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???
03/29/12 12:20
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#186943 - Inductive VS resistive characteristics
Responding to: ???'s previous message
for Resistive load the voltage and current waveform are almost identical

on the other hand, a wire wound transformer is an inductive load and the currents tends to lag behind the voltage. once triggering a triac or thyristor relies on the current flowing through the device to keep it conducting. should the current fall below the device's threshold level it will turn off or stop conducting. however with an inductive load the current lags behind the voltage so it is possible that the current through
the triac or thyristor threshold level before the triggering pulse ends. output result is unacceptable.
to avoid this, use hard firing technique for inductive load. this ensures that the triger pulse is maintained for a long enough period of time to ensure that current reaches the device's threshold level

List of 18 messages in thread
TopicAuthorDate
Gate pulse for anti paraller Thyristor configuration            01/01/70 00:00      
   Inductive VS resistive characteristics            01/01/70 00:00      
    :( not even single person is interested in this post......            01/01/70 00:00      
      what?            01/01/70 00:00      
      Power Electronics            01/01/70 00:00      
   Thank for Replay and your interest            01/01/70 00:00      
   Code            01/01/70 00:00      
      Established Synchronization But.......            01/01/70 00:00      
      ?            01/01/70 00:00      
         Not function            01/01/70 00:00      
      Code Does not make sense            01/01/70 00:00      
         for understanding only....            01/01/70 00:00      
            Confusion, more like            01/01/70 00:00      
         Formating ....            01/01/70 00:00      
            It is always, but especially when ....            01/01/70 00:00      
         Problem Resolved            01/01/70 00:00      
            Please share            01/01/70 00:00      
               Ya sure....            01/01/70 00:00      

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