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Old 04-09-2012, 06:13 PM #353
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Default Re: FREE DIY open source BOOST driver!!! Tested & working!!

Quote:
Originally Posted by lasersbee View Post
Don't you think $120.00 per hour PROFIT is a bit high for these
FREE DIY drivers built by members that don't have the expenses
of a PCB assembly Company...


Jerry
jerry, they (the panels) are listed with free shipping. Have at it if you think you can do 40 an hour and make $120/hr.
I'll applaud you if you can


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Old 04-09-2012, 06:31 PM #354
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Default Re: FREE DIY open source BOOST driver!!! Tested & working!!

Quote:
Originally Posted by Mohrenberg View Post
jerry, they (the panels) are listed with free shipping. Have at it if you think you can do 40 an hour and make $120/hr.
I'll applaud you if you can
I wouldn't spend all that time to build these tiny Drivers...
I would get quotes to have them build by a PCB stuffing company...

@ tsteele93...
Yeah I must be clueless not to catch that.... thanks for clarifying..

As usual you misunderstood my Canadian Business Owner's logic.

I was try to convey that a non-Company individual without the added
expenses of a Registered Company (any Company) could build the
PCBs for a lot less than $120.00 per hour profit and still make a good
profit if he could make 40 an hour...

Of course you are from the USA so you aren't used to this idea of making
an exaggerated profit off the Forum Members!
(that's also a lighthearted jest in case you missed it... )


Jerry

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Last edited by lasersbee; 07-01-2012 at 02:16 PM. Reason: Spelling errors
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Old 04-09-2012, 06:41 PM #355
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Default Re: FREE DIY open source BOOST driver!!! Tested & working!!

Quote:
Originally Posted by lasersbee View Post
I wouldn't spend all that time to build these tiny Drivers...
I would get quotes to have them build by a PCB stuffing company...

@ tsteele93...
Yeah I must be clueless not to catch that.... thanks for clarifying..

As usual you misunderstood my Canadian Business Owner's logic.

I was try to convey that a non-Company individual without the added
expenses of a Registered Company (any Company) could build the
PCBs for a lot less than $120.00 per hour profit and still make a good
profit if he could make 40 an hour...

Of course you are from the USA so you aren't used to this idea of making
an exaggerated profit off the Forum Members!
(that's also a lighthearted jest in case you missed it... )


Jerry
We are use to making an exaggerated profit off everything. That's after we pay a third world country slave wages to make it, so we can sell it
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Old 04-09-2012, 07:11 PM #356
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Default Re: FREE DIY open source BOOST driver!!! Tested & working!!

^^^^


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Old 04-09-2012, 07:33 PM #357
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Default Re: FREE DIY open source BOOST driver!!! Tested & working!!

Quote:
Originally Posted by lasersbee View Post
^^^^

Jerry
it's true too. That's why i'm slowly sourcing all my heat sinks to china. i can either work my ass off and make the stuff myself, or just pay a tiny bit more than i do on materials alone to have the whole thing made and anodized for me.
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Old 04-10-2012, 04:21 AM #358
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Default Re: FREE DIY open source BOOST driver!!! Tested & working!!

Owch!
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Old 04-10-2012, 06:30 AM #359
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Default Re: FREE DIY open source BOOST driver!!! Tested & working!!

For anyone building these in decent quantities, I have 1000 inductors on the way, and can sell them cheaper than the 53-66 cents they will cost you on digikey.

I'll throw in some free 100k ohm resistors to keep the costs down as much as possible on these.

This isnt a for sale thread so just PM me if I can help

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Old 04-10-2012, 07:02 AM #360
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Default Re: FREE DIY open source BOOST driver!!! Tested & working!!

The original supplier for the LM3410s is out of stock. I sourced a similar deal out for you

LM3410XMF/NOPB - NATIONAL SEMICONDUCTOR - IC, LED DRIVER, CONSTANT CURRENT | Newark


Gah didnt notice the double posting x.x

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Old 04-10-2012, 01:35 PM #361
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Default Re: FREE DIY open source BOOST driver!!! Tested & working!!

