[ltp] T61 power connector (male part): where to get?

[James Knott]

Nils Faerber wrote:
> Yves Dorfsman schrieb:
>   
>> Richard Neill wrote:
>>     
>>> P.S. Does anyone know why the new supplies are higher voltage than the
>>> older ones? I thought that the newer CPUs ran on *lower* voltages.
>>>       
>> I don't know for a fact, but I have assumed that since they are drawing
>> more power (overall wattage), bumping up the voltage enabled them not to
>> increase the size of the cable.
>>     
>
> In theory this could be a reason but I strongly doubt it - the current
> is not that high that this would make big difference.
>
> I think this rather to be another "make it simpler and cheaper"
> decision. It is easier to design switching regulators if your target
> voltage compared to your input voltage is lower. So setting up a
> regulator for 24V -> 5V is much easier than 7V -> 5V (and especially
> keep the output voltage nicely even without ripple or drops even under
> higher load).
>
>   
The voltage difference isn't significant with switching supplies, but
lower supply voltage tends to decrease efficiency.