The way you have IC1F and IC1C wired they make a voltage doubler. That voltage will eventually fry the input of IC1A. If you disconnect the left side (anode) of d1 and tie it to ground, the circuit should work (in a certain frequency range). If it worked once, then I believe this change should make it work reliably. You can also do without C1 and D2. I tried to redraw the schematic in easyspice on Mepis, but it gave me problems with filenames, so I didn't even get to use the schematic editor. Besides, it's already late here.
> can be used to keep the chip from passing signals until EMC2 is up and > running. My problem is that I have yet to get a stand-alone charge pump > detector working. This worked once, but failed when I tried to make the > final board: > http://www.wallacecompany.com/machine_shop/Shizuoka/watchdog-1b.png > ------------------------------------------------------------------------------ Come build with us! The BlackBerry(R) Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9 - 12, 2009. Register now! http://p.sf.net/sfu/devconference _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
