High-speed camera and Inverter update
Uploader Comments (tesla500)
All Comments (25)
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Well done
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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!!!
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Wow
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@tesla500 Sounds like they'll last. Thanks. :)
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@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?
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@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".
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@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.
What is the software for the PCB layout?
douro20 1 month 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 1 month ago
nice. did you consider TO247 IGBTs instead of modules for cost?
DanFrederiksen 1 month 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 1 month 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 1 month 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 1 month ago