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???
01/13/10 10:32
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#172422 - five volts controlling a hundred
Responding to: ???'s previous message
The circuit is powered with a 12 VDC regulated supply and the triacs switch a little over 200 VAC at 400Hz to light some EL pieces. The EL inverter is powered by the 12 VDC source, the MCU is powered via a 5V regulator. MT1 of the triac connects to logic (and 12 V) ground and MT2 of the triac is connected to the EL piece. The gate of the triac is connected through a 620 Ohm resistor to the port pin of the MCU.

I would hate to waste the customer's time building a prototype to test this out and end up blowing a couple of MCU chips when I was hoping someone here had already tried it and can give me a thumbs up or down.

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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