Screen battery regulation?

ShaolinDrunkard · Post by **ShaolinDrunkard** » Fri May 27, 2005 7:41 pm

I know the snes has a 7805, but does the ps1 screen have any kind of regulator.What i would like to do is wire 2 sony 7.2V Lithium Ions to power both of them. I know the snes can take it, but is that too much for the ps1 screen. 14.4V? Im not good with adding regulators and resistors to things so Im going to use whatever batteries I can find that will power both without modification.

daguuy · Post by **daguuy** » Fri May 27, 2005 7:53 pm

does snes take 14.4v? if it has no components before the regulator, it will work with 7.2v and so will the screen. psone screen can't take more than 9v (i think). a 7808 regulator would get it down to 8v which probably isn't too much

Post by **Gamelver** » Fri May 27, 2005 9:24 pm

yeah, 8v into the psone screen is fine

....I've had 'em work up to 9v, though when I tried to hook up a 9.6NiCad battery back, the picture was all discombobulatedly discombobulated

...and that was definitely obviously without a doubt not at all very completely redundantly redundant....

nos_slived · Post by **nos_slived** » Sat May 28, 2005 12:25 pm

Gamelver wrote:yeah, 8v into the psone screen is fine ....I've had 'em work up to 9v, though when I tried to hook up a 9.6NiCad battery back, the picture was all discombobulatedly discombobulated ...and that was definitely obviously without a doubt not at all very completely redundantly redundant....

I'm confusingly confused......

SgtBowhack · Post by **SgtBowhack** » Sat May 28, 2005 5:16 pm

Yeah, two batteries isn't the greatest idea. Or at least, wire them separately if you want battery life extension: one battery for the screen and one for the system itself. 14.4v will make the 7805 hotter than hell... not what you want in a portable. If 7.2v works on the PSone screen, then you're set. Some points to think about:
- Don't give things more voltage than they need. Even if they work, it's a waste of power and source of heat.
- Try your best not to wire batteries in parallel. Rechargeable batteries (and even non-rechargeables!) will try to charge each other, which can also waste power and/or cause battery explosions. Not good.
- If you're trying to extend battery life with multiple batteries, the best way to do so is to have one set of batteries powering one portion of the circuit and another set powering another, to distribute the power, rather than trying to add it up and split it that way. While that makes sense for getting the most out of everything as a whole, you'd get benefits by separating them. For example, when your screen battery dies, you can pop that out, throw in your spare, and charge the dead battery while playing some more. Of course, in this case, I believe the SNES would take more power than the PSone screen, so the system would shut down first... not much you can do about that. But still, eventually you'd reach the situation I said above

extremesonic · Post by **extremesonic** » Sat May 28, 2005 9:04 pm

How much power does the SNES(V2) take? and how much power does PS1(with LED mod) take? I also have 2 batteries(7.2V 3300 mAh) and was wondering if its worth the trouble of setting them both up.

Turbo Tax 1.0 · Post by **Turbo Tax 1.0** » Sat May 28, 2005 9:06 pm

i have mine running off 7.2
thats 6 NI-MIs

EDIT:well had, now i need a new screen because hell knows wat happened

Foxx373 · Post by **Foxx373** » Tue May 31, 2005 1:10 am

you can use a LM317 regulator from the battery to output a nice 7.5V to the screen. Thats what I have on my 9.6V battery pack. Anything over 9V makes the screen invert colors.

rawls · Post by **rawls** » Tue May 31, 2005 12:33 pm

How about the lower limit of the PSONE screen voltage input? Specifically, can you run it off of 6.7 V?

Turbo Tax 1.0 · Post by **Turbo Tax 1.0** » Tue May 31, 2005 3:40 pm

just use a 7808 (i think) or is it 05
damn

*o* · Post by ***o*** » Tue May 31, 2005 3:42 pm

78=the series 05-24=voltage regulated to

Turbo Tax 1.0 · Post by **Turbo Tax 1.0** » Tue May 31, 2005 3:43 pm

so a 7808 would work