Sujet : Re: tiny dc/dc
De : klauskvik (at) *nospam* hotmail.com (Klaus Kragelund)
Groupes : sci.electronics.designDate : 04. Apr 2025, 22:48:53
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <vspk45$gubf$1@dont-email.me>
References : 1 2 3
User-Agent : Mozilla Thunderbird
On 31-03-2025 01:37, john larkin wrote:
On 30 Mar 2025 21:43:28 GMT, Uwe Bonnes
<bon@hertz.ikp.physik.tu-darmstadt.de> wrote:
john larkin <jl@glen--canyon.com> wrote:
Check out UCC33420.
>
It's a tiny cheap isolated dc/dc converter. It switches at 64 MHz!
>
>
I guess Murata NXJ switches at a similar frequency!
About 100 KHz.
https://www.dropbox.com/scl/fo/w90gg474w9h0wsqkbpd9e/AC8Oh-LB9La9PcvIGGOYWtg?rlkey=agwx067u5vk6z04ir2ktp4dy0&dl=0
That vertical relative to the PCB winding structure is really nice. Solved problems with clearances.
If only I could have a PCB manufactorer do that, but maybe it's out there.
Murata is 3.11mm PCB. Could be done with 2 1.6mm PCBs, and pocket milling, turned over, plopping in a ferrite, glue, and solder.
But, do they make the vias after the ferrite has been sandwiched?
tiny dc/dc
Re: tiny dc/dc