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???
01/26/06 00:36
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#108318 - MOC3021
Hello sirs

I am detecting zero crossing and making ON a triac BTA41 using opto triac MOC3021. I want to clarify whether switching OFF of BTA41 is because of next Zerocross in opposite direction or can we just switch OFF with making the input LED of MOC3021 OFF at any position of the mains cycle.

Secondly firing at any angle works on motor but does not work on a bulb why?
Any body faced with simlar problem?
Hope I have defined the problem correctly...




List of 15 messages in thread
TopicAuthorDate
MOC3021            01/01/70 00:00      
   Triacs only turn off at zero            01/01/70 00:00      
   Motor, bulb            01/01/70 00:00      
      More....            01/01/70 00:00      
         dI/dt            01/01/70 00:00      
             ... or was it dV/dt ?            01/01/70 00:00      
   Triac            01/01/70 00:00      
      Domestic light dimmers use triacs            01/01/70 00:00      
         Clarification required!            01/01/70 00:00      
            Triac current and voltage            01/01/70 00:00      
               the link linked to is dead            01/01/70 00:00      
                  Triac magic            01/01/70 00:00      
                     T shirt            01/01/70 00:00      
         Well.            01/01/70 00:00      
            Inductive loads            01/01/70 00:00      

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