Re: PFC = power factor capacitor?

To: tesla-at-pupman-dot-com
Subject: Re: PFC = power factor capacitor?
From: "Ed Phillips" <evp-at-pacbell-dot-net> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
Date: Mon, 14 Feb 2000 20:32:56 -0700
Approved: twftesla-at-uswest-dot-net
Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

it took me months to learn
> > that ESR meant equivalent series resistance in a capacitor. Does this mean
> > the ohmic resistance eqivalent to its capacitive reactance? Or does it
> > represent the resistance encountered as leakage current?
> > Sure wish the posters could at least say what the letters mean once in a
> > while. HDN
> 
> It is actually an "old" abbreviation well known to those in the
> switchmode power supply (SMPS) community. It is an *equivalent*
> resistance wired in series with a "perfect" capacitor that describes
> all resistive losses (dielectric hysteresis, leakage etc.). It is really an
> engineering modelling tool similar to modelling a real transformer as
> a perfect one with a single resistance in series with its windings.
> 
> Regards,
> Malcolm

	ESR is a term used in my "Radio" handbooks of the '30's.

Ed