[Coco] USB cable powered CoCo 3 ???

[jdaggett at gate.net]

On 26 May 2010 at 13:12, Roger Taylor wrote:

> At 01:05 PM 5/26/2010, you wrote:
> >On 26 May 2010 at 11:38, Roger Taylor wrote:
> >
> > > So.... my question is: what did I stumble across here and has anyone
> > > had any experience with powering the CoCo through the expansion slot,
> > > and if so, what are the power requirements and how stable is it?
> >
> >
> >Roger
> >
> >be very careful, very careful.  The USB port on a PC will supply a 
> >current of 500 mA max
> >before the fuse blows.
> >
> >Also I seem toremember that some USB hosts will supply 3.3 VDC and not 5 VDC.
> >
> >james
> 
> 
> 
> I'm not toying with it right now.  I just observed shortly that the 
> CoCo does in fact, come on.  Project over.
> 
> 

No problem. Powering off of USB is fine for low power peripheral devices. Not a lot more.

james