Hey folks,
I have been working on my 3rd portable now, a portable Sega Saturn I finally scored some extra consoles of Ebay and I have all the parts I need for the system. I think this will be one of the first Saturn portables...has anyone made one before? The real trick is getting 5v at 3A (using a Model 1 MK-80000 Saturn) and the best way to do it is using an LM1085CT-5 voltage regulator which I bought off Digikey and works great. =) Here's what the final product will include:
'normal size' model 1 Saturn with built in:
-4 in 1 Action Replay Plus
-JP/EUR/US mods
-Video CD Card
-Li-poly sells (about a 2 hour built in battery life...maybe longer)
I will also likely find further additions to include since I am going to go 'all out' on this portable..
If anyone would be interested in info on how to make your own portable Saturn let me know! =)
If you want a suggestion try setting up 3 7805 to the battery. It should work without any problem.
I'll be interested in how you Saturn turns out, I'd like to see what the movies look like on it.
P.S. Gannon or Black Six, can you move this to the 32bit forum.
vskid wrote:Nerd = likes school, does all their homework, dies if they don't get 100% on every assignment
Geek = likes technology, dies if the power goes out and his UPS dies too
if u had it just 32 bit instead of playstation 1/ 32 bit it would confuse the n00bs and people who don't know a playstation is 32 bit and they would post in the wrong forum
"sticks and stones will break my bones, but words will cause permanent physcological damage"
eh, whatever.
Anyway, most 7805s won't output 3A...in fact I have never found a single one that does. The ones built in the N64, PSOne Scree, Sega Genesis, etc. certainly don't...
Anyway the LM1085 is basically the same as a 7805 outputing 3A except it only requires 6.5v and is limited to 20v. It's a nice little chip but I don't like how it's heatsinking end actually is the output voltage and not ground...makes it hard to heatsink.
I would rather use a DC-DC converter but I couldn't find one that took 7.5v and outputs 5v at 3A.
As for the system, it's probably going to take a couple months to finish since I'm making it my top priority to do my best work with it (lik my CDX Ultima). I'm not going to merely 'make it portable' like the PSTwo. I want to make it do anything and everything =) Also, if Ben and the others can help me figure out this Radica Genesis thing, I could possibly build in a Genesis into the system as well. Basically I'm keeping the original Saturn case which makes the unit uite large so I want to use all the space I can inside. That's why I'm building in the batteries., VCD card, and 4-in-1 memory and RAM expansion cart. I have the controller nearly completed know and I wrote up a schematic tracing ever line of the IC (like the Genesis controller IC on my webpage). I was going to add it but my computer brok last week and I'll have to put it on my site at another time.
Yes it will definitely have a mod chip...I forgot to mention that. And the Saturn will be even lighter than the original one on the marker because I'm going to take out that horribly heavy metal shielding and deisgn a superior heatsink.
I finally scored some extra consoles of Ebay and I have all the parts I need for the system. I think this will be one of the first Saturn portables...has anyone made one before? The real trick is getting 5v at 3A (using a Model 1 MK-80000 Saturn) and the best way to do it is using an LM1085CT-5 voltage regulator which I bought off Digikey and works great. =) Here's what the final product will include:
