-p...@majordomo.ieee.org
[mailto:owner-emc-p...@majordomo.ieee.org]On Behalf Of Muriel
Bittencourt de Liz
Sent: Monday, December 03, 2001 10:00 PM
To: EMC-PSTC List
Subject: physics behind EMI powerline filter
Hello Group,
I have a long-time question, concerning the energy issues in a
EMI
]
Sent: Tuesday, December 04, 2001 6:34 AM
To: Joan Vicent Castell; Muriel Bittencourt de Liz
Cc: EMC-PSTC List
Subject: Re: physics behind EMI powerline filter
Hi All,
I recall Kent Chesley (he can see EMC) saying that controlling emissions is
like squeezing a balloon - you may stop it here
-emc-p...@majordomo.ieee.org]On Behalf Of mike harris
Sent: Tuesday, December 04, 2001 6:34 AM
To: Joan Vicent Castell; Muriel Bittencourt de Liz
Cc: EMC-PSTC List
Subject: Re: physics behind EMI powerline filter
Hi All,
I recall Kent Chesley (he can see EMC) saying that controlling emissions
...@eel.ufsc.br
Cc: EMC-PSTC List emc-p...@ieee.org
List-Post: emc-pstc@listserv.ieee.org
Date: Tuesday, December 04, 2001 4:55 AM
Subject: Re: physics behind EMI powerline filter
Hello Muriel,
If you add a reactive filter in a line what you conceptualy do is a short
circuit (if paralel capacitor
Hello Muriel,
If you add a reactive filter in a line what you conceptualy do is a short
circuit (if paralel capacitor) or an open circuit (if serial inductor) at
certain frequencys (the frequencys you want to regect). This transforms the
line in a sort of dipole (if open) or loop (if short)
,
Colin..
-Original Message-
From: Muriel Bittencourt de Liz
[mailto:mur...@eel.ufsc.br]
Sent: Monday, December 03, 2001 4:00 PM
To: EMC-PSTC List
Subject:physics behind EMI
Basically it depends upon the energy being reflected back
to the power supply and/or absorbed by the filter.
In either case, it dissipates into heat.
Regards, Doug McKean
---
This message is from the IEEE EMC Society Product Safety
Technical
I read in !emc-pstc that Muriel Bittencourt de Liz mur...@eel.ufsc.br
wrote (in 200112031759.aa1191510...@server-eel.eel.ufsc.br) about
'physics behind EMI powerline filter', on Mon, 3 Dec 2001:
Hello Group,
I have a long-time question, concerning the energy issues in a EMI powerline
filter
-
From: Muriel Bittencourt de Liz mur...@eel.ufsc.br
To: EMC-PSTC List emc-p...@ieee.org
List-Post: emc-pstc@listserv.ieee.org
Date: Monday, December 03, 2001 12:35 PM
Subject: physics behind EMI powerline filter
Hello Group,
I have a long-time question, concerning the energy issues in a EMI
The EUT does not generate rf emissions in the sense of generating rf energy.
It draws rf current from the bus in addition to the current at the power
frequency. The job of the EMI filter is to force the rf current draw to
remain within the EUT. It does that by providing local energy storage
Hello Group,
I have a long-time question, concerning the energy issues in a EMI powerline
filter.
I'll put a case, and ask the question after.
This is the case:
- When trying to minimize the conducted emissions from a electrical equipment /
circuit, one of the things to do is to put a
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