USB Charge Booster - Passthru DCP Enumerator [Final]

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WarHawk-AVG
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USB Charge Booster - Passthru DCP Enumerator [Final]

Corrections made to board issue (cap moved closer to the VCC pin on the IC), even shrank board by 1mm width, fixed the USB SMD out pad issue (pads were too narrow by about. 5mm)

Top:

Bottom:

Everything remains the same

I did however get a custom sig on it but it doesn’t render it on OSHPark, but Mattaus says it will be on the board.

3D render
Top:

Bottom:

Charge Booster – DCP Enumerator/USB Wrapper

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Final revision-tested and working well, no smoking of the IC and charges at well over 1A

Edited by: WarHawk-AVG on 10/30/2014 - 08:33
Halo...
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I see overlapping holes to make an oval via. Oshpark advises to use one larger via instead.
http://support.oshpark.com/support/solutions/articles/134889-internal-cu...

WarHawk-AVG
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That was a stock component that came from the sparkfun.lbr repository I got online

Under Sparkfun-Connectors USB-A-SMT-MALE

Quote:
The suggested alteration is simply to use vais large enough to accommodate the size of the flat connectors. You can find a suitable barrel jack footprint in the Connectors section of the excellent Sparkfun Eagle Library. Other parts that use these style of connectors are somewhat easy to modify by right clicking the part and selecting “Modify Package”.
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Some fabs allow overlapping drills, others don’t. Oshpark says no.

oshpark wrote:
Make sure the center of your drill hits are all inside the board outline. Anything outside of the board outline is automatically removed.
Overlapping drill hits aren’t allowed.


Oshpark is working on officially supporting oval vias, plated slots.

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So I need to make the oval a round one like on the female USB then?

I will have to figure out how to modify the part then

I also need to double check my pinouts on the TPS2514

Well I see an issue right off the bat

Pins on the TPS2514 are wrong, board will work if you use the TPS2513 (dual output [channel 1 on pins 1/6, and channel 2 on pins 3/4, but not on single channel TPS2514])
Which brings me to the fact that at digikey they don’t have TPS2514 in CT, only tape and reel, mouser has them but the TPS2513 costs less than the TPS2014 at digikey than the TPS2514 at mouser..hmmm

haha..and my silk screen on the back side is backwards…jeez

ok..on to revision 2…doh!

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I’ll try working on the male plug package to fit in the OSHPark rules and fix the pinouts, and turned in a ticket asking them if the sparkfun board they recommend I use will work or not

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The item you linked to is not for sale or the link does not work… What is it, what does it do and why do I want to make one so badly?

"Those who hammer their guns into plows will plow for those who do not."

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scottyhazzard wrote:
The item you linked to is not for sale or the link does not work… What is it, what does it do and why do I want to make one so badly?

fixed the link in the OP

Look at the pics…it makes the charging device charge at it’s max rate…more or less if you plug your phone into a non-coded charging port or data port on a computer it will only charge at maybe 500mA to 1A, with this inline, not only “can” charge at up to 10watts (2A [current provided by charging device]) but it also acts as a data isolator [juice jacking prevention] (aka USB Condom) no more sticking your thingy into a hole you are unsure it’s safe and automatically charge at max rate Wink

http://www.zdnet.com/protect-your-devices-with-a-10-usb-condom-7000033038/

Wow..I just realized my design is kinda like theirs but “automatic” and will cost MUCH less than $9.99 a piece, and is OPEN SOURCE! (notice theirs is also on a “purple board” but I bet theirs isn’t shared [mine isn’t yet until I get it right] I think I might just put BLF DCP on the silk screen ;P )

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There fixed it…and the stupid bDocu words from being backwards

Standby…pinouts bassackwards…fixing

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WarHawk-AVG wrote:
I’ll try working on the male plug package to fit in the OSHPark rules and fix the pinouts, and turned in a ticket asking them if the sparkfun board they recommend I use will work or not

Oshpark themselves recommended you use that male plug with overlapping holes?
Oshpark’s fab can actually do oval vias, plated slots. Not officially supported (yet) as there is a chance it won’t get done as it requires the fab to notice it.
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Halo… wrote:
WarHawk-AVG wrote:
I’ll try working on the male plug package to fit in the OSHPark rules and fix the pinouts, and turned in a ticket asking them if the sparkfun board they recommend I use will work or not
Oshpark themselves recommended you use that male plug with overlapping holes? Oshpark’s fab can actually do oval vias, plated slots. Not officially supported (yet) as there is a chance it won’t get done as it requires the fab to notice it.

Actually the gentlemen from OSHPark sent a revision of the original part back to me (I sent him the .brd file and he fixed it [plus he changed the color of the tDocu and bDocu that made it much easier to look at]), the holes were multi-drill hits when I looked at the part…but I found a more viable replacement in a different library repository anyway

His response in email

Quote:
I’m really not sure how well that would work, actually. The fab automatically removes overlapping drill hits, so there’s no guarantee anyone will see that it’s supposed to be a slot. The way the fab usually looks for plated slots is by looking for the following:
-A slot outline drawn on the board outline layer
-A copper pad underneath
-at least one drill hit
-A minimum slot size of 40 mil.
It’s also worth noting that we don’t officially support plated slots, so following that guideline isn’t guaranteed to succeed. In a lot of cases, it’s better to simply replace the slot with a large via, and call it done. If you want to go through with it though, I’ve draw the slots on the attached brd file, which should help you out with getting things set up.
-Dan

P.S. His fix is in the “files” repository from the OP
Plus I don’t think it’s a “via” more or less a groove (multiple drills in a line that overlap) [the “plated slot” he and you were referring to] for the USB locking tab to fit thru, then have solder pad on top and bottom to solder to for retention/strength of the USB plug on the board…makes it MUCH more rigid. I do see the problem with overlapping drills like that though.

