On Wed, 2010-08-18 at 14:16 -0700, Lyle Johnson wrote: > The short answer is no.
The long answer :=) is that the P3 uses a pair of DC-DC converters to convert +12V down to the +3.3V and +5V needed by its circuitry. This tends to make the input "constant power" meaning that current times volts is nearly constant. With a 14V supply, the P3's current is well under 500 mA. But with 11V input, the current is close to that value. The best solution is probably what a couple others suggested: Use the K3's switched "12V DC OUT" jack to power a relay which switches the power to all the other devices. Then you don't have to worry about it. Alan N1AL > 73, > > Lyle KK7P > > > ...The K3 plug says 0.5A max, which is what > > the P3 draws. So it looks like its either/or. Is there > > enough conservatism in the rating of that power socket to add the P3? > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
