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???
01/03/06 13:44
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#106412 - Directly underneath the signal traces
Responding to: ???'s previous message
Nikhil said:
Now can we have ground plane using some good conducting foils just beneath the ckt pcb and connect it to ckt gnd.


This was already discussed in another thread. The crux with this solid ground plane is to have it directly underneath the signal traces! So, you should redesign your PCB and should fabricate a double sided board.

Please read this, and the whole thread:

http://www.8052.com/forum/read.phtml?id=106264


Nikhil said:
Or I can put my ckt in some aluminium box and connecting the box with gnd.

Not "or", but "also". Puting your circuit into a Faraday cage is always a good idea. But the solid ground plane is still needed.

Kai

List of 22 messages in thread
TopicAuthorDate
2 power supply problems            01/01/70 00:00      
   Experts are in Christmas holidays..            01/01/70 00:00      
      low pwr chips            01/01/70 00:00      
         Improved '51            01/01/70 00:00      
         Re:low pwr chips            01/01/70 00:00      
            try first            01/01/70 00:00      
            LP2950CZ-5.0 is good one            01/01/70 00:00      
   Answers            01/01/70 00:00      
      thank u kai i am already having            01/01/70 00:00      
         Further questions            01/01/70 00:00      
            The often overlooked fact is that "power            01/01/70 00:00      
            i have used 3300uf storage cap            01/01/70 00:00      
               posts in gobbelygook            01/01/70 00:00      
                  i was not aware            01/01/70 00:00      
                     why should I try to decipher what you            01/01/70 00:00      
                        capacitor postions            01/01/70 00:00      
                           you need 10-100nF directly (less            01/01/70 00:00      
               It's the neglectin of solid ground plane            01/01/70 00:00      
                  thank you kai i will try with solid gnd            01/01/70 00:00      
                     Directly underneath the signal traces            01/01/70 00:00      
   a suggestion            01/01/70 00:00      
      Simple Switchers LM2575            01/01/70 00:00      

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