Email: Password: Remember Me | Create Account (Free)

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
???
02/02/05 13:28
Read: times


 		 #86371 - ground bounce
Responding to: ???'s previous message
Are you sure it's a spike on the supply, rather than a dip in the Ground reference?
Most power supplies I know of (of course, he could have rolled his own) would IMMEDIATELY go into protect mode if such a spike appeared. Try - I know it against all logic - to put the scope on the - pin of the supply and see what happens.


The same did NOT appear on the PIC board!
Again, was the spike also present on the input to this board?
Can you post the regulator circuit used on this board?
He specifies that the PIC power supply was powered by a different 110V circuit than the solenoids.

Erik

Just a thought that popped up as an aside (off topic) how much copper do you think would be saved if the 110V countries converted to 220V?


List of 30 messages in thread
TopicAuthorDate
Stalling uC            01/01/70 00:00      
   Stalling?            01/01/70 00:00      
   it's noise            01/01/70 00:00      
   Why the new Thread?            01/01/70 00:00      
   WDT Palliative only            01/01/70 00:00      
   The whole story..............and problem            01/01/70 00:00      
      What have you actually done so far?            01/01/70 00:00      
      Real code?            01/01/70 00:00      
   Compiled your code. Errors shown below            01/01/70 00:00      
      Nicely formatted code!            01/01/70 00:00      
      Update, and also Code in correct format            01/01/70 00:00      
         One small step            01/01/70 00:00      
   Some findings            01/01/70 00:00      
      Now it's becoming clearer            01/01/70 00:00      
      5V regulator            01/01/70 00:00      
         ground bounce            01/01/70 00:00      
            [OT] 110V to 220V            01/01/70 00:00      
               Hmm            01/01/70 00:00      
               More [OT] But shocks hurt more            01/01/70 00:00      
               110V in Latin America            01/01/70 00:00      
                  picky picky            01/01/70 00:00      
                  110V in Latin America            01/01/70 00:00      
   More info & an ans to Russell's question            01/01/70 00:00      
      Picture Posting            01/01/70 00:00      
   New Findings!!!            01/01/70 00:00      
      find the following            01/01/70 00:00      
   Update & Stable supply network            01/01/70 00:00      
      I think there are still problems            01/01/70 00:00      
      patching            01/01/70 00:00      
         Update            01/01/70 00:00      

Back to Subject List