Hi Rick, I'll answer the question with anther question -- how does one properly measure power supply noise? Does it boil down to a single number, a couple of key numbers, or is it a plot, or several plots?
I ask because without some sort of standard test and reporting method it just becomes a word game. Like, "use batteries because they are better"; "use my design because it is quiet"; "this has lower noise than that". RMS AC ripple or nV/rtHz sounds like a good start, but I'm wondering if there's something more complete. I was never quite satisfied with the outcome of comparing a half dozen power supplies this way: http://www.leapsecond.com/pages/tbolt/noise.htm We have rigorous ways to compare and report oscillator performance; both as numbers and as plots. Is there something equivalent for power supplies? Thanks, /tvb > I know this topic has been discussed in the past on the list, but > a colleague is asking if there are any off the shelf low > noise power supplies for testing oscillators. Something > a cut above an HP "brick" lab power supply etc. They are hoping > to avoid having to homebrew a power conditioning circuit. > Did we ever arrive at a concensus as to the state of the art > in homebrew power conditioning circuits? > > Any help would be appreciated. > > Rick Karlquist N6RK _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