Contact this person on alibaba Original IC LM3410 products, buy Original IC LM3410 products from alibaba.com
It is from china but I was told it was 2.00$ a piece for a quantity less then 100 and 1.50$ a piece above that.

-Anthony
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Old 04-10-2012, 01:44 PM #362
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Default Re: FREE DIY open source BOOST driver!!! Tested & working!!

Alibaba... I have my doubts. 1.6 mhz model on this using this form factor seems to be going out of stock fast... (everywhere it's not 3$...) and with lead time currently @ 16 weeks, it'll take a while to be back in distributor's hands.

Of course, it can always be bought in huge lots off digikey and resold on 3rd party websites for a little under 2$...

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Old 04-10-2012, 01:59 PM #363
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Default Re: FREE DIY open source BOOST driver!!! Tested & working!!

Quote:
Originally Posted by cilegray View Post
Alibaba... I have my doubts. 1.6 mhz model on this using this form factor seems to be going out of stock fast... (everywhere it's not 3$...) and with lead time currently @ 16 weeks, it'll take a while to be back in distributor's hands.

Of course, it can always be bought in huge lots off digikey and resold on 3rd party websites for a little under 2$...
I contacted them a while ago and I asked all the questions and it is the 1.6mhz SOT23 package and it's made by Texas Instruments / National semiconductor.
And they said they had stock and they can ship immediately. And they accept PayPal so if they are lying youre covered. there's also no MOQ so order as little as you want if you want to try it out.

Ya If someone would purchase a bunch on digikey or mouser the price would go pretty low as well
-Anthony
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Old 04-10-2012, 02:46 PM #364
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Default Re: FREE DIY open source BOOST driver!!! Tested & working!!

Total NOOB question:

What would it take, or could it even be done, to work from this model and use this

LM3410XQMF/NOPB - NATIONAL SEMICONDUCTOR - IC, LED DRVR, 5-SOT-23 | Newark

to create a higher current version?

Obviously if it was simple then it would have already been considered. But it has been over 20 years (OMG) since I had my last E.E. class and I am struggling to re-learn some of these circuits.

EDIT: Another noob question or two.

1. Which version of the board are we getting? Is the with OVP circuit? Maybe I should ask this in Moh's thread too... Which parts should we order and which circuit are these boards? I'm just not sure which fork Moh's board is - I'll go back and try to figure for myself, but it might be a good idea to put all of that in one post.

2. Again, no toes intended to be stepped on, and I kind of asked this before more generally and inadvertently offended some people, but since I am buying parts I thought that I would be sure - but if I were building a personal build or a buyer who wanted premium materials where I was willing to spend extra money, are there any parts that you guys would spend extra money on to improve performance or lower heat or improve reliability?

Go easy on me.
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Old 04-10-2012, 03:08 PM #365
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Default Re: FREE DIY open source BOOST driver!!! Tested & working!!

I havent gotten a reply from moh yet but his first 100 boards were the regular R6 R9 with polarity protection and without ovp. Original parts list. As for the lm3410 you listed afaik it is the same item just made to more precise standards...probably needed for some certification. Not more "powerful"
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Old 04-10-2012, 03:23 PM #366
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Default Re: FREE DIY open source BOOST driver!!! Tested & working!!

Ahh, I see what I did. I had several tabs open and I was looking at

LM3410XMF/NOPB - NATIONAL SEMICONDUCTOR - IC, LED DRIVER, CONSTANT CURRENT | Newark

And saw the 1.5 amps and I was thinking it was the original part.

So when I saw

LM3410XQMF/NOPB - NATIONAL SEMICONDUCTOR - IC, LED DRVR, 5-SOT-23 | Newark

with 2.8 amps I thought it was higher power. My bad... Too many tabs open!

Thanks for the info on the board version. I was pretty sure Moh had ordered before all of the revisions has been made. I don't need OVP but I do need reverse polarity, I am always putting batteries in backwards. I do not know why!


