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???
05/10/05 05:53
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 		 #93253 - DC harmonics
Responding to: ???'s previous message
Switching the DC voltage will produce far more harmonics.
If you want to experiment with voltage waveforms and the corresponding frequency components then excel has a Fourier transform macro which you could play with.Or you could even try the Laplace transform method which is slightly easier and allows you to convert the differencial equations given by discontinious waveforms into simple to handle expressions.

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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