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???
08/23/06 06:54
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#122829 - avr
Responding to: ???'s previous message
thanks to everyone
i have seen the note avr465 but, it uses a current transformer, i had an idea of sampling current and voltage seperately using OPAMP and multiplying them after converting them into DC using a 8051 microcontroller. But the problem is regarding the power factor thing.. Should we consider it or not for an unknown load??

List of 21 messages in thread
TopicAuthorDate
energy meter using microcontrollers            01/01/70 00:00      
   You haven't looked too hard!            01/01/70 00:00      
   no links, but            01/01/70 00:00      
   use a ready made one            01/01/70 00:00      
      Were I the "guide" I would have trouble deciding w            01/01/70 00:00      
      Or use specialized chips            01/01/70 00:00      
   To answer what should be the first question ...            01/01/70 00:00      
   This is for AVRs but worth reading            01/01/70 00:00      
   avr            01/01/70 00:00      
      Project Spec            01/01/70 00:00      
   STPM01            01/01/70 00:00      
   Have a look at this            01/01/70 00:00      
      And the eval board, for concrete part values...            01/01/70 00:00      
         dsp ic and metering ic            01/01/70 00:00      
            how shocking            01/01/70 00:00      
               Current transformer            01/01/70 00:00      
                  MAKE one            01/01/70 00:00      
                  Certain not            01/01/70 00:00      
                     It all depends...            01/01/70 00:00      
                        True, however            01/01/70 00:00      
   ebay!            01/01/70 00:00      

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