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

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%, &...

1 answer  ·  posted 2y ago by 2kind‭  ·  last activity 2y ago by Olin Lathrop‭

Question SMPS ripple
#3: Post edited by user avatar 2kind‭ · 2022-02-23T17:33:23Z (about 2 years ago)
  • How to choose the right value for input voltage ripple of an SMP?
  • How to choose the right value for input voltage ripple of an SMPS?
#2: Post edited by user avatar 2kind‭ · 2022-02-23T17:33:10Z (about 2 years ago)
  • How to choose the right value for input voltage ripple of an SMPS
  • How to choose the right value for input voltage ripple of an SMP?
#1: Initial revision by user avatar 2kind‭ · 2022-02-23T17:32:53Z (about 2 years ago) 
How to choose the right value for input voltage ripple of an SMPS
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.
SMPS ripple