Ac/dc Power Supply

[Orkie]

For a geek you sure know nothing about power

Anyway it should work just fine, amps is the maximum current, a device won't take any more current than it needs (now overvoltage is a different thing entirely). Just set it to 3v.

Sorry, I don't quite see what you mean? I am well aware of the fact that it only draws what current is 'needed' but a 300mA power supply simply isn't enough. You need 1A to be sure it will work properly.

 

[Squidge]

No, you need a 1A power supply.

For a geek you sure know nothing about power

Anyway it should work just fine, amps is the maximum current, a device won't take any more current than it needs (now overvoltage is a different thing entirely). Just set it to 3v.


You don't seem to know anything either

The GP2X uses half an amp (that's 0.5A, or 500mA) just loading the kernel, so a 300mA adaptor is no use whatsoever. Since it can use far more when the BoB and/or TV out is enabled, 2A is the ideal, and 1A is the minimum.

Also, try and get a switched mode PSU rather than a Linear one, unless you like to use it as a foot warmer (You can tell the difference quite easily by picking it up. Linear ones get hot and are quite heavy. Switched mode ones run a lot cooler and are a lot lighter, sometimes smaller too).

 

[mick_aka]

I have an early model GP2X and have been running a 4.5v 500mA supply since I have had it!

(supply is made by philex, found in my garage)

Never had any problems, done numerous firmware upgrades off it etc.

 

[Squidge]

Well, it is the norm that with higher voltage, the current will drop, but the average load will remain the same.

I am suprised you decided to shove a 4.5V adaptor up a 3.3V device however! Hopefully it's a regulated adaptor.

 

[mick_aka]

No idea, just an old thing I had laying around, used for 18 months now with no problems at all.

 

[Daid]

I'm using an ATX power supply.
It gives 14A for 3.3V, I guess that's more then enough. (No, I didn't forget the dot)
Works great and I don't think I'll have any problems hooking up the bob cradle to it (But that has to wait till I actualy get one)

 

[Squidge]

Hopefully you also have something else connected to that ATX power supply, as otherwise they are usually quite poor unless they have a half-decent load connected to them (as in, a harddrive at least).