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Ground looping

k.muralikrishna

Sep 28, 2018
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I am using two different potential and taking a common ground from two different potentials. By taking this way i am facing some problem, If i switch off the circuit also some amount of output is visible. Please suggest solution for this problem. Thanks in advance.
 

Harald Kapp

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Welcome to Electronicspoint.
Your post contains insufficient information:
  • which circuits do you use?
  • which supply voltages do you use?
  • where do you switch off the circuit?
  • what kind of output do you see (what is "some amount of output")
 

k.muralikrishna

Sep 28, 2018
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Dear Harald Kapp,

Thanks for your reply,
  • which circuits do you use?------ We are using to operate solenoid and pressure sensor.
  • which supply voltages do you use?---------24V and 3.6V.
  • where do you switch off the circuit?-------Battery output(we are controlling ground).
  • what kind of output do you see (what is "some amount of output")-------- Instead of 24V we are seing around 6 to 7V and 3.6V we are seeing 0V.
Thanks & Regards,
Muralikrishna.
9701620426.
 

Harald Kapp

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Show us a schematic diagram of your circuit, please. That will help more than words.
 

k.muralikrishna

Sep 28, 2018
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Dear Harald Kapp,

Sorry for late response. Please find the attached schematic diagram.

Thanks & Regards,
Muralikrishna.
9701620426
 

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Bluejets

Oct 5, 2014
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Too small....some of us are old fellas here ya know...
From what I can see it looks like a ladder diagram...circuit diagram is different kettle of fish.
 

Harald Kapp

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Please post a bigger, well readable diagram. Also tell us which signals or voltages are of concern with regard to your original question. If possible, label these signals in the circuit diagram.
 

Minder

Apr 24, 2015
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Ensure that all the P.S. commons are terminated at one common point if this a hard wired system, in the case of a printed circuit a similar configuration should be made in the GND planes.
How are they terminated right now?
M.
 
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