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Comments on How to choose the right value for input voltage ripple of an SMPS?

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How to choose the right value for input voltage ripple of an SMPS?

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Which important system design parameters need to be locked in order to estimate the maximum allowable level of the input voltage ripple of an SMPS?

I have encountered ballpark figures of <1%, <1V throughout the various different designs and I wasn’t usually too worried about defining it - didn’t experienced issues passing EMC.

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maximum allowable level of the input voltage ripple (2 comments)
maximum allowable level of the input voltage ripple
Andy aka‭ wrote about 2 years ago

The maximum allowable level of the input voltage ripple is not calculated; it is something you, as an engineer decide upon.

2kind‭ wrote about 2 years ago

How do you decide upon meaningful value?