Quote:
Originally Posted by cilegray View Post
I havent gotten a reply from moh yet but his first 100 boards were the regular R6 R9 with polarity protection and without ovp. Original parts list. As for the lm3410 you listed afaik it is the same item just made to more precise standards...probably needed for some certification. Not more "powerful"
I think he had to pull a 12 hour shift. He's either still on it, or sleeping it off...
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532nm O-like Crown, rated @ 400mW, metered @ ~450mW with AW battery!
532nm O-like Crown rated @ 500mW, not yet tested
532nm RPL-165 @ 204mW
532nm RPL-375 @ 427mW

635nm rhd Lipstick Tube @ ~485+ mW
638nm Fat Boy @ 825mW - custom build

650nm Bolly BL-8006 @ 319mW

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Last edited by tsteele93; 04-10-2012 at 04:49 PM. Reason: Went over the comma limit, for this forum
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Old 04-10-2012, 05:10 PM #367
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Default Re: FREE DIY open source BOOST driver!!! Tested & working!!

Ok, from what I can tell they are identical except for switching frequency.

The LM3410YQMF/NOPB - NATIONAL SEMICONDUCTOR - IC, LED DRVR, 5-SOT-23 | Newark $2.28 is 525 kHz

and the LM3410XQMF/NOPB - NATIONAL SEMICONDUCTOR - IC, LED DRVR, 5-SOT-23 | Newark $2.28 is 1.6 MHz.

Is one better than the other for our purposes?

I am gonna guess that the 1.6 MHz version allows us to use smaller components elsewhere in the package?

Also, I think RHD mentioned that there are cheaper options like Future Electronics LM 3410 $1.57 which is also 1.6 MHz. However, as of this writing FE has 1 of these in stock.

The top two are rated as "*Automotive Grade (Q) product incorporates enhanced manufacturing and support processes for the automotive market, including defect detection methodologies. Reliability qualification is compliant with the requirements and temperature grades defined in the AEC-Q100 standard. Automotive grade products are identified with the letter Q. For more information go to http://www.national.com/automotive." so I don't know if the extra $ is because they are better quality.

Also want to add this resource in case it is helpful to anyone involved...

The LED Drivers/LCD Bias Section of the Texas Instruments E2E Support Community
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532nm O-like 50 mW pen from Cajun Lasers - small dot, tight beam!
532nm O-like Crown, rated @ 400mW, metered @ ~450mW with AW battery!
532nm O-like Crown rated @ 500mW, not yet tested
532nm RPL-165 @ 204mW
532nm RPL-375 @ 427mW

635nm rhd Lipstick Tube @ ~485+ mW
638nm Fat Boy @ 825mW - custom build

650nm Bolly BL-8006 @ 319mW

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Old 04-10-2012, 05:24 PM #368
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Default Re: FREE DIY open source BOOST driver!!! Tested & working!!

Quote:
Originally Posted by tsteele93 View Post
Ok, from what I can tell they are identical except for switching frequency.

The LM3410YQMF/NOPB - NATIONAL SEMICONDUCTOR - IC, LED DRVR, 5-SOT-23 | Newark $2.28 is 525 kHz

and the LM3410XQMF/NOPB - NATIONAL SEMICONDUCTOR - IC, LED DRVR, 5-SOT-23 | Newark $2.28 is 1.6 MHz.

Is one better than the other for our purposes?

Also, I think RHD mentioned that there are cheaper options like Future Electronics LM 3410 $1.57 which is also 1.6 MHz. However, as of this writing FE has 1 of these in stock.

The top two are rated as "*Automotive Grade (Q) product incorporates enhanced manufacturing and support processes for the automotive market, including defect detection methodologies. Reliability qualification is compliant with the requirements and temperature grades defined in the AEC-Q100 standard. Automotive grade products are identified with the letter Q. For more information go to http://www.national.com/automotive." so I don't know if the extra $ is because they are better quality.
yep it's the 1.6MHz used in those drivers but you can't squeeze more of those anyways. 2.8A is the switching current and you can't get that to be your output current

I noticed in one of the descriptions of the links you posted that it's mentioned Output current: 2.8A - that's a mistake, it's still 1.5A like the other link

Last edited by foulmist; 04-10-2012 at 05:25 PM.
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