USB power voltage regulator
USB power voltage regulator
(OP)
Hello All - I need to power a pressure transducer with 5V and I have a computer nearby. USB provides 5V, but it is not regulated enough for the pressure transducer. Does anybody make a device that you plug into a standard USB hub, but regulates/filters the power out to a better level, say +/-.05% on the voltage? I'm not an electrical guy, so if I've committed some kind of crime in my description, please be kind. Thanks for the help.
Luke
Luke





RE: USB power voltage regulator
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TTFN
FAQ731-376: Eng-Tips.com Forum Policies
RE: USB power voltage regulator
That's 250uV of ripple, and you're going to need more than a $20 off the shelf item to get that kind of accuracy out of a USB socket, particularly when you're trying to run a regulator with the input/output voltages at the same point.
Dan - Owner

http://www.Hi-TecDesigns.com
RE: USB power voltage regulator
Luke
RE: USB power voltage regulator
If you're willing to go benchtop, then you should just get a new power supply altogether. Anything that's benchtop probably can't run off of 500 mA anyway.
TTFN
FAQ731-376: Eng-Tips.com Forum Policies
RE: USB power voltage regulator
Dan - Owner

http://www.Hi-TecDesigns.com