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???
03/29/05 18:05
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#90622 - wallwarts
Responding to: ???'s previous message
Sorry for asking, but what is a 'wallwart'? That's an English word I don't know (yet???)... :-(
here is one
http://www.phihong.com/html/psa-05a.html

If you go for the transformer, then you have the 220V directly on the board
not if you use wallwarts

Erik


List of 37 messages in thread
TopicAuthorDate
Detecting 220V            01/01/70 00:00      
   AC-input optoisolator            01/01/70 00:00      
      Thanks!            01/01/70 00:00      
   I'd use a transformer            01/01/70 00:00      
      Why the transformer?            01/01/70 00:00      
         not necessarily relative to ground            01/01/70 00:00      
            Neon + LDR?            01/01/70 00:00      
      I read the Datasheet of MID400            01/01/70 00:00      
         MID400            01/01/70 00:00      
            That's strange, Erik!            01/01/70 00:00      
               recognized            01/01/70 00:00      
                  "You're Forgiven, Not Forgotten..."            01/01/70 00:00      
   Transformer isolation recommended            01/01/70 00:00      
      May I Modify Your Suggestion Kai ??            01/01/70 00:00      
         Of course...            01/01/70 00:00      
            Kai, Michael - what about ready-made            01/01/70 00:00      
               Could also solve the problem            01/01/70 00:00      
                  One futther on the Wall Wart Idea...            01/01/70 00:00      
                  Wall Wart            01/01/70 00:00      
      Is optoisolation fundamentally dangerous            01/01/70 00:00      
         No, not fundamentally, but...            01/01/70 00:00      
            What is dangerous?            01/01/70 00:00      
   A different view            01/01/70 00:00      
   I'm sweating... ;-)            01/01/70 00:00      
      wallwarts            01/01/70 00:00      
         Oh, I see!            01/01/70 00:00      
            that's a lot of fuses            01/01/70 00:00      
            A bit clarification required            01/01/70 00:00      
               Forgot to press the "Post" button            01/01/70 00:00      
                  enough, yes - that much, no            01/01/70 00:00      
                  Existing commercial products            01/01/70 00:00      
                     Quite a large project, indeed...            01/01/70 00:00      
                        Mains control            01/01/70 00:00      
                           I know...            01/01/70 00:00      
                        Safety issues            01/01/70 00:00      
   Another idea, using a coil and an op-amp            01/01/70 00:00      
      RE: Another idea...            01/01/70 00:00      

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