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???
01/13/10 10:52
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#172424 - so i answered
Responding to: ???'s previous message
1) if You keep shame circuit , You need sourcing current, and read Per's note about resistors.
2)You change the circuit (cahnging microcontroller), soo You can move MT1 to +5V and sinking 4 mA by micro. See limits of AT89C2051 about total sinking current.
regards

List of 16 messages in thread
TopicAuthorDate
driving a triac with a ATMEL MCU            01/01/70 00:00      
   pull-up or other chip?            01/01/70 00:00      
   probably            01/01/70 00:00      
      five volts controlling a hundred            01/01/70 00:00      
         so i answered            01/01/70 00:00      
   Throwing out the baby?            01/01/70 00:00      
      previous            01/01/70 00:00      
         they need freelancers?            01/01/70 00:00      
         I see            01/01/70 00:00      
            Yep            01/01/70 00:00      
   don't forget about "triac drivers"            01/01/70 00:00      
      my prefered way            01/01/70 00:00      
   Do always use a buffer!            01/01/70 00:00      
      there is an old Philips appnote which ...            01/01/70 00:00      
         incredible            01/01/70 00:00      
            Thanks!            01/01/70 00:00      

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