Re: Re: [OT] iPad query...

[Peter + Jane <pandj.munnoch@xxxxxxxxxxxxxx>]

Hi Dom
In original thread it was stated that a powered hub limits to usb 500mA
spec.
The robust answer seemed to be to have a box /
lead where the usb in was split into power and
data with a usb plug for each...one to computer
for data other to charger. Easy to do (black and
red = power, green and white = data IIR my usb colour codes).
I was hoping someone had tackled what must be a
common issue and made a neat solution / saved me a job!!
Rgds
Peter

At 01:05 11/03/2011, you wrote:
>
>
>Hmmmm,
>
>I think you may even be able to take a powered
>hub that uses a usb connection for power, also
>works non-powered, and power it via the Apple
>power adapter. My thoughts are that the 5/12v
>rails will be pass-through when using an
>external power - of course, running 2A through a
>hub that expects less may not be good.
>
>Also worth experimenting as:
><http://www.tuaw.com/2010/04/08/confirmed-not-charging-ipad-does-recharge/>http://www.tuaw.com/2010/04/08/confirmed-not-charging-ipad-does-recharge/
>suggest/confirm that at least when idle, it stills charges on 500ma USB
ports.
>
>Dom
>--- In
><mailto:ukha_d%40yahoogroups.com>ukha_d@xxxxxxx,
>Peter + Jane <pandj.munnoch@...> wrote:
> >
> > Hi
> > Back end of last year there was a long thread
> re sync-ing and charging iPads.
> > The basis was that an iPad needs 2 amps and usb delivers just
500mA.
> > Someone (Dave Mclaughlin?) was looking at
> > producing a splitter (charge from charger / data from usb).
> > Did this ever happen (Phil Harris...did you
> > resolve the problem this or any other way?)
> > Is there anything on the market?
> > Thanks
> > Peter (whose iPad using wife still mutters.........)
> >
> >
> > At 11:14 11/10/2010, you wrote:
> > >
> > >
> > >Hi Phil
> > >
> > >Download this document.
> > >
> > ><<http://www.embeddedcomputer.co.uk/iPadCharg
> eSyncAdaptor.pdf>http://www.embeddedcomputer.co.uk/iPadChargeSyncAdaptor.pdf>http://www.embeddedcomputer.co.uk/iPadChargeSyncAdaptor.pdf
> > >
> > >See if either of these will work. I have
> requested a quote for the PCB's so
> > >once I get this back I can tell you the cost to make this.
> > >
> > >By the way, another option instead of the
> PLUG on the BOX, is a short flying
> > >lead with a cable relief into the box. A bit like the HUB's
you can buy.
> > >
> > >
> > >Cheers,
> > >Dave.
> > >
> > >From:
> > ><mailto:ukha_d%40yahoogroups.com><mailto:ukha
> _d%40yahoogroups.com>ukha_d@xxxxxxx
> > >[mailto:ukha_d@xxxxxxx] On Behalf Of
> > >Phillip Harris
> > >Sent: 11 October 2010 00:13
> > >To:
> <mailto:ukha_d%40yahoogroups.com><mailto:ukha_d%40yahoogroups.com>ukha_d@xxxxxxx
> > >Subject: Re: [ukha_d] [OT] iPad query...
> > >
> > >
> > >
> > >That would work - the only reason I was thinking about having
2 x Type B
> > >sockets for power and data in and a single
> Type A socket for combined power
> > >and data out was simply so that the unit would be more
"universal" as a
> > >dangly dongle...
> > >
> > >Phil
> > >
> > >[Non-text portions of this message have been removed]
> > >
> > >
> >
> >
> > [Non-text portions of this message have been removed]
> >
>
>


[Non-text portions of this message have been removed]



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