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???
11/25/04 19:21
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#81956 - Reply
Responding to: ???'s previous message
Thank you all of you gays,

My question is referred to simply sense the presence of my AC voltage.

I am searching for a circuit that will provide me the presence of AC voltage with lets say 5 volts output that I could be connected to an INT of my 8051.

I had used a circuit with 1 capacitor 0.1ì 630V and 1 resistor in series connected to an optocoupler. This circuit was really nice but rather big for my application.

Do you have any other advice or circuit with real values?
br APA

List of 22 messages in thread
TopicAuthorDate
230V AC Monitoring            01/01/70 00:00      
   Re: 230V AC monitoring.            01/01/70 00:00      
      More questions            01/01/70 00:00      
         reply            01/01/70 00:00      
            Use an optocoupler            01/01/70 00:00      
               Why opto?            01/01/70 00:00      
                  picture            01/01/70 00:00      
                     Mains detector            01/01/70 00:00      
                     "Mains"detector            01/01/70 00:00      
                        Earlier detect            01/01/70 00:00      
                           Re: Earlier detect            01/01/70 00:00      
                     Why opto?            01/01/70 00:00      
                        Opto            01/01/70 00:00      
   Capacitive Divider            01/01/70 00:00      
      A word of warning            01/01/70 00:00      
      Reply            01/01/70 00:00      
         Voltage sensing            01/01/70 00:00      
            Step down transformer            01/01/70 00:00      
   Danger!            01/01/70 00:00      
      Peak and RMS: Andy            01/01/70 00:00      
         What?            01/01/70 00:00      
         230 Vrms            01/01/70 00:00      

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