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???
11/29/06 18:18
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#128690 - Improper load?
Responding to: ???'s previous message
Ralph said:
Pins 12 and 13 have 1 k resistor across them and not sure I engineer would do that either see schematic picture.

This 1k resistor is needed to make the comparator skip, when the signal changes. But for this a varying current is needed to flow through this resistor, I guess. Maybe the comparator does not skip, because no regular load is connected to the circuit?
Try to connect variable resistances from P1.2 and P1.3 to signal ground and play a bit with them.


Kai

List of 23 messages in thread
TopicAuthorDate
Unknown pinouts application            01/01/70 00:00      
   who can tell            01/01/70 00:00      
      i did wonder why the ports were paralleled            01/01/70 00:00      
         Serial Converter            01/01/70 00:00      
         more information            01/01/70 00:00      
            To...            01/01/70 00:00      
               Yes but            01/01/70 00:00      
                  Hmm...            01/01/70 00:00      
                     What tells the scope?            01/01/70 00:00      
                        Nothing            01/01/70 00:00      
                           Level?            01/01/70 00:00      
                              What will happen            01/01/70 00:00      
                                 Improper load?            01/01/70 00:00      
         Jez see this            01/01/70 00:00      
      Hhm, but this paralleling is widely used!            01/01/70 00:00      
         Parallel MOS transistors are fine            01/01/70 00:00      
            Perfectly safe?            01/01/70 00:00      
               Reasonably safe            01/01/70 00:00      
   What is this circuit intended to do, Ralph?            01/01/70 00:00      
      What's it to do            01/01/70 00:00      
      What it does            01/01/70 00:00      
   Just out of interest lynn,            01/01/70 00:00      
      FPGA conversion cost            01/01/70 00:00      

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