I don't believe DC to AC convertors are very common, I have always had to make one with the small handful of parts I mentions. A transformer by itself won't do anything (but get warm)if connected to 5VDC on its input. You could use a transformer from the AC mains 117AC to 9VAC and it would be floating as well. -----Original Message----- From: firstname.lastname@example.org [mailto:email@example.com] On Behalf Of john/lori Sent: Friday, September 13, 2013 11:09 PM To: firstname.lastname@example.org Subject: Re: 9VAC from 5VDC? > > I want something I can buy, as I assume, if this works, lots of people > with dodgy PSUs will want to replicate it. I could double/triple the > voltage using a doubler/tripler and use a 1:1 isolation if needed, if > a > 1:1 was easily sourceable, and a 1:2 was not, but that's more > components and more things to solder up incorrectly. > > So, a nice 1:2 or 1:3 transformer that will work in the use case would > be ideal, something I can buy off the shelf. > > Jim > > Message was sent through the cbm-hackers mailing list > I'm sure if you went and poked around Digikey you could find a nice off the shelf, isolated 5VDC to +- 12 or 15 VDC, board mounted converter that would supply a couple hundred ma. God only knows what it would cost. Your first born or the pound of flesh nearest your heart or something. Message was sent through the cbm-hackers mailing list Message was sent through the cbm-hackers mailing listReceived on 2013-09-14 04:01:04
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