Power Adapter Diy

[Redsandro]

Hi,

I want to make my own AC adapter and/or car power supply. There's some nice documentation in the wiki, and I can handle the technical part just fine. However, I cannot find any type number or size number/specification for the plug/connector. Can anyone supply this info? There are so many connectors, I cannot guess-and-order.

 

[Hard Rock]

Hi,

I want to make my own AC adapter and/or car power supply. There's some nice documentation in the wiki, and I can handle the technical part just fine. However, I cannot find any type number or size number/specification for the plug/connector. Can anyone supply this info? There are so many connectors, I cannot guess-and-order.

The wiki has some helpful information:
http://wiki.gp2x.org/wiki/Power_adapter

 

[palmertech]

I just used a gameboy color power adaptor with the polarity switched. I must have gotten lucky with one that supplys over 1amp. Hooray!

 

[Redsandro]

The wiki has some helpful information:
http://wiki.gp2x.org/wiki/Power_adapter


Thanks!

I regret to say that I visited that wiki prior to posting but somehow totally missed the line that sais the plug is:
CUI INC Part #PP-012

 

[Redsandro]

btw, I found an adapter that does 3,0 or 4,2 volts at 2500 mA.
I read in different topics about 3,6 or 3,7 volts.. so any thoughts on 3,0 volts for the gp2x?

 

[Squidge]

I read in different topics about 3,6 or 3,7 volts.. so any thoughts on 3,0 volts for the gp2x?

is fine if regulated and high enough amperage (2.5A is ok).

 

[Redsandro]

This term 'regulated' comes up a lot (on search) and my brain has a bug where I don't understand what it means when speaking of power adapters. Not even using a dictionary.

I am GUESSING that it is similar to direct current (DC as opposed to AC), so would I be fired if I made this guess working as a salesman?

This 3V 2.5A adapter is a 'digital' adapter meant for digital camera's and video camera's. Would cost me 20 euro's. (How do I get the AltGr+5 (eurosign) working in Ubuntu?) Since that's more than free, I'd hate to see the gp2x rebooting all the time \

I saw it for 12 euros on ebay but with 8 euros shipment, I might as well piss in my own toilet if you know what I mean.

 

[sam fisher]

I believe that regulation means that the voltage is uniform and kept within a strict range around the output value rather than spiking about up and down.

 

[Squidge]

An unregulated 3V adaptor can output 9V, which is bad for your GP2X. The voltage typically comes down with load.

A regulated adaptor will attempt to keep the voltage around the 3V range more accurately.

 

[Redsandro]

Ah thanks. In that case I didn't know there were unregulated adapters out there. I will verify before I purchase!

 

[unclechicken]

Got mine from Argos (a shop in the UK).

Masterplug AC/DC Mains Adaptor

2500mA output, the smallest adaptor jack fits the GP2X.

Was on offer when I bought it at £7.50, but is now £14.99

http://www.argos.co.uk/static/Product/part...EMASTERPLUG.htm

And this adaptor put at the 3V switch on the side works fine, playing movies, MAME, games, all seems to work OK.

 

[Redsandro]

The link is 'temporarily closed', but from the sounds of it, it's sort of similar to the one I found.

I was thinking of maybe splitting the end to provide additional power for an USB hub. I know 3v is not enough in theory, but I read about this guy building a hack in his F100 to get powered USB off of the batteries. If that works, doing the same with an adapter should also work I think.

 

[Redsandro]

I got the one I was talking about. Maybe it's the same as you. But my problem is that the tips aren't reversable. I thought this would be possible (changing ground-sleeved to ground-centered) but it will only fit one way.

What would be a clean way to fix this? I would prefer a way that is reversable in case I need to power something ground-sleeved. I thought about these electrical wireconnectors (with two screws) you find around the house and just chop the cable. I think while chopping the cable is unavoidable, the wireconnectors are kind of blunt.

 

[Redsandro]

15 years ago I played with Märklin electric minirailway trains or whatever you call them. I remember those miniplugs, very handy for wiring all lighting and rails and stuff. So I bought a couple of those. Apparently Märklin has new ones I don't like, so I bought the old-fasion ones. I put 'em in between somewhere in the cable to be able to swap 'em. Works perfectly!

But now that it works, I have to say:

What idiot moron over at GPH decided to put DC input on the side of the device!?
Sometimes I wonder if those people use their device themselves. I think not, otherwise they would have fixed this, put in a powerled that doesn't blind your eyes, put in a normal stylus, use normal touch calibration and have a firmware menu that isn't sucky to begin with.