Great to see you're making progress with the high-speed camera !
What a challenge must be to do FPGA + DDR3 layout !, i've been watching tuts for a while and my conclusion is that it's hell compared to anything else even with for auto differential pairs routing (like altium) it's mad to do that !!! I later found that routing BGA's + DDR it's quite an art on it's own !!!, and it's also quite a challenge for the PCB manufacturers, GOOD LUCK!!!
@douro20 Altium Designer. It's really not suited to such a complex project, the signal integrity support for things like matched length traces is poor. A package such as Cadence Allegro would be more appropriate.
@DanFrederiksen I did consider discrete devices instead of modules, but it's a lot of labor to assemble, and there's a lot of points of failure with all those connections. Thermal design and clamping is also much more difficult than with modules.
I don't think he'll be able to make these cheaper than most of the high-speed cameras on the market with similar specs. He's put a lot of time and money into this design, and I'm pretty sure he's aiming for a very robust and reliable professional product.
@robot797 I will make more of these, probably after at least one design spin, as I'm sure there will be bugs in this first revision. This will probably be cheaper then most other cameras with similar specs, but still not something most individuals would likely buy.
I was also thinking of making a low cost camera using the same image sensor that's taken all the high speed videos I've posted. That version would require a PC, and I might be able to get the price under $1k.
@SMPSIRSG I can't do proper simulations because TI doesn't provide IBIS models for their parts. They basically say "follow the design rules and it will work".
Pretty Cool. Never used altium before as eagle lured me in with their low prices. Did you have to make most of the components (like connectors) for solid works or did you download them somewhere?
@triden55 Altium is good for mid range design, but is limited for high end stuff like this. A package such as Cadence Allegro would have been better for this project.
I got all the connector models from the manufacturers. They seem to be pretty good for providing models.
Great insight into what you do... Do you use Nichicon or Rubicon caps for the powerboard? I'm assuming those cylindrical things on the powerboard are caps, or are they solid polymer caps?
Well done
fruitcake117 1 month ago
Great to see you're making progress with the high-speed camera !
What a challenge must be to do FPGA + DDR3 layout !, i've been watching tuts for a while and my conclusion is that it's hell compared to anything else even with for auto differential pairs routing (like altium) it's mad to do that !!! I later found that routing BGA's + DDR it's quite an art on it's own !!!, and it's also quite a challenge for the PCB manufacturers, GOOD LUCK!!!
bejius 1 month ago
Wow
zangarkhan 2 months ago
What is the software for the PCB layout?
douro20 2 months ago
@douro20 Altium Designer. It's really not suited to such a complex project, the signal integrity support for things like matched length traces is poor. A package such as Cadence Allegro would be more appropriate.
tesla500 2 months ago
Every video you post, I become even more impressed with your abilities.
TickyTack23 2 months ago
WOW, I'm not worthy. Definitely the most impressive DIY project I've ever seen. Can't wait to see the final product.
colt4547 2 months ago
nice. did you consider TO247 IGBTs instead of modules for cost?
DanFrederiksen 2 months ago
@DanFrederiksen I did consider discrete devices instead of modules, but it's a lot of labor to assemble, and there's a lot of points of failure with all those connections. Thermal design and clamping is also much more difficult than with modules.
tesla500 2 months ago
@tesla500 and what is the cost difference..
as long as there is a 3-10X cost difference an enduring product probably cant be based on modules. not only cost but also supply reliability.
the modules you plan to use cost 240$ on digikey right?
that's 720 for the 3.
vs maybe 240$ in TO247. granted it is easier with modules but a factor 3 higher price does slow down proliferation.
but at that power level I suppose 500$ extra can be ok.
do you plan to sell them?
DanFrederiksen 2 months ago
all cameras should have an ethernet port ;)
BeJ95 2 months ago
if you make these cant you make 10 and seel them so we can have a high speed camera for not to much
robot797 2 months ago
@robot797
I don't think he'll be able to make these cheaper than most of the high-speed cameras on the market with similar specs. He's put a lot of time and money into this design, and I'm pretty sure he's aiming for a very robust and reliable professional product.
douro20 2 months ago
@robot797 I will make more of these, probably after at least one design spin, as I'm sure there will be bugs in this first revision. This will probably be cheaper then most other cameras with similar specs, but still not something most individuals would likely buy.
I was also thinking of making a low cost camera using the same image sensor that's taken all the high speed videos I've posted. That version would require a PC, and I might be able to get the price under $1k.
tesla500 2 months ago
oh. my. god.
Damptarmac 2 months ago
Did you do simulations for DDR3?
SMPSIRSG 2 months ago
@SMPSIRSG I can't do proper simulations because TI doesn't provide IBIS models for their parts. They basically say "follow the design rules and it will work".
tesla500 2 months ago
respect, even if in the end won't work for some reason
First2ner 2 months ago
This is excellent. You should post more updates.
hla27b 2 months ago
Wow, that is a sweet project. :)
Can't wait to see the actual casing and PCB for real. And the video result ofcourse. :D
TheCrazyInventor 2 months ago
Pretty Cool. Never used altium before as eagle lured me in with their low prices. Did you have to make most of the components (like connectors) for solid works or did you download them somewhere?
triden55 2 months ago
@triden55 Altium is good for mid range design, but is limited for high end stuff like this. A package such as Cadence Allegro would have been better for this project.
I got all the connector models from the manufacturers. They seem to be pretty good for providing models.
tesla500 2 months ago
Great insight into what you do... Do you use Nichicon or Rubicon caps for the powerboard? I'm assuming those cylindrical things on the powerboard are caps, or are they solid polymer caps?
shades2 2 months ago
@shades2 They're United Chemi-con KXJ series capacitors, 12,000 hour life. That should give the better part of 1 million km driving lifetime.
tesla500 2 months ago
@tesla500 Sounds like they'll last. Thanks. :)
shades2 2 months ago