Can someone double check the pinouts of the USB’s on both end…I might have the male side backwards, the + and ground pins

It’s way past my bedtime…I work deep nights and I’m getting a bit fuzzy

Dangit!

Aaaaand I had it backwards…fixing…jeez

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Ok, went over the USB pins 4x times now…they are correct…even drew out a picture of the connectors and the pins…and oriented it to the board…and fixed the DCP pins as well…with the original yes I had to reverse the D+ and D- pins, with the U1 flipped didn’t need the vias

ok..I’m done…files and everything are in the dropbox repository…if you want to doublecheck…please let me know..thanks

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Excellent work, WarHawk-AVG! I will be sure to give this one a shot once my other projects are finished up. Stupid tube amp.

"Nothing is true, everything is permitted."

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Final revision up…triple checked (even printed out the components, laid them out on paper to ensure the pinouts and everything was correct)

Rounded the edges so the board won’t be as sharp or stabby in your pocket or bag or whatever

I had it correct for the USB connections on my first try, I kept second guessing myself and ended up mucking it up, I did have the D+ and D- backwards, with the orientation on the board the way it is now, don’t need the vias thru the board straight shot to the OUT USB connection

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Love to see a picture of this when you get one put together. So close to buying the set up to put one together myself.

"Those who hammer their guns into plows will plow for those who do not."

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I am going to order a set, today is payday, and I don’t think $3 will break the bank

Then just have to order 3X components and just put together, then to test em out

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Boards are at fab…ordering the components

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Sorry if this is obvious to learned souls like Warhawk, but there is nothing to flash right? Just solder paste and heat. I think this would make a nifty little gift or “stocking stuffer” for folks this Christmas season and I intend to make a bunch. Just going to wait to see how Warhawk fares with his tests after building.

"Those who hammer their guns into plows will plow for those who do not."

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What does this device do?

The Journal of Alternative Facts TM

"It is critical that there is a credible academic source for the growing and important discipline of alternative facts. This field of study will just keep winning, and we knew that all the best people would want to be on board. There is a real risk in the world today that people might be getting their information about science from actual scientists"

 

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It ensures your device charges at full speed.
A device will not charge at full speed unless it sees the coding it wants on the usb pins. Problem is, there is no standard. Android wants one code, Apple wants apple code and a few others want different codes.
This chip will adapt and always present the code needed for max charging speed. It switches among 6 different coding schemes.

And as a side effect it will prevent juice jacking. A USB charging port stealing your devices’s data and/or injecting malicious code.

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scottyhazzard wrote:
Sorry if this is obvious to learned souls like Warhawk, but there is nothing to flash right? Just solder paste and heat. I think this would make a nifty little gift or “stocking stuffer” for folks this Christmas season and I intend to make a bunch. Just going to wait to see how Warhawk fares with his tests after building.

Took me 6 tries to get simple board made, not that learned, but what halo said, automatic ranging of charge scheme, also have tested the chips on my dual port DCP enumerator I made, that one unlike this one needs external power source, this one uses power available and provided by USB port it’s plugged into
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Forgive my noobness…but how does this connect to an item you want to charge? Is it a board you install internally, or does it have some sort of USB in/out and connect via charging port, between charger and item to be charged?

No one, after lighting a lamp, puts it away in a cellar nor under a basket, but on the lampstand, so that those who enter may see the light.

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Yes, USB male in on left (in), USB Female on right (out), looks like this

http://www.zdnet.com/protect-your-devices-with-a-10-usb-condom-7000033038/

But automatic due to chip, not static based upon resistors

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kronological wrote:
connect via charging port, between charger and item to be charged?

Just plug and play!

Standard usb female port at one end, standard usb male plug at the other end.

WarHawk-AVG wrote:
But automatic due to chip, not static based upon resistors

AKA it just works. Whatever you plug in. Max charge speed + juice jack protection.

That $10 usb condom does not do full speed charging. It prevents juice jacking but they don’t mention it does slow charging only. No intelligent chip.

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Halo… wrote:

AKA it just works. Whatever you plug in. Max charge speed + juice jack protection.

Yup yup :bigsmile:
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Thanks for the quick response.

Can this be ordered as a complete item, build kit, or…just a board, and we buy the parts separately from digikey/mouser/ebay? Will a housing/cover be part of the get-up, or is the board just left exposed?

I am amazed at the talent an ingenuity of BLF members. Nicely done, WH!

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So far just board, I put BOM on OSHPark page and here for DIYers, but I am sure RMM might pick em up and sell em, I did it creative commons license no commercial, but put BLF on it because it’s “ours”

No cover as of yet. Need to get one for meaurements then try to figure out printable case

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Halo… wrote:
It ensures your device charges at full speed.
A device will not charge at full speed unless it sees the coding it wants on the usb pins. Problem is, there is no standard. Android wants one code, Apple wants apple code and a few others want different codes.
This chip will adapt and always present the code needed for max charging speed. It switches among 6 different coding schemes.

And as a side effect it will prevent juice jacking. A USB charging port stealing your devices’s data and/or injecting malicious code.


Very interesting, i may want a few of these, especially if RMM starts selling them

The Journal of Alternative Facts TM

"It is critical that there is a credible academic source for the growing and important discipline of alternative facts. This field of study will just keep winning, and we knew that all the best people would want to be on board. There is a real risk in the world today that people might be getting their information about science from actual scientists"

 

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WarHawk wrote:
No cover as of yet. Need to get one for meaurements then try to figure out printable case

Clear 18650 shrink wrap from FT works great.
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Oh yeah, al my TP4056 charger modules get that treatment now Smile

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WarHawk, you might want to think about selling a couple!

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