[Arm-netbook] Embedded Open Modular Architecture

[Bari Ari]

On 09/05/2011 04:49 PM, Luke Kenneth Casson Leighton wrote:
>
> for example i originally thought of doing 2x 5.0v and 4x 3.3v pins,
> but then i realised that, actually, that's a hell of a lot of power!
> it's 5 watt plus 6.6 watts, and there's no way that you can dissipate
> that much heat!  so, 3.3v LDO ICs being damn cheap, i figured it's ok
> to expect 5.0v @ 1amp and to do conversions to all power levels
> required, on the PCMCIA card itself (PCMCIA pins are 0.5A each).
>
>
Moving that much heat away from a board of this type is not a problem, 
even without fans.

Enclosures and thermal management seem to be considered 'black arts'. I 
guess they don't teach EE's about this since it helps products die 
around the time the warranty is up.

-Bari