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Low power (<3W) 230VAC to 24VDC converter?

Started by Robert Latest October 29, 2022
Looking for something that solders into a PCB like the ubiquitous cheap DC/DC
modules, but AC to DC with galvanic insulation. Couldn't find any but maybe
didn't look right.
l&oslash;rdag den 29. oktober 2022 kl. 20.05.31 UTC+2 skrev Robert Latest:
> Looking for something that solders into a PCB like the ubiquitous cheap DC/DC > modules, but AC to DC with galvanic insulation. Couldn't find any but maybe > didn't look right.
https://www.digikey.com/en/products/detail/mean-well-usa-inc/IRM-03-24/7704638
On 29 Oct 2022 18:05:24 GMT, Robert Latest <boblatest@yahoo.com>
wrote:

>Looking for something that solders into a PCB like the ubiquitous cheap DC/DC >modules, but AC to DC with galvanic insulation. Couldn't find any but maybe >didn't look right.
Try Mouser for AC Input Power Module https://www.mouser.com/ProductDetail/TRACO-Power/TMPM-10124?qs=ckJk83FOD0UDEW2waOcxww%3D%3D
Robert Latest <boblatest@yahoo.com> wrote:
> Looking for something that solders into a PCB like the ubiquitous cheap DC/DC > modules, but AC to DC with galvanic insulation. Couldn't find any but maybe > didn't look right.
Do you a favour and use a exernal wall wart. No need for yoor PCB to follow the needed security rules and checks -- Uwe Bonnes bon@elektron.ikp.physik.tu-darmstadt.de Institut fuer Kernphysik Schlossgartenstrasse 9 64289 Darmstadt --------- Tel. 06151 1623569 ------- Fax. 06151 1623305 ---------
On Sat, 29 Oct 2022 11:20:00 -0700 (PDT), Lasse Langwadt Christensen
<langwadt@fonz.dk> wrote:

>l&#4294967295;rdag den 29. oktober 2022 kl. 20.05.31 UTC+2 skrev Robert Latest: >> Looking for something that solders into a PCB like the ubiquitous cheap DC/DC >> modules, but AC to DC with galvanic insulation. Couldn't find any but maybe >> didn't look right. > >https://www.digikey.com/en/products/detail/mean-well-usa-inc/IRM-03-24/7704638
It is a cool idea, to get a little DC to let one start up a big box with small cold switches or a little management cpu or something.
On Saturday, October 29, 2022 at 2:59:20 PM UTC-4, Uwe Bonnes wrote:
> Robert Latest <bobl...@yahoo.com> wrote: > > Looking for something that solders into a PCB like the ubiquitous cheap DC/DC > > modules, but AC to DC with galvanic insulation. Couldn't find any but maybe > > didn't look right. > Do you a favour and use a exernal wall wart. No need for yoor PCB to > follow the needed security rules and checks
That shouldn't be a big deal to add a module. I believe there is a spacing which should be easy to implement. Are you talking about some paperwork that is needed? -- Rick C. - Get 1,000 miles of free Supercharging - Tesla referral code - https://ts.la/richard11209
On 2022/10/29 10:32 p.m., Ricky wrote:
> On Saturday, October 29, 2022 at 2:59:20 PM UTC-4, Uwe Bonnes wrote: >> Robert Latest <bobl...@yahoo.com> wrote: >>> Looking for something that solders into a PCB like the ubiquitous cheap DC/DC >>> modules, but AC to DC with galvanic insulation. Couldn't find any but maybe >>> didn't look right. >> Do you a favour and use a exernal wall wart. No need for yoor PCB to >> follow the needed security rules and checks > > That shouldn't be a big deal to add a module. I believe there is a spacing which should be easy to implement. Are you talking about some paperwork that is needed? >
UL, CSA, CE to start the list of approvals needed if you plan to market this as a product. If for single one-off use, then other than personal risk, you are on your own recognizance for electrical and fire safety inspections. John :-#)# -- (Please post followups or tech inquiries to the USENET newsgroup) John's Jukes Ltd. #7 - 3979 Marine Way, Burnaby, BC, Canada V5J 5E3 (604)872-5757 (Pinballs, Jukes, Video Games) www.flippers.com "Old pinballers never die, they just flip out."
On Sunday, October 30, 2022 at 1:49:26 AM UTC-4, John Robertson wrote:
> On 2022/10/29 10:32 p.m., Ricky wrote: > > On Saturday, October 29, 2022 at 2:59:20 PM UTC-4, Uwe Bonnes wrote: > >> Robert Latest <bobl...@yahoo.com> wrote: > >>> Looking for something that solders into a PCB like the ubiquitous cheap DC/DC > >>> modules, but AC to DC with galvanic insulation. Couldn't find any but maybe > >>> didn't look right. > >> Do you a favour and use a exernal wall wart. No need for yoor PCB to > >> follow the needed security rules and checks > > > > That shouldn't be a big deal to add a module. I believe there is a spacing which should be easy to implement. Are you talking about some paperwork that is needed? > > > UL, CSA, CE to start the list of approvals needed if you plan to market > this as a product. > > If for single one-off use, then other than personal risk, you are on > your own recognizance for electrical and fire safety inspections.
So you are saying the issue is the paperwork... You can use a power module that is already approved and contains the power cord connector, so there are no high voltages running around on your board, so nothing to get approved. Much like buying a radio module to circumvent many FCC approvals. -- Rick C. + Get 1,000 miles of free Supercharging + Tesla referral code - https://ts.la/richard11209
On a sunny day (Sat, 29 Oct 2022 23:04:10 -0700 (PDT)) it happened Ricky
<gnuarm.deletethisbit@gmail.com> wrote in
<32aabfe2-1759-434b-a84c-f31d0d90c51an@googlegroups.com>:

>On Sunday, October 30, 2022 at 1:49:26 AM UTC-4, John Robertson wrote: >> On 2022/10/29 10:32 p.m., Ricky wrote: >> > On Saturday, October 29, 2022 at 2:59:20 PM UTC-4, Uwe Bonnes wrote: >> >> Robert Latest <bobl...@yahoo.com> wrote: >> >>> Looking for something that solders into a PCB like the ubiquitous cheap DC/DC >> >>> modules, but AC to DC with galvanic insulation. Couldn't find any but maybe >> >>> didn't look right. >> >> Do you a favour and use a exernal wall wart. No need for yoor PCB to >> >> follow the needed security rules and checks >> > >> > That shouldn't be a big deal to add a module. I believe there is a spacing which should be easy to implement. Are you >> > talking about some paperwork that is needed? >> > >> UL, CSA, CE to start the list of approvals needed if you plan to market >> this as a product. >> >> If for single one-off use, then other than personal risk, you are on >> your own recognizance for electrical and fire safety inspections. > >So you are saying the issue is the paperwork... You can use a power module that is already approved and contains the power >cord connector, so there are no high voltages running around on your board, so nothing to get approved. > >Much like buying a radio module to circumvent many FCC approvals.
Wonder how that will go with the new USB connector power specs in Europe Will there still be wallwarts with the round connectors? So then you need an USB chip to negotiate a voltage...
Robert Latest wrote:
================
> > Looking for something that solders into a PCB like the ubiquitous cheap DC/DC > modules, but AC to DC with galvanic insulation. Couldn't find any but maybe > didn't look right. >
** If you only need a few, get some 24V SMPS type AC adaptors and remove the PCB. Attach same to your PCB. .....Phil