If you can guarantee that R3 will always drop enough voltage, then you should be fine. But consider what your circuit is going to do on power-up and power-down, and if there will be any voltage spikes. If you don't think your solution will cut it, you could add a zener diode between ground and R2|TL431 . That, however, would reduce the accuracy of regulation at the top of R1. -Alan
On Fri, Feb 19, 2010 at 10:16 PM, gene glick <carzr...@optonline.net> wrote: > gene glick wrote: >> >> Anyone use these shunt regulators? I'm wondering about the max voltage. > > wow, that drawing didn't look very good in my mail client, but if you cut > and paste into kedit it looks reasonable. :) > > > _______________________________________________ > geda-user mailing list > geda-user@moria.seul.org > http://www.seul.org/cgi-bin/mailman/listinfo/geda-user > _______________________________________________ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user