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???
07/11/06 12:37
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#120015 - no, they are not "independent of the supply voltag
Responding to: ???'s previous message
Yes I know there are different ways. But I thought relays are the easiest because they are independent of the supply voltages. I mean, in some case I may have to take input from a 440V AC also. And the relay method will still work. So I opted for relays.
no, they are not "independent of the supply voltages". DUCK, REAL LOW BEHIND A SCREEN and then apply 440V to a 5V relay. That will show you.

About Opto- couplers I am not very well versed with them. Also people told me they are quite expensive. Is that true?
For reference, whether you want to buy from them or not, just use http://www.digikey.com. when I want to buy something in "distributor bypass volumes" I use the digikey catalog to see which manufacturers to contact. In lower volumes I often buy from digikey, they are ultra-convenient.

Erik

List of 23 messages in thread
TopicAuthorDate
Reading Bounce Characteristics on a PC            01/01/70 00:00      
   System Requirements            01/01/70 00:00      
      Nothing in perticular            01/01/70 00:00      
         OS?            01/01/70 00:00      
            Microsoft XP; 2000; NT; 98 ;95            01/01/70 00:00      
               all?            01/01/70 00:00      
               I wouldn't bet on it            01/01/70 00:00      
   totally irrelevant            01/01/70 00:00      
      What loads are switched?            01/01/70 00:00      
         I agree            01/01/70 00:00      
         It would be interesting to know things            01/01/70 00:00      
            Implimentation details            01/01/70 00:00      
               Again...            01/01/70 00:00      
                  Well the relays are .....            01/01/70 00:00      
                     Only to detect mains voltage?            01/01/70 00:00      
                        Yes, I know but.....            01/01/70 00:00      
                           no, they are not "independent of the supply voltag            01/01/70 00:00      
                           Comparable to relays            01/01/70 00:00      
                           Optos            01/01/70 00:00      
                              Exiting stuff!            01/01/70 00:00      
                                 Not necessarily!            01/01/70 00:00      
         It would be interesting to know things            01/01/70 00:00      
   Could somebody verifiy the result            01/01/70 00:00      

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