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José Félix Díaz Ivorra
07/14/03 02:22
Read: 512 times
Alicante
Spain


 		 #50640 - RE: P89C51 relay interface
Responding to: ???'s previous message
Use a inverted logic, if not at the startup the relay will turn on and off.
You can use a single bc557 a resistor and don't forget the flyng diode.
If you use an L2003 you have all in one, howevwer is not inverted logic.

List of 15 messages in thread
TopicAuthorDate
P89C51 relay interface      Don McDermit      07/13/03 19:30      
   RE: P89C51 relay interface      Raghunathan R      07/13/03 21:10      
   RE: P89C51 relay interface      Michael Karas      07/13/03 22:00      
      RE: P89C51 relay interface      Nagarajan Viswa      07/14/03 03:34      
         RE: P89C51 relay interface      Kai Klaas      07/14/03 03:52      
            Correction: collector not base      Kai Klaas      07/14/03 03:56      
         RE: P89C51 relay interface      Lee Cross      07/14/03 14:52      
            RE: P89C51 relay interface      Kai Klaas      07/14/03 15:05      
               RE: P89C51 relay interface      Lee Cross      07/14/03 15:13      
                  RE: P89C51 relay interface      Kai Klaas      07/14/03 15:18      
      Thanks for the help      Don McDermit      07/16/03 12:41      
   RE: P89C51 relay interface      Félix Díaz      07/14/03 02:22      
   RE: P89C51 relay interface      Kai Klaas      07/14/03 03:43      
   RE: P89C51 relay interface      Mehmet Karakaya      07/14/03 12:52      
   RE: P89C51 relay interface      Lee Cross      07/14/03 15:06      

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