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What is the advantage/disadvantage of putting ferrite bead on Input power supply Gnd

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sivamani

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What is the advantage/disadvantage of putting ferrite bead on Input power supply Gnd and board gnd ?
 

Advantage: it will suppress the high frequency noise in the path of signal.It can be seen with cables as shown below....
6022499305p.jpg

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Also when you are making common ground for analog and digital, ferrite bead is used to reduce noise....
 

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What is the advantage/disadvantage of putting ferrite bead on Input power supply Gnd and board gnd ?
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Hi Sivamani
Ferrite beads and low value inductors which are in series with the main line usually are being used to suppress high frequency waves through the line . ( it can be considered as a poor EMI filter too )
Best Wishes
Goldsmith
 

I have heard somewhere that they are poor at withstanding thermal shocks (changes in temperature).
 

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