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All comments and experiences are more than welcome. I just ordered the module from Digikey (Recom AC/DC) so at least I don't have to worry too much about it. It is costly ($14 for 5v 400ma) but I...

Believe me, my life will be MUCH easier if I can put an external supply is not that I don't want to do it.

Maybe buying those $2.5 opening them and using the boards inside them to my purpose.....

I would love to use one but I have 2 problems:

1) This circuit is going to be inside a closed plastic box with minor ventilation 4"x3"x2" deep.
2) Price, I can't find a good price for those power...

I did, I'll give it a try and see how it works with 110v

Regarding the isolation I thought that this module could be something "magical" :)

Thanks

I don't think it is isolated and it is expensive, but is everything in one module, it is attractive at least. Experiences?
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Hi Ioannis,

Thanks for the link. I've also searched the entire forum looking at the different posts (invested quite some time there) but the power supply you mention is for 220v not for 110v and...

Hello Guys,

I have the following need and never been involved in designing one of these before so I need all the help I can get.
I need to be able to put a very small transformerless power supply...