In a message dated 98-11-30 12:58:20 EST, plaw...@west.net writes:
<< > Hello Colleagues,
> I have recently learned of a technology whereby harmonic disturbances may
be
> reduced via APFC (Active Power Factor Correction). This is apparently a
> device that injects cancellat
Electrotek Concepts Inc. No
email address was given, although they have a web site at
http://www.electrotek.com/
> From: POWELL, DOUG [SMTP:doug.pow...@aei.com]
> Sent: Wednesday, November 18, 1998 1:55 PM
> To: EMC-PSTC (E-mail)
> Subject: Active Power Factor Correction
>
>
Hello group,
As a clarification, I am fully aware of PFC using a boost converter on the
input of a power supply with MicroLinear or Unitrode devices. I am also
familiar with line reactors, delta-wye transformers, zig-zig transformers,
resonant traps and so on.
All of these technologies will gi
t; From: POWELL, DOUG [SMTP:doug.pow...@aei.com]
> > > Sent: Wednesday, November 18, 1998 1:55 PM
> > > To: EMC-PSTC (E-mail)
> > > Subject: Active Power Factor Correction
> > >
> > > Hello Colleagues,
> > >
> > > I have recen
Hi Doug:
Active (as opposed to passive) power factor correction
for electronic products is a high-frequency "switching
rectifier" (ahead of the switching-mode power supply)
which stores energy in an inductor rather than in a
capacitor.
The current waveform is in phase with the voltage
wave
Dan, do you have the web address for microlinear ?
Thanks,
George
> -Original Message-
> From: Daniel Sicard [SMTP:dsic...@positronfiber.com]
> Sent: Wednesday, November 18, 1998 9:12 PM
> To: EMC-PSTC (E-mail)
> Subject: RE: Active Power Factor Correction
>
&
PM
> To: EMC-PSTC (E-mail)
> Subject: Active Power Factor Correction
>
> Hello Colleagues,
>
> I have recently learned of a technology whereby harmonic disturbances
> may be
> reduced via APFC (Active Power Factor Correction). This is apparently
> a
> device
Hi Doug.
The ERA in Leatherhead, UK, was doing a lot of work with this stuf, and had
a product.
Tel:+44 (0) 1372 367030
Fax: +44 (0) 1372 374074
Email: i...@era.co.uk
Sorry. I don't recall the chap running the group.
Chris Dupres
Surrey, UK.
-
This message is coming from the emc-pstc
providing some info on the subject.
> -Original Message-
> From: POWELL, DOUG [SMTP:doug.pow...@aei.com]
> Sent: Wednesday, November 18, 1998 1:55 PM
> To: EMC-PSTC (E-mail)
> Subject: Active Power Factor Correction
>
> Hello Colleagues,
>
> I have recen
Hello Colleagues,
I have recently learned of a technology whereby harmonic disturbances may be
reduced via APFC (Active Power Factor Correction). This is apparently a
device that injects cancellation harmonics back onto the line under closed
loop control.
Is anyone able to point me to any
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