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Breaktru Forum  |  eCigarette Forum  |  Modding  |  Topic: Tinkering with the OKL2-T20 20A 110W dc/dc converter...
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Author Topic: Tinkering with the OKL2-T20 20A 110W dc/dc converter...  (Read 141438 times)

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Offline SDaddy

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Re: Tinkering with the OKL2-T20 20A 110W dc/dc converter...
« Reply #400 on: January 02, 2017, 12:50:59 AM »
Its regulated and its a P-Fet not a mosfet. I know when building all my unregulated boxes, I would use a 15k resistor on the mosfet. I have seen several diagrams and see none with a 15k resistor on the p-fet.

True, but you don't even need the p-fet in that configuration.

Offline SDaddy

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Re: Tinkering with the OKL2-T20 20A 110W dc/dc converter...
« Reply #401 on: January 02, 2017, 11:01:21 AM »
Anyway, is your fire switch soldered?  You may have used too much heat on it if it is.

All your grounds at the 510? Any of them loose?

Did you test this outside the box before you installed it?

I don't see anything wrong with the diagram , although I would rather use a fuse than a p-fet

The only things that should be causing auto-fire may be:  bad soldering at key locations, or,   exposed areas contacting the box shorting it out, or over-heating the chip/parts while soldering.



Offline chopper71

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Re: Tinkering with the OKL2-T20 20A 110W dc/dc converter...
« Reply #402 on: January 02, 2017, 12:44:36 PM »
Yes the switch is soldered and it looks to be good. All grounds are done at the 510, none seem to be loose. Yes I'm testing this outside the box. Only thing that is in the box is the 510. Could the problem be the resistors I am using? The are the small SMD ones. I used for both the 20k and the 1.43k. I'm attaching a photo of the 1.43k and the 20k is about the same size. I do have those coming in that have the long legs on them. I appreciate your help SDADDY.

Offline SDaddy

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Re: Tinkering with the OKL2-T20 20A 110W dc/dc converter...
« Reply #403 on: January 02, 2017, 01:30:55 PM »
Using SMD version of the resistors is fine. Shouldn't be an issue as long as everything is wired properly. Again, you may have just burnt one.
You did attach one leg of the pot to the center leg, yes?

Desolder the firing switch, see if that does anything. After that, the only suggestion is replacing the resistors, which you are already on.


Offline chopper71

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Re: Tinkering with the OKL2-T20 20A 110W dc/dc converter...
« Reply #404 on: January 02, 2017, 01:59:28 PM »
Center leg on what? sorry not sure of what you are meaning.

Offline chopper71

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Re: Tinkering with the OKL2-T20 20A 110W dc/dc converter...
« Reply #405 on: January 02, 2017, 02:34:11 PM »
The 20k resistor is that what is suppose to keep it from auto firing?

Offline SDaddy

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Re: Tinkering with the OKL2-T20 20A 110W dc/dc converter...
« Reply #406 on: January 02, 2017, 03:33:10 PM »
The 20k resistor is that what is suppose to keep it from auto firing?

It's on the same circuit, so it could be your problem.

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Re: Tinkering with the OKL2-T20 20A 110W dc/dc converter...
« Reply #407 on: January 09, 2017, 07:39:13 PM »
Got it all figured out. The seller sent me the Positive instead of the Negative board. He was shipped the wrongs one and didn't catch it. So he is making it right. I did figure how to wire it though and its working nice. Instead of running the 20k resistor to the vin from the on/off pad. Run it from the on/off pad to the Negative pad. Then run the on/off wire from the pad to the on/off switch. Then from there to the fire switch, then from there to the Positive on the battery sled. I got 3 of the + boards. So I'm keeping the one I got wired up and he is sending me 2 new - ones. I re done this diagram to show how I wired the OKL2-T20 P board.

« Last Edit: January 09, 2017, 07:48:05 PM by chopper71 »

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Re: Tinkering with the OKL2-T20 20A 110W dc/dc converter...
« Reply #408 on: April 17, 2017, 03:35:36 AM »
Hi , I am new to the forum and modding , been reading and educating myself and feel quite confident to start my first build . Quick question , how do you identify the pol - and pol + okl2 chipsets ? People do make mistakes with your order and after using it you find that it's not what you ordered , that sucks .

