piclist 2000\06\04\221859a >
Thread: PC Power Supply
www.piclist.com/techref/power/actodc.htm?key=power
picon face BY : Mitchell D. Miller email (remove spam text)



Mark,

>
> Hint:  This isn't a "low-noise" power supply.  You may want to use R-L-C
> filtering if you need cleaner power - don't know your needs.  For PIC
> projects I just down-regulate from 9V, works.  (7809 inside that panel.)
>

Is the noise enough to cause oscillatior problems on a simple SX project?
I've been trying to use the SX with the Murara resonator that Parallax
sells, but can't seem to make it oscillate.  Project works fine when
Parallax's SX Key is providing the clock.

Why do you choose to regulate down from 9v (which I presume comes from the
+12), instead of directly using the +5 the p.s. provides?  Noise?

-- Mitch

<002201bfce94$09fe84e0$8fe20418@cx975884a> 7bit

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