Sujet : Re: UCC33420 dc/dc converter eval
De : jl (at) *nospam* glen--canyon.com (john larkin)
Groupes : sci.electronics.designDate : 11. Apr 2025, 16:12:32
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <robivjlb5pfnffq8n0h7n6ul0ihumc1k37@4ax.com>
References : 1 2 3 4 5 6 7 8
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On Fri, 11 Apr 2025 23:31:24 +1000, Chris Jones
<
lugnut808@spam.yahoo.com> wrote:
On 11/04/2025 3:56 am, john larkin wrote:
The PVs are affordable and of course marvelously quiet, but they max
out typically below 100 uA. That gets tricky.
>
You can get more powerful ones for "power over fibre" with a laser at
the other end. I vaguely remember there being an example in AOE3.
I would love such a power optocoupler, if it were a reasonable size
and price.
There must be a market for a really quiet isolated dc/dc converter.
Maybe a sine wave thing.
People go spread-spectrum to pass FCC and CE EMI tests, but that
doesn't change the actual voltage noise at all.
https://www.dropbox.com/scl/fi/uujqctqpsuwtl95h6c2n3/20250409_144531.jpg?rlkey=oxxgyvni8ibti5zyfepf5qydy&raw=1