Re: more X-rays Silvertel PoE Supply

"john larkin" <JL@gct.com> wrote in message news:8setfj16rrdda2uhegqfs50d8au0s53ho6@4ax.com...

On Wed, 2 Oct 2024 23:52:38 -0400, "Edward Rawde"
<invalid@invalid.invalid> wrote:
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"john larkin" <JL@gct.com> wrote in message news:1f2sfj9tgq6016t52f9hdr22cr8kcq98tv@4ax.com...

On Wed, 2 Oct 2024 22:54:59 -0400, "Edward Rawde"
<invalid@invalid.invalid> wrote:
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"john larkin" <JL@gct.com> wrote in message news:tvvrfj57ufu4n1c5uq4hnpmjd9hhr0rukl@4ax.com...

On Wed, 2 Oct 2024 19:02:33 -0400, "Edward Rawde"
<invalid@invalid.invalid> wrote:
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"john larkin" <jl@glen--canyon.com> wrote in message news:kgirfj1614cfkvknad7dl2igqcb2qi5tq7@4ax.com...

On Wed, 2 Oct 2024 17:00:52 -0400, "Edward Rawde"
<invalid@invalid.invalid> wrote:
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"john larkin" <jl@glen--canyon.com> wrote in message news:kqbrfjhrd5oto8ud8vm0395p6oo8eipige@4ax.com...

On Wed, 2 Oct 2024 11:46:21 -0400, "Edward Rawde"
<invalid@invalid.invalid> wrote:
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"john larkin" <JL@gct.com> wrote in message news:v6mqfjd93ib6q8j7d7ontsaouidieh5b2u@4ax.com...

On Wed, 02 Oct 2024 06:22:43 GMT, Jan Panteltje <alien@comet.invalid>
wrote:
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On a sunny day (Tue, 01 Oct 2024 14:16:09 -0700) it happened john larkin
<jl@glen--canyon.com> wrote in <tipofjdtie76lbtd7lc2ger5uo7sglq3p5@4ax.com>:
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https://www.dropbox.com/scl/fo/s6wfz2xtdyd6tv32tq3fp/AET6J4oF84HG2hJMeST6F-E?rlkey=acyvuv4z0h2kg0x97azbed8uo&dl=0

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...

Actually I'm just trying to figure out what you're trying to do with PoE.

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Create a product line of aerospace instrumentation, small boxes that
can be placed right next to loads or motors or sensors and need only a
cat5 cable for power and computer interface.
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The current practice is to put a PXIe or VME crate in a rack and
interface it to a computer (maybe $10K) and then buy modules and then
design and buy fabulously expensive custom cables out to the field.
Tha cables can cost more than the things that they connect. And rack
space is often very valuable.

USB4 is likely to become the only wired interface needed on most future devices for short distance communication.
Almost 250W power capability too if you believe this page:
https://en.wikipedia.org/wiki/USB4
But other sources say up to 100W.
You'll still need an RJ45 connector and maybe optional wart connector of course.
And anything else a specialist application needs.

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The power supply module is just the test bed for the first box in the
family. Most modules would only need a few watts, but this one allows
some thermal characterization too.
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We're about to go public with the concept. Wanna see the intro?

You mean you've uploaded it but haven't posted the dropbox link yet?

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Ag7100 will turn 24V into isolated 48V

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That's not a PoE pickoff. I guess we could get 24 volts from PoE and
boost that up to 48, maybe with some different brick, but the hassle
and cost accumulate.

Non isolated 48V is easy but if you want it isolated then I think it's either a custom design or two modules.
Or one module and one custom design.

If a user needs more than 20 volts output or so,
they may have to buy a 48v wart. Higher voltage warts are common
nowadays.
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but I don't see why you would want to use PoE to power equipment needing 48V.

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Customers might appreciate it and buy some.
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