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???
07/18/05 12:35
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#97556 - frequency - delay
Responding to: ???'s previous message
The thing is, I have always imangined filters to be usefull in AC applications, at it responds to frequency. So how will filters (used to impliment intergration and differentiation) be used in DC applications? I am aware that a DC pulse is "made up" the addition of harmonics, is the trick that I am failing to see?

frequency - delay are two things affected by the same things. If you feed AC to a RC the cutoff frequency drops, if you feed a DC "step" to a RC filter, it will be delayed.

Erik



List of 15 messages in thread
TopicAuthorDate
Off Topic - A control systems question            01/01/70 00:00      
   Filters to provide PID-controlling            01/01/70 00:00      
      A question            01/01/70 00:00      
         frequency - delay            01/01/70 00:00      
            Another perspective            01/01/70 00:00      
               I would to understand            01/01/70 00:00      
                  Plant response            01/01/70 00:00      
                  How the controller controls the plant            01/01/70 00:00      
         filters ...            01/01/70 00:00      
         Mathematics helps to understand...            01/01/70 00:00      
            How come ?            01/01/70 00:00      
               Fluxions            01/01/70 00:00      
   Pictures and animated graphics and all            01/01/70 00:00      
      Very nice link, indeed!            01/01/70 00:00      
   thank you all.            01/01/70 00:00      

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