Offline chopper71

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Re: Tinkering with the OKL2-T20 20A 110W dc/dc converter...
« Reply #409 on: April 17, 2017, 04:06:37 PM »
This is how you can tell the difference in the two boards.
L21120 - is Positive
L20120 - is Negative.

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Re: Tinkering with the OKL2-T20 20A 110W dc/dc converter...
« Reply #410 on: April 17, 2017, 04:55:04 PM »
Thanks chopper71 , is this number on the package ? I am waiting on the negative pol from Mauser , should be getting this week .

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Re: Tinkering with the OKL2-T20 20A 110W dc/dc converter...
« Reply #411 on: April 17, 2017, 05:31:39 PM »
The number will be on top of the board. That's the best way to make sure. I'm posting a example where it is. This is the neg board.

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Re: Tinkering with the OKL2-T20 20A 110W dc/dc converter...
« Reply #412 on: April 18, 2017, 07:38:50 AM »
-@ Chopper71 ,thank you kindly . Is there anyone on this forum that knows where to find pcb for okl2 like hill1 15side was selling  ? I think it was in this post #349 ?

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Re: Tinkering with the OKL2-T20 20A 110W dc/dc converter...
« Reply #413 on: April 18, 2017, 08:48:04 AM »
Ebie this is where I get my PCB board to make mine. You can get either the board a lone or the whole kit.

http://puffervape.com/index.php?cPath=33_92

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Re: Tinkering with the OKL2-T20 20A 110W dc/dc converter...
« Reply #414 on: April 18, 2017, 05:19:20 PM »
Wow , seriously neat builds with these pcb boards , I kinda like the "less is more " thingy . Have to get from those pcb boards for my projects . I must build four mods , what worries me now is the fact that I have to educate myself more to solder those tiny components  , too expensive to mess it up with crappy soldering , well Google is my friend and YouTube my mentor lol . Thanks Chopper71 for your speedy replies , have you built of these pcb boards personally ?

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Re: Tinkering with the OKL2-T20 20A 110W dc/dc converter...
« Reply #415 on: April 18, 2017, 05:24:23 PM »
Seems like I will be building a mod as per mamu's diagram and a few mods using puffervapes okl2 kits, pretty excited , now to sell the pcb boards to the government

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Re: Tinkering with the OKL2-T20 20A 110W dc/dc converter...
« Reply #416 on: April 18, 2017, 06:34:22 PM »
Wow , seriously neat builds with these pcb boards , I kinda like the "less is more " thingy . Have to get from those pcb boards for my projects . I must build four mods , what worries me now is the fact that I have to educate myself more to solder those tiny components  , too expensive to mess it up with crappy soldering , well Google is my friend and YouTube my mentor lol . Thanks Chopper71 for your speedy replies , have you built of these pcb boards personally ?

Yes I have and you will want to get a hot air rework station. Plus some good solder paste. Yes YouTube and Google is very good friend to have  :).
You are welcome and I hope you can make something nice.

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Re: Tinkering with the OKL2-T20 20A 110W dc/dc converter...
« Reply #417 on: April 21, 2017, 12:22:55 PM »
Question , can i use the IRLB3034 N-FET instead of the ZVNL 110 N-FET ?

Offline chopper71

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Re: Tinkering with the OKL2-T20 20A 110W dc/dc converter...
« Reply #418 on: April 21, 2017, 11:21:48 PM »
Question , can i use the IRLB3034 N-FET instead of the ZVNL 110 N-FET ?

I believe that is the same N-FET I use.

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Re: Tinkering with the OKL2-T20 20A 110W dc/dc converter...
« Reply #419 on: April 22, 2017, 04:19:09 PM »
In the diagram mamu stipulates the zvnl with a 1k ohm resistor , will it be ok to use the irlb3034 with a 15k ohm resistor in its place ? Sorry for not being clearer in my previous post .

