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Abhishek Singh
02/09/06 08:07
Modified:
  02/09/06 08:08

Read: 843 times
Bilaspur
India


 
#109610 - yes works
Responding to: Prahlad J. Purohit's previous message
dear Prahlad,


That LED conducts only in positive half cycle when input goes sligtly below the ground (-0.5 limited by the diode) voltage at inverting input is less than the voltage at non inverting input and out put goes high. Same way when positive half cycle when input goes litle above the Ground (beyound hystresis + offset) output goes low. Prahlad the ref voltage divider is formed between GND and the VCC so 1.67 V is there while the voltage Divider formerd on the inverting input is between input voltage and Vcc so input is not limited 1.6V but can go up to 10/30*(Vcc-1.6)+ 1.6.



Abhishek

List of 13 messages in thread
TopicAuthorDate
Zero cross detector led. [ Kai ]      Prahlad J. Purohit      02/08/06 08:08      
   Yes, still required      Kai Klaas      02/08/06 19:50      
      Please Elaborate      Abhishek Singh      02/08/06 21:21      
      Input signal.      Prahlad J. Purohit      02/08/06 21:59      
         CMIVR      Kai Klaas      02/09/06 06:16      
            Input smaller than reference.      Prahlad J. Purohit      02/09/06 06:36      
               yes works      Abhishek Singh      02/09/06 08:07      
               Will work!      Kai Klaas      02/09/06 18:36      
                  Re: Will Work.      Prahlad J. Purohit      02/10/06 07:29      
         are you aware      Erik Malund      02/09/06 06:48      
            Searched entire page.      Prahlad J. Purohit      02/09/06 07:08      
               sorry, it seems to be gone      Erik Malund      02/09/06 07:46      
                  Re: LPCxxx App note.      Prahlad J. Purohit      02/10/06 07:37      

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