ASRock "App Charger" faster iPod/devices charging?

[phait]

Anyone used this and can say anything good/bad about it? http://www.asrock.com/Feature/AppCharger/index.asp

 

[RadiclDreamer]

Same thing on my gigabyte, just charges your device as fast as a wall outlet

 

[phait]

Yeah I've got a wall adapter so no real use for me, just was curious to validity of claims 🙂

 

[Zap]

Basically it allows for more than the 500mA or whatever maximum current that the USB standard calls for.

 

[taltamir]

I thought 500mA was the minimum, not maximum, that the USB3 standard calls for.
In electric cabling for the house, the thicker the cable, the more Amps it can handle without being a fire hazard. Mobos use traces instead of cables but its pretty much the same.
I imagine that there is some circuitry that limits the output and it has been modified to allow more output on those mobos.

And yes, gigabyte offers the same thing.
I really don't see the need to charge via your PC though.

 

[RadiclDreamer]

I thought 500mA was the minimum, not maximum, that the USB3 standard calls for.
In electric cabling for the house, the thicker the cable, the more Amps it can handle without being a fire hazard. Mobos use traces instead of cables but its pretty much the same.
I imagine that there is some circuitry that limits the output and it has been modified to allow more output on those mobos.

And yes, gigabyte offers the same thing.
I really don't see the need to charge via your PC though.

Comes in handy at times, but not something i see as a feature, definitely not a selling point

 

[CZroe]

I thought 500mA was the minimum, not maximum, that the USB3 standard calls for.
In electric cabling for the house, the thicker the cable, the more Amps it can handle without being a fire hazard. Mobos use traces instead of cables but its pretty much the same.
I imagine that there is some circuitry that limits the output and it has been modified to allow more output on those mobos.

And yes, gigabyte offers the same thing.
I really don't see the need to charge via your PC though.

No... there are unpowered ports, as we all know. The spec for powered ports is 500mA (0.5A), which is the specification, not a minimum or maximum (I'm sure engineering docs list the tolerance). Some devices, namely, USB-powered optical drives and HDDs, violate that spec and some USB ports allow them to do so. Some of them have order forms for secondary USB power cables or "Y" cables in case your PC doesn't give it enough wiggle room.

 

[taltamir]

No... there are unpowered ports, as we all know. The spec for powered ports is 500mA (0.5A), which is the specification, not a minimum or maximum (I'm sure engineering docs list the tolerance). Some devices, namely, USB-powered optical drives and HDDs, violate that spec and some USB ports allow them to do so. Some of them have order forms for secondary USB power cables or "Y" cables in case your PC doesn't give it enough wiggle room.

My point was that my admittedly limited knowledge of electrical engineering tells me that power circuitry specs specify a target amperage which is:
1. Not the maximum.
2. that while the spec expects you to stick exactly to the figure specified not deviating up or down, it is entirely possible to go way over said value (which makes it a minimum) without breaking any compatibility. (ex: every motherboard that allows any type of overclocking, and house electrical wiring).

it is naturally important though to only deliver extra power to devices that are built to handle it. I admittedly have absolutely no clue how in the world that magic bit works but it seems that it does. And while I am curious to learn (I know where to find the info, thanks) it will take time I don't currently have. (I got other things to study)

 

[CZroe]

A standard "Switching Power Supply," like the ATX one in your PC can do this. I'm not sure if it's the same concept. It seems like overcurrent regulation should be in the device but SPS is described as if it is the PSU that allocates more current/Amps to the rails that demand it.

 

[Emulex]

a car has alot more 5V amps than you'll ever get out of a tiny brick. 12V @ 15-20amps on the cig lighter. if you hard wire it you could probably get 40+ amps which would convert down to more amps @ 5v.

how fast do you want to charge before it blows up 🙂