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Old 01-27-2013, 01:33 AM #1265
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Default Re: FREE DIY open source BOOST driver!!! Tested & working!!

Is the kit still available?
PM me please. HMike


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Old 01-29-2013, 03:58 AM #1266
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Default Re: FREE DIY open source BOOST driver!!! Tested & working!!

BenBoost Mini V5 board.
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Old 01-29-2013, 04:02 AM #1267
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Default Re: FREE DIY open source BOOST driver!!! Tested & working!!

Very nice!
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Old 01-29-2013, 04:49 AM #1268
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Default Re: FREE DIY open source BOOST driver!!! Tested & working!!

oooh.. aaaah.. is that gold plating I see?

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Old 01-29-2013, 04:53 AM #1269
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Default Re: FREE DIY open source BOOST driver!!! Tested & working!!

Here are the specs on the boards of Osh Park.
All boards are FR4 170Tg/290Td which are suitable for lead-free processes and temperature.
They have ENIG (gold) finish for superior solderability and environmental resistance.
They’re 1.6mm thick (0.063 inches) with 1 ounce copper on both sides. For four layer boards, the internal copper is 0.5 ounce.
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Old 01-29-2013, 09:13 AM #1270
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Default Re: FREE DIY open source BOOST driver!!! Tested & working!!

The gold is a bit overkill for this application, but that's not a problem. Just hope you didn't pay extra for it.
IIRC, you've got a mylar stencil for heat reflowing, the gold shouldn't cause you any problems. However, anyone attempting to use a soldering iron should be aware that gold will mix with solder so be quick and don't muck around too much. Which I suppose is always good advice.
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Old 01-30-2013, 05:37 AM #1271
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Default Re: FREE DIY open source BOOST driver!!! Tested & working!!

Benboosts are now for sale...kit & assembled form.
Benboost Mini V5 - $13.50 : Mohgasm LLC, Have you experienced one lately?
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Old 02-24-2013, 12:08 AM #1272
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Default Re: FREE DIY open source BOOST driver!!! Tested & working!!

not there yet
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Old 03-16-2013, 04:59 AM #1273
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Default Re: FREE DIY open source BOOST driver!!! Tested & working!!

Are there any tips for building this driver without reflow equipment? For my build I don't really need it to be tiny so I'm thinking of using a soldering iron and maybe buying some of the parts in larger packages. I wouldn't use the same PCB obviously, if I did this.
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Old 03-16-2013, 05:59 PM #1274
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Default Re: FREE DIY open source BOOST driver!!! Tested & working!!

other than the obvious, which is get everything in PTH package? Nope.
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Old 05-27-2013, 12:49 AM #1275
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Default Re: FREE DIY open source BOOST driver!!! Tested & working!!

I assembled a ben boost driver, but its not seeming to work. I was wondering if someone would look over my board and tell me if I placed any components incorrectly?


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Old 05-27-2013, 01:08 AM #1276
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Default Re: FREE DIY open source BOOST driver!!! Tested & working!!

I don't think that capacitor should be touching.
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Old 05-27-2013, 02:54 AM #1277
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Default Re: FREE DIY open source BOOST driver!!! Tested & working!!

I know not everyone has hundreds of hours of soldering experience, but that looks like shit. Probably could quicker tell you what's NOT wrong with it.
I suggest you watch some videos on youtube to learn how to do a half decent solder job.. "eevblog" is a good starting point.
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Old 05-27-2013, 03:25 AM #1278
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Default Re: FREE DIY open source BOOST driver!!! Tested & working!!

Sorry, that was my first time reflow soldering. I kinda just gooped on solder paste. I'm putting another one together that I was alittle more careful with. If it doesn't turn out well I'll laser cut a solder paste stencil.
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Old 05-27-2013, 03:55 AM #1279
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Default Re: FREE DIY open source BOOST driver!!! Tested & working!!

here's a tip for you - on a board that small, just use an iron. you can solder surface mount parts with an iron and if you're careful it should turn out fine.
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Old 05-27-2013, 05:49 AM #1280
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Default Re: FREE DIY open source BOOST driver!!! Tested & working!!

Pretty sure the bottom side of those 3 caps are all on ground. What worries me is the lm3410 and the LD+ pad. You used too much paste for the lm3410 and I think it may have some shorts. Also it looks like the ld+ pad might be shorting to ground on the capacitor.

A little practice and theyll start coming out better. The DFN "no pins" package isnt easy.

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