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PC Power Supply Discussion Troubleshooting and discussion of computer power supplies

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  #11  
Old 9 Hours Ago
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ashiekh ashiekh is offline
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Quote:
Originally Posted by wwenze View Post
The keyword is "to what extent"

… doubling the voltage drop to 0.064V.
Quite significant when one realizes that the ATX spec is 50mV max ripple on the 5V and 3.3V line
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  #12  
Old 9 Hours Ago
wwenze wwenze is offline
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Quote:
Originally Posted by ashiekh View Post
Quite significant when one realizes that the ATX spec is 50mV max ripple on the 5V and 3.3V line
Not when you realize that this happens regardless of whether the ground return wires are shared or not and whether the current is coming from 12V or 5V or whatever.

And you quoted the higher value which is from my example of if the wires are *not* shared.

This is not a noise issue, this is a regulation issue.
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