--===============0960546575==
Content-Type: text/plain;
	charset="windows-1250"
Content-Transfer-Encoding: 8bit

Optical sensor (look for when something is not blocking a light source)?

Or - toroid, single transistor amp, comparator and an integrator?  Use a
ratio on the toroid to get enough sensitivity for a minimum current?

Or - park a 100mH inductor next to the hot wire, resonate the inductor to
60Hz, envelope detect and use a simple comparator to trigger?



Scott 


>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

  Simply put, I need to know when something has been unplugged from a AC
socket.  I don't care about how much current its drawing (I do...but I dont
need to know), because in some cases it might be a 100mA wall wart and in
other cases a 100W power supply.  I just want to know....did it get
unplugged.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

  

 


No virus found in this outgoing message.
Checked by AVG Free Edition. 
Version: 7.5.467 / Virus Database: 269.6.6/795 - Release Date: 5/9/2007 3:07
PM
 



--===============0960546575==
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist

--===============0960546575==--