Connect PSOne LCD Screen to PC

skitchin · 02-06-2005, 07:41 AM

Hi, new to the forums. I want to hook a PSOne LCD screen to my PC. The problem is I don't know how I should regulate the power to 7.5v. I'm guessing some kind of DC-DC converter that will do 12VDC->7.5VDC. Anyone have suggestions on what part(s) to use or any other solutions. Thanks.

Osiris · 02-06-2005, 08:54 AM

How are you powering your PC? I think that carnetix regulators has an extra plug-in that may do the job for you. Someone verify or correct me on that.

skitchin · 02-07-2005, 12:32 AM

Pretend I just had the 5v and 12v source given by the power supply. Simply because I do

.

MatrixPC · 02-07-2005, 09:27 AM

Go to any game store and pick up one of those cig power adapter for PSOne. Otherwise buy one of those universal/multiple output from wallmart/radiosuck and well game store.

ktritz · 02-08-2005, 03:26 PM

Well, if you could put +12 on the positive and +5 on the negative for 7V...

Dunno if that would actually work.

mattress · 02-09-2005, 12:56 PM

+12v for postive and +5v for negative would give you 7v of power, I would assume that would work

(from a standard molex connector in a computer, 12v is yellow, 5v is red)

Tred · 02-09-2005, 11:58 PM

couldnt u use a resistor? i think its ohms law. volts/amp?

skitchin · 02-10-2005, 10:37 PM

Um, are you sure about the 7v thing? That...doesn't sound like it'd work. Sounds more like it'd short out. I'll try it anyhow because my lcd screen appears to be broken.

skitchin · 02-10-2005, 10:58 PM

Yeh, I didn't do it with the LCD screen, and just as I thought, it created a short(NOTHING FRIED

)

mattress · 02-11-2005, 09:06 AM

how did it create a short? it's not supposed to. the only thing that happens is the voltage drops to 7 volts. that's an easy "fan speed hack" if you want to quiet the fans in your computer down, instead of running at their full 12 volts.

yellow wire is 12v, red wire is 5v (from a molex connector coming from the computers PSU)

you should be able to hook up the 12v where the positive should go to the psone, and then the 5v wire should go to where the negative should go to the psone screen.

no shorts, just the difference in volts. I don't know if this would power the screen, but it does not create a short. you can try googling 7v fan speed hack or something to get more info

Ill1 · 02-11-2005, 09:36 AM

The 7 volt thing should work as long as there is no other reference to ground (case, etc.). I would suggest testing on some other non-expensive equipment first, because I have never tried with anything other than a couple of ic chips.

Nobias · 02-11-2005, 09:45 AM

Get a voltage regulator ic and build a curcuit.

xtra · 02-12-2005, 12:16 PM

you will fry ur lcd when you connect to your computer, because the psone use the same ground.

just buy the offcial car adaptor, i bought mine for $10 in bestbuy

Evil.Commando · 02-13-2005, 11:03 PM

http://www.eidusa.com/Electronics_Voltage_Regulator.htm

This may help. Built one my self. except for 5v. you dont need the extra caps just the actual IC the caps are for power smoothing.

TheLlama · 02-14-2005, 01:37 PM

Quote: Originally Posted by mattress

+12v for postive and +5v for negative would give you 7v of power, I would assume that would work

(from a standard molex connector in a computer, 12v is yellow, 5v is red)

I would not do this. Although that makes sense, when you connect it to your computer, the data signals will be off by 5v (since the computer has a 0v GND and the display has a 5v GND)

If it wasn't for the two devices being connected, I'd say go for it

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