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06/27/03 02:58
Read: 442 times


 		 #49493 - RE: detector of 220volt
Responding to: Charles Bannister's previous message

The TIL111 has a 50% CTR at 10mA , so the drive current of 1mA that you have allowed for may not be enough to drive the device..
As the TIL111 is not a particularly sensative device you may have to allow anywhere from 10-15mA , which will dissapate 3watts in your current limiting resistor , and provide plenty of onboard heating.

List of 18 messages in thread
TopicAuthorDate
detector of 220volt      Kostas Paulidis      06/26/03 14:09      
   Draw a schematic!      Kai Klaas      06/26/03 14:19      
   RE: detector of 220volt      Dan Henry      06/26/03 14:27      
   ASCII Art      Andy Neil      06/26/03 14:49      
   RE: detector of 220volt      Charles Bannister      06/26/03 15:33      
      RE: detector of 220volt      Erik Malund      06/26/03 16:21      
      RE: detector of 220volt      Rob Redding      06/27/03 02:58      
         RE: detector of 220volt      Michael Karas      06/27/03 03:08      
   Transformer isolation      Kai Klaas      06/26/03 23:29      
      RE: Transformer isolation      Terry Lingle      06/27/03 00:04      
         RE: Transformer isolation      Kai Klaas      06/27/03 00:41      
         Circuit works!      Kai Klaas      06/27/03 11:18      
            RE: Circuit works!      Terry Lingle      06/27/03 20:10      
               RE: Circuit works!      Kai Klaas      06/27/03 22:13      
      RE: Transformer isolation      Jacob Boyce      06/27/03 11:00      
         RE: Transformer isolation      Kai Klaas      06/27/03 12:01      
            RE: Transformer isolation      Kostas Paulidis      06/28/03 00:38      
   RE: detector of 220volt      Abhishek Singh      06/27/03 02:42      

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