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???
06/28/05 12:21
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 		 #96093 - what it has to do
Responding to: ???'s previous message
What to do with a welding machine??
what it has to do is that it provides a formula for Tr vs generated frequency. Thus Prahlads friend can see that switching willy nilly, which generates a "Tr" will generate a spectrum based on the formula f = 0.5/Tr

Yes, the relation to the welding power switching may not be totally obvious, but it is there.

Erik

List of 38 messages in thread
TopicAuthorDate
Resistive load soft switching.            01/01/70 00:00      
   basically            01/01/70 00:00      
      How is this HF generated that radiate.            01/01/70 00:00      
         Think about it this way...            01/01/70 00:00      
   you're welcome            01/01/70 00:00      
      Re: The underlying reason.            01/01/70 00:00      
         well            01/01/70 00:00      
            Re: Well.            01/01/70 00:00      
               switch with 1kHz & place AM radio nearby            01/01/70 00:00      
                  i agree but how to explain a theory worm            01/01/70 00:00      
                     a simple answer            01/01/70 00:00      
                        Re: Simple Answer.            01/01/70 00:00      
                           dv/dt and dI/dt            01/01/70 00:00      
                              OLD Europe ?            01/01/70 00:00      
                              Thanks Frieder,            01/01/70 00:00      
                           half of a square wave            01/01/70 00:00      
                              Thanks Erik,            01/01/70 00:00      
   WHY            01/01/70 00:00      
      Thanks Steve,            01/01/70 00:00      
   AC Vs DC and dv/dt            01/01/70 00:00      
   DC harmonics            01/01/70 00:00      
      Does mean DC switghin = more emission            01/01/70 00:00      
         generally            01/01/70 00:00      
            Thats why.....            01/01/70 00:00      
               What about negative time            01/01/70 00:00      
      Of course            01/01/70 00:00      
      A lot - sure, but            01/01/70 00:00      
   I suppose so..            01/01/70 00:00      
   Fouier and negative frequencies            01/01/70 00:00      
   Is this not a trick question?            01/01/70 00:00      
   I didnt realise it was all a test....            01/01/70 00:00      
   How to convince your friend...            01/01/70 00:00      
      Thanks Kai.            01/01/70 00:00      
      I am reopening this old thread            01/01/70 00:00      
   What to do with a welding machine??            01/01/70 00:00      
      apologia            01/01/70 00:00      
      what it has to do            01/01/70 00:00      
         Thanks Erik & Kai            01/01/70 00:00      

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