Hi Bob,
That's what I observed as well with my bench power supply - as I dropped
the voltage, the current would increase and wattage would remain
relatively constant.
I don't recall the exact point at which the board will sort of konk-out
.. but I seem to recall the threshold is much above 6V. Also I noted
that once the board was 'up' I was able to lower the voltage below the
threshold that permitted it to boot - I think that this is probably
pretty normal behaviour from the board's standpoint. But when setting a
low-water voltage point it's probably best to be certain that that level
permits booting.
--Andrew
On 2015-10-22 5:49 AM, Bob Bishop wrote:
HI,
On 22 Oct 2015, at 01:45, Greg Troxel <g...@lexort.com> wrote:
I have a net5501 (with 40G PATA spinning disk) that I run on 12V, from
several AGM batteries and a float supply. I find that it draws 0.5A at
12-13V, which is about 6W. However, if I fed it 6V instead, it would
draw the same 0.5A and be about 3W.
Nope. The switching regulator isn’t very lossy so it would draw about 1A at 6V.
Try it.
--
Bob Bishop
r...@gid.co.uk
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