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Re: Tinkering with the OKL2-T20 20A 110W dc/dc converter...
« Reply #420 on: April 23, 2017, 01:57:59 PM »
In the diagram mamu stipulates the zvnl with a 1k ohm resistor , will it be ok to use the irlb3034 with a 15k ohm resistor in its place ? Sorry for not being clearer in my previous post .

I was wrong, I use the zvnl as well. Just checked and that is the one. I would not suggest using anything else but what is shown.

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Re: Tinkering with the OKL2-T20 20A 110W dc/dc converter...
« Reply #421 on: April 25, 2017, 08:42:34 AM »
Is there any other n fet i can use other than the specified one ? The two main suppliers in South Africa dont have it in stock . I must buy from the US .

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Re: Tinkering with the OKL2-T20 20A 110W dc/dc converter...
« Reply #422 on: April 25, 2017, 09:03:10 AM »
You can just leave off the fet and the diode. Neither "must" be used. The fire button works through the board and not directly with the power source.

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Re: Tinkering with the OKL2-T20 20A 110W dc/dc converter...
« Reply #423 on: April 26, 2017, 02:41:54 PM »
My first mod , as per mamu's diagram . Thanks Mamu and all other forum members for educating me , it's been quite a journey . I am waiting for the 510 connector from a vape store that is getting it from the US , then it will be complete , and ready to be vape . I couldn't resist building it to this point . My next build will be the okl2 from Puffervape , I just like the layout and simplicity of less wires to hide . Thanks to all that contributed to this thread , u guys rock .

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Re: Tinkering with the OKL2-T20 20A 110W dc/dc converter...
« Reply #424 on: April 26, 2017, 03:49:29 PM »
My first mod , as per mamu's diagram . Thanks Mamu and all other forum members for educating me , it's been quite a journey . I am waiting for the 510 connector from a vape store that is getting it from the US , then it will be complete , and ready to be vape . I couldn't resist building it to this point . My next build will be the okl2 from Puffervape , I just like the layout and simplicity of less wires to hide . Thanks to all that contributed to this thread , u guys rock .

Very nice, I really like how you did that.

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Re: Tinkering with the OKL2-T20 20A 110W dc/dc converter...
« Reply #425 on: April 26, 2017, 04:25:15 PM »
Great first mod ebie. Congrats

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Re: Tinkering with the OKL2-T20 20A 110W dc/dc converter...
« Reply #426 on: April 28, 2017, 02:22:01 PM »
Thank you guys for a great forum and the speedy replies, considering our time zones. Government has approved the Puffervape okl2 PCB build. Will be ordering month end. Will post updates on the build.    :thankyou:

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Re: Tinkering with the OKL2-T20 20A 110W dc/dc converter...
« Reply #427 on: May 03, 2017, 02:47:35 PM »
I should be able to figure this out but I just can't think straight right now. Will this work with an OKL build? http://www.modmeter.com/v2.php

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Re: Tinkering with the OKL2-T20 20A 110W dc/dc converter...
« Reply #428 on: May 24, 2017, 03:13:38 PM »
@ SDaddy , how can i get in contact with David4500 , i want to purchase a pwm pcb from him . Thanks

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Re: Tinkering with the OKL2-T20 20A 110W dc/dc converter...
« Reply #429 on: May 24, 2017, 05:33:13 PM »
You can try his Facebook group.   https://m.facebook.com/MosMaxElectronics


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Re: Tinkering with the OKL2-T20 20A 110W dc/dc converter...
« Reply #430 on: May 25, 2017, 05:55:18 AM »
Thanks SDaddy

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Re: Tinkering with the OKL2-T20 20A 110W dc/dc converter...
« Reply #431 on: May 27, 2017, 11:25:32 PM »
Hey there fellas. I've also got a FB group, just search for "MosMax Electronics Group" :)

Breaktru Forum  |  eCigarette Forum  |  Modding  |  Topic: Tinkering with the OKL2-T20 20A 110W dc/dc converter...
 

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