Are there any net-adapters to USB?

[ruxma]

I have NW-e405. The only disadvantage for me is that you can charge it only with USB of a computer. Theoretically I think it would be possible to have an adapter to give power to the USB contact in device. The voltage and which pins that are for the power is standard for computers, so it would be possible, I think. Has anybody seen if there is such a thing on market?

Georg

[Ishiyoshi]

There's the Sony USB AC Adaptor | AC-U50A. For pictures, check out my NW-A608SI Pictorial (pictures toward the end of the pictorial)

[abcd9146]

there are these things in the market. i bought two of these things in hong kong, but i havent tried to see if they worked yet, but they look exactly like the ones that came with the sony NW-A608-SI (see pics in link posted above).

the ones which i bought also have the same voltage:

input: AC100V-240V 50Hz

output: DC5V, 500mA

but there are also ones which have different out put voltages: i have seen 200mA, and also 1000mA, could someone tell me what would happen if i were to use one of these instead?

[Guest Stuge]

If you use 200mA adapter then your device may not be charged well but if you use 1000mA with your device than your device might not work at all .

[ruxma]

If you use 200mA adapter then your device may not be charged well but if you use 1000mA with your device than your device might not work at all .

I think you are a little wrong here. 1000mA is how much ampere the charger can give as maximum. How much it really gives is depending on resistance in your device according to ohm's law. I am rather sure that 200 mA is enough for this little device. If it is not enough then the charger can be broken, not mp3 player.

I think I will buy the charger. It is cheap and it could be possible that you not always have a computer, even if it is improbable

Georg

[Guest Stuge]

If you think i`m wrong use that charger (At your own risk ) then tell what happens .

[MDX-400]

I think you are a little wrong here. 1000mA is how much ampere the charger can give as maximum. How much it really gives is depending on resistance in your device according to ohm's law. I am rather sure that 200 mA is enough for this little device. If it is not enough then the charger can be broken, not mp3 player.

Yes, that's correct; the 1000mA amp model is the maximum current the adapter is capable of outputting safely. If the equipment connected to it draws less current then you don't have to worry.

However note that some (particularly non-switching, so with a USB thing you're probably safe anyway) adapters the output voltage is such that with lower currents being drawn the output voltage is more because the adapter isn't under as much load. As the current draw increases the voltage drops. Again, however I think this is more a problem with traditional AC adapters and not newer switching type ones. I'm pretty sure any USB type power supply would be switching; furthermore it would more likely have its voltage more tightly regulated since USB requires a more strict 5V than other applications.