[Arm-netbook] EOMA68 Power Specifications

[peter green]

On 30/08/16 23:11, Luke Kenneth Casson Leighton wrote:
> ---
> crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68
>
>
> On Tue, Aug 30, 2016 at 10:39 PM, Joseph Honold<mozzwald at gmail.com>  wrote:
>
>
>    
>> Seems like there should be a minimum power requirement that all cpu cards and devices must meet.
>>      
>   okay - so you used the word "devices" which is not part of EOMA68
> terminology.  sorry i missed this, so didn't understand the question.
>
>   *from the perspective of the EOMA68 Cards* the *MAXIMUM* that they
> are permitted to use is 1.0A @ 5.0v
>
>   therefore...
>
>   *from the perspective of EOMA68 ***HOUSINGS*** .... * the *MINIMUM*
> that they must provide is: 1.0A @ 5.0v
>
>   above exactly 1.0A @ 5.0v, housings are ***REQUIRED*** to cut power
> without warning.
>    
This seems like a broken spec to me. Nothing in electronics is exact, so 
a sane spec should have a reasonable margin between the maximum current 
a card is allowed to draw and the point at which overcurrent protection 
is required to kick in.