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Steve M. Taylor
03/29/06 07:28
Read: 390 times
State College
USA


 
Msg Score: +1
 +1 Good Answer/Helpful
#113358 - transformers
Responding to: Kai Klaas's previous message
Kai Klaas said:
Interwinding capacitance of both secondary windings of mains transformer of several 100pF looks like a short circuit for high frequency digital noise, which makes both ground planes being connected again by two paths.



In a Sub pico farad bridge I built recently, which would NOT balance, I placed a grounded shield within the transformer and stopped interwinding effects dead.

Not saying he should do it, just that there are benefits to screens.

Steve

List of 13 messages in thread
TopicAuthorDate
Location of Supply section.      Prahlad J. Purohit      03/27/06 21:15      
   Traversing the gap using a pi-filter        Kai Klaas      03/28/06 05:50      
      Making a new dsPIC board.      Prahlad J. Purohit      03/28/06 06:15      
         7 AAAs better than one block      Kai Klaas      03/28/06 06:45      
            7.2V Pack      Prahlad J. Purohit      03/28/06 06:51      
               for handheld/battery      Erik Malund      03/28/06 06:57      
                  I am planning to use 700mAh rechargeable      Prahlad J. Purohit      03/28/06 07:23      
               7.2V block = 120mAh!      Kai Klaas      03/28/06 08:53      
                  700mAh 7.2V block available here.      Prahlad J. Purohit      03/28/06 20:55      
      transformers        Steve M. Taylor      03/29/06 07:28      
         Screens      Kai Klaas      03/29/06 09:02      
         How do you do it?      Jon Ledbetter      03/29/06 09:12      
            Manufacturer      Kai Klaas      03/29/06 09:16      

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