); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY Poul-Henning Kamp wrote: > Considering the efficiency and easy availability of switchmode > supplies these days, I would never bother with a linear regulator > in a new design. > > For instance national has a series of switch mode regulators (LM25xx) > which just requires a coil and a diode more than the usual LM78xx > types. > > If you are worried about noise from the swichmode, you can add more > filtering to the output. > > That is a recipe for disaster if one wants a really low noise oscillator. This is particularly true if one is a beginner. Reducing the output noise of a switching regulator to 100uV rms or less is neither easy nor simple.
Bruce _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
