Re: SMPS input filter question.

On 22 Nov., 11:09, "Phil Allison" <philalli...@xxxxxxxxxx> wrote:
"KlausKragelund"
"Phil Allison"



"One core I just worked with 45% rise of permeability, so you need to
derate current accordingly. The same CM choke had a RMS current spec
of 0.5A, but a measured saturation current of 3.2A at 25 degrees"

** A peak to rms ratio ( crest factor ) of 6 or more is extraordinary.

Never be seen in any normal AC supply current draw waveform.

The usual is about 2 or 3.

The OP has nothing to worry about.

What about the CM current? (how can you know his application?)

** The OP described it - shame you are a blind fuckwit.

About the crest factor - the project I working on now is a 50W pump
with a crest factor of 6. (electronics on a low-impedance mains
network).

** Yawn ............

*** off - you idiotic PEDANTIC IMBECILE !!

....... Phil

Plunk ;-)
.

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