MD.
  • Posts: 35
  • Karma: +3/-0
  • Gender: Male
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #180 on: May 17, 2014, 05:52:24 AM »
Thanks mamu. This thing is awesome! Tough build. Took about 6 hrs.

Offline DireHavok

  • Full Member
  • ***
  • Joined: Apr 2014
  • Location: United States
  • Posts: 29
  • Karma: +4/-0
  • Gender: Male
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #181 on: May 17, 2014, 07:27:44 AM »
Mamu, yes far left pin#9 is connected to wiper trim pos to outer leg of pot. Switch is reading continuity also. There is just something preventing module from turning on. I have 3 raptors and did it to 2  of then which came right from GE. 3rd(digikey) caps are storing energy also. It has to be somewhere in the on/off remote. Cut it should still turn on even if pot is not connected correct?

Offline mamu

  • PV Master
  • *******
  • Joined: Dec 2013
  • Location: IN
  • Posts: 476
  • Karma: +70/-3
  • Gender: Female
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #182 on: May 17, 2014, 02:01:58 PM »
Thanks mamu. This thing is awesome! Tough build. Took about 6 hrs.

Well done and congratz, Jashe123!!

Yeah, these buiilds are time consuming but well worth it.

Mamu, yes far left pin#9 is connected to wiper trim pos to outer leg of pot. Switch is reading continuity also. There is just something preventing module from turning on. I have 3 raptors and did it to 2  of then which came right from GE. 3rd(digikey) caps are storing energy also. It has to be somewhere in the on/off remote. Cut it should still turn on even if pot is not connected correct?

Without a resistor or POT connected at trim, the converter will fault to an output of 0.59v, which would appear not to be firing since that voltage is not enough to fire an atty. 

Check all your soldered connections to and from and double-check the resistor and POT to make sure they are connected properly and the POT is working correctly.

Offline DireHavok

  • Full Member
  • ***
  • Joined: Apr 2014
  • Location: United States
  • Posts: 29
  • Karma: +4/-0
  • Gender: Male
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #183 on: May 17, 2014, 02:06:22 PM »
I'll go thru every thing again I have a idea uh en what it might be  the pot resistor is slightly under 200ohm not much maybe a little more little less. Also should it matter on resistors if they are 1/4 watt or 1/2 watt?

Offline Jashe123

  • Full Member
  • ***
  • Joined: Apr 2014
  • Location: Pasadena MD.
  • Posts: 35
  • Karma: +3/-0
  • Gender: Male
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #184 on: May 17, 2014, 03:35:13 PM »
@ direhavok don't give up bro. As far as the resistors go I use 1/4 watt for the smaller size of them. Works fine. Most 200 ohm pots have a 5% + or - tolerance so if it's @ 190 -210 ohms it's fine.

Offline DireHavok

  • Full Member
  • ***
  • Joined: Apr 2014
  • Location: United States
  • Posts: 29
  • Karma: +4/-0
  • Gender: Male
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #185 on: May 18, 2014, 05:01:16 PM »
So here it is..lots of sweat, blood & tears. But she's a vapin. Turns out sleds were bad not allowing full voltage thru. Thanx for all the support..what a powerful mod. 6v very hot...lol not gonna use at full output. 4.5v is good enuff.  :laughing2: :thumbsup:

Online Breaktru

  • Administrator
  • PV Master
  • *****
  • Joined: Nov 2008
  • Location: NY
  • Posts: 3299
  • Karma: +784/-4
  • Gender: Male
  • PLEASE participate in this forum
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #186 on: May 18, 2014, 05:40:38 PM »
So here it is..lots of sweat, blood & tears. But she's a vapin. Turns out sleds were bad not allowing full voltage thru. Thanx for all the support..what a powerful mod. 6v very hot...lol not gonna use at full output. 4.5v is good enuff.

Congrats  :beer-toast:
It's looking real good  :thumbsup:

Offline Jashe123

  • Full Member
  • ***
  • Joined: Apr 2014
  • Location: Pasadena MD.
  • Posts: 35
  • Karma: +3/-0
  • Gender: Male
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #187 on: May 18, 2014, 05:53:20 PM »
Great job. Looks awesome. With my .3 build I found 4.5 to be just right.

Offline memoevapor

  • Sr. Member
  • ****
  • Joined: Apr 2014
  • Location: Amarillo TX USA
  • Posts: 82
  • Karma: +4/-0
  • Gender: Male
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #188 on: May 21, 2014, 06:41:52 AM »
Very nice Raptor mod DireHavok. :rockin smiley:

Offline Jashe123

  • Full Member
  • ***
  • Joined: Apr 2014
  • Location: Pasadena MD.
  • Posts: 35
  • Karma: +3/-0
  • Gender: Male
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #189 on: May 22, 2014, 04:02:35 PM »
So I am thinking of building another raptor box with USB port charging capabilities and also with a volt/ohm reader can anyone point me in the direction of an ohm/voltmeter that small also a small USB port AC to DC converter. I basically want to be able to shut the box and not have to open it anymore any help is greatly appreciated

Offline DireHavok

  • Full Member
  • ***
  • Joined: Apr 2014
  • Location: United States
  • Posts: 29
  • Karma: +4/-0
  • Gender: Male
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #190 on: May 22, 2014, 04:18:25 PM »
http://www.stealthvape.co.uk/index.php?route=mobile_store/product&fspath=66&product_id=297.   

