[Arm-netbook] eoma68 router pcb

Philip Hands phil at hands.com
Thu Nov 14 02:02:23 GMT 2013


"luke.leighton" <luke.leighton at gmail.com> writes:

> On Thu, Nov 14, 2013 at 12:54 AM, Christopher Havel
> <laserhawk64 at gmail.com> wrote:
>> On 11/13/2013 7:34 PM, luke.leighton wrote:
>>>
>>> On Wed, Nov 13, 2013 at 11:16 PM, luke.leighton <luke.leighton at gmail.com>
>>> wrote:
>>>>
>>>> http://rhombus-tech.net/community_ideas/router/news/
>>>>
>>>> uh... am i reading this right - that this router design could be up to
>>>> 20 watts??  4x USB2 @ 500mA (10W), 1x RTL8366 (3W) and an EOMA68 CPU
>>>> Card (4W).  That's.... a hell of a lot.
>>>>
>>>> anyone any experience at dealing with that much power on small boards
>>>> (4 amp @ 5V) ?
>>>
>>>   LM1084?  any guidance on PCB layout anyone aware of?
>>>
>>>   l.
>>>
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>>
>> Hey guys... why not just use a 5v 4a external laptop-style brick...?
>
>  still have to have a power regulator chris.  yes definitely the
> 5.5-2.1mm jack, the smaller connector i was thinking of won't take the
> current.

Possibly a foolish thought, but how about allowing for multiple power
supplies, preferably with some way of detecting which one broke so one
could then send an email about it before the other one packs up?

Also, or perhaps instead, PoE? (although you'll struggle to get enough
power through that -- 802.3at (Type 2) is able to deliver up to 22.5W)

Cheers, Phil.
-- 
|)|  Philip Hands [+44 (0)20 8530 9560]    http://www.hands.com/
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