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???
12/06/07 05:43
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#147919 - No problems
Responding to: ???'s previous message
Russell Bull said:
If the wire is carrying DC, then no induction can take place - but if the current changes through that wire, then coupling may be a problem.

Current does changes when motor changes its speed.

Russell Bull said:

If you think coupling may be a problem, then encase the electronics in a shielded case so that coupled fields will only couple into the case rather than through nodes on your circuit. Think transformer theory here.


I can encase the opamp, uC and RS485 inside . The system doesnt have a chassis GND, in this case the ckt GND has to be connected to the case ground ,I guess that could be a problem?.

Best/
AP




List of 5 messages in thread
TopicAuthorDate
uC and heavy EMF environment            01/01/70 00:00      
   everything is a compromise            01/01/70 00:00      
      I am curious            01/01/70 00:00      
   No problems            01/01/70 00:00      
      No problems            01/01/70 00:00      

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