These are the small ohm/volt meters.

Dont know about usb


Offline Jashe123

  • Full Member
  • ***
  • Joined: Apr 2014
  • Location: Pasadena MD.
  • Posts: 35
  • Karma: +3/-0
  • Gender: Male
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #191 on: May 22, 2014, 04:21:40 PM »
Thanks

Offline mamu

  • PV Master
  • *******
  • Joined: Dec 2013
  • Location: IN
  • Posts: 476
  • Karma: +70/-3
  • Gender: Female
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #192 on: May 24, 2014, 10:14:02 PM »
I updated my wiring guide to include a master kill switch.

We've found that the zener diode does not block idle current drain, so you HAVE to remove the batts from the mod at cutoff voltage, or have a master kill switch, else the batts will continue to drain past an unsafe voltage.

With idle current drain wiping out our batts if left in the mod past the cutoff voltage, it would be a good idea to include a master kill switch, especially those mods with internal lipo batts in which you can't easily remove the batts.  A master kill switch also, of course, protects the converter from accidentally firing the atty.

The important consideration for a master kill switch with these converters that have idle current at the on/off control is to have a disconnect between Vin and voltage source.  With a DPST switch wired as shown in the guide, Vin is disconnected from voltage source and also on/off control when the switch is in the off position.  You can safely leave the batts in your mod for however long you like and not have to worry about current drain - as long as you remember to turn the switch off - that I can't help you with. :laughing:

(Edit: a rated slide switch is needed)

I also updated the guide to recommend a 4.7K ohm pull-down resistor, instead of the 7.5K.

The wiring guide is updated in the post where I posted it in this thread, but here it is also...
« Last Edit: May 25, 2014, 10:09:52 PM by mamu »

Offline Jashe123

  • Full Member
  • ***
  • Joined: Apr 2014
  • Location: Pasadena MD.
  • Posts: 35
  • Karma: +3/-0
  • Gender: Male
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #193 on: May 24, 2014, 10:27:37 PM »
@DireHavok. Can the meters you suggested also be a volt meter display?  Also it says the input voltage is only rated for a 3.7 battery. I'm running two in series so can I use a step down resistor to power it? Was really hoping to only have one display on the box. Thanks

Offline DireHavok

  • Full Member
  • ***
  • Joined: Apr 2014
  • Location: United States
  • Posts: 29
  • Karma: +4/-0
  • Gender: Male
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #194 on: May 24, 2014, 10:43:13 PM »
Its ohms typically used in resistance testers for atties

Offline Jashe123

  • Full Member
  • ***
  • Joined: Apr 2014
  • Location: Pasadena MD.
  • Posts: 35
  • Karma: +3/-0
  • Gender: Male
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #195 on: May 24, 2014, 10:48:51 PM »
Yes I know. I was looking for a led display that can display voltage and ohms all in one and still have a voltage input rating of at least 8.4 volts. Just seeing if such a thing exists. I could use the meter you you suggested but I would still need a separate volt meter

Offline DireHavok

  • Full Member
  • ***
  • Joined: Apr 2014
  • Location: United States
  • Posts: 29
  • Karma: +4/-0
  • Gender: Male
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #196 on: May 24, 2014, 10:51:59 PM »
New Raptor build only issue is the switch led burnt out nominal voltage was 2.8v I need the 12v one grrr *bangs head against wall.lol

Offline Jashe123

  • Full Member
  • ***
  • Joined: Apr 2014
  • Location: Pasadena MD.
  • Posts: 35
  • Karma: +3/-0
  • Gender: Male
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #197 on: May 24, 2014, 10:57:26 PM »
Daaaaayum I love that paint job. Pretty sick. Looks awesome

Offline DireHavok

  • Full Member
  • ***
  • Joined: Apr 2014
  • Location: United States
  • Posts: 29
  • Karma: +4/-0
  • Gender: Male
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #198 on: May 24, 2014, 11:17:49 PM »
I forgot to put resistor on led and it burnt out...another on order.. derp

Offline Jashe123

  • Full Member
  • ***
  • Joined: Apr 2014
  • Location: Pasadena MD.
  • Posts: 35
  • Karma: +3/-0
  • Gender: Male
Re: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
« Reply #199 on: May 24, 2014, 11:21:21 PM »
Really nice job recessing it. I just got a 26650 tobh for mine. The air flow is awesome! Really allows you to crank the rapto up and not get a burnt taste. Plus it looks great on it.

Breaktru Forum  |  eCigarette Forum  |  Modding  |  Topic: Tinkering with the Naos Raptor - 20A, 120W dc/dc converter...
 

gfxgfx
gfx gfx
Powered by MySQL Powered by PHP Valid XHTML 1.0! Valid CSS!