On Mon, 27 Apr 2009 12:22:11 +1000, "Phil Allison"
wrote:


"UCLAN"

Please do not confuse Power Factor Correction (PFC) with power supply
efficiency. They are two separate items.

** OK so far.

PFC can be either active or passive,

** Hmmmm...

but usually alters the highly capacitive input of SMPSs.


** TOTAL ******** !!!

They are not capacitive, there is no phase angle.

Active PFCs correct WAVEFORM distortion.



...... Phil





Take you meds and lie down for a while. What he said was perfectly
reasonable.

John