[elektro] PC tap - passziv PFC-t dobjuk ki?

Szali Sandor szali at freemail.hu
Sat Mar 22 10:42:04 CET 2008


Asszem kikotom majd a PFC tekercset, [amitol jo nehez a tap :) ] es zizeg 
[bar csak ha csend van akkor hallani]
remelem nincs ugy meretezve benne semmi, hogy a nagyobb tuskek miatt 
elszall.
ez a PFC ugye egyedul csak az aramszolgaltatonak jo, hogy normalisabb legyen 
a jelalak a halozatan?
[meg az idezet szerint a fogyasztas is nagyobb tole]
Talaltam neten:


Oh by the way: on your first PSU water mod you said something about the big 
coil that makes noice !!
Just REMOVE it !!
it is the PFC coil, you know the power factor corrector, we dont give a s... 
about that, read my page about my water PSU for details about this coil :-)

A PFC coil smoothen out the current spikes from the retifier,
then the current curve will follow the voltage curve better,
BUT the only ones happy for this is your power company :-)
now you pay more...
YOU are not happy due to the heat loss in the coil, and audio sound, and 
voltage drop at your primary side capasitors,
the switchmode will run at a higher duty cycle, and generate even more 
heat.. many resons to remove it..
I have done this many times, always have it been good improvement ! 



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