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???
11/26/10 01:31
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#179624 - Solution in sight
Responding to: ???'s previous message
Dear Kai,

Greetings from a 'relatively' warm Chennai. The best part of the year for us starts in Nov and ends with Feb - where the maximum is about 32 Deg C and minimum around 20 Deg C. No we don't white any time in our life here !!

I guess in the zener solution that I earlier tried I missed the shunt to ground. Thanks for the idea. Will try it out and wth a little tweaking of the resitor values I am sure I will switch off the LED, for good ! Thaks to you too Erik.

And there were others members who wanted to know the exact details f the switch. Sorry - I should have thought of it. Here we go : The P<4..7><0..7> are my 32 output lines.

Regards

Raghu

List of 19 messages in thread
TopicAuthorDate
Switch off a LED array            01/01/70 00:00      
   What are the switches?            01/01/70 00:00      
   Virtual ground at 3.3V            01/01/70 00:00      
      3.3V Regulator Idea            01/01/70 00:00      
         The 3.3V regulator idea might not work!            01/01/70 00:00      
   It is a SOURCE board ...            01/01/70 00:00      
   Hhm, leakage currents?            01/01/70 00:00      
      Solution in sight            01/01/70 00:00      
         LED tester shows bad design/bad parts            01/01/70 00:00      
            Who is the designer ?? Stand up....            01/01/70 00:00      
               LED tester shows bad design/bad parts            01/01/70 00:00      
               I wouldn't rely on anything published by NI            01/01/70 00:00      
                  crying wolf again??            01/01/70 00:00      
                     NI is not a fly-by-night-operator            01/01/70 00:00      
                        No question about that            01/01/70 00:00      
                           The "crying wolf" is right here...            01/01/70 00:00      
                              I also say it...            01/01/70 00:00      
                                 Leakage current analysis            01/01/70 00:00      
            Also, the voltage across the load....            01/01/70 00:00      

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