Re: earthline choke

I have got some good results using a choke in the safety ground (or protective earth-PE, as you wish) for reducing conducted emissions in switched mode power supplies. I also remember that I read somewhere (i think it was Clayton Paul's book) that the use of this choke on safety wire is a

standards about surge protection devices

Hello List, I friend of mine is manufacturing a device for surge protection (for residential, commercial and industrial environments) and he is interested in selling this equipment in the European Market. I'd like to know which european standards (EN's, IEC) are related to this kind of device.

Thanks to EMC-PSTC List!!

me most, but I think that I could forget someone! ;-) and it would no be just... Once again, I'd like to emphasize the importance and relevance of this list to my work and another works of research world-wide. Best Regards, Muriel Bittencourt de Liz August, 11, 2003 Florianópolis, Santa Catarina

Case: EMI from ballast (electromagnetic reactor)

confuse. Please reply to me if I have not been clear enough. Best Regards, Muriel Bittencourt de Liz This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your

About Radiated Measurements

Group, I have a doubt concerning radiated emissions measurement: - For radiated emissions measurement of switched mode power supplies using a TEM cell, should I leave the loads of the supply inside or outside the cell?? My TEM cell have filtered connections for DC loads. Thanks in advance for

limits of electrical modelling

these deficiencies of lumped circuit theory?? - Can I, only using stray resistances, capacitances and inductances, model a circuit until it's simulated behavior achieve a good aproximation with measured data? Thanks in advance and Best Regards!! Muriel Bittencourt de Liz

Difference between Receivers and Spectrum Analyzers

Hello Group, For EMC measurements (conducted and radiated emissions), electromagnetic fields measurements (via antennas), what is the difference between using a EMI Receiver or a Spectrum Analyzer?? Some guesses that I've been thinking are: - The Receiver is more accurate than the Spectrum

EMI Radiation Coupling in SMPSs

Group, I was doing some tests of conducted EMI measurements according to CISPR 22, Class B. This standard uses the 150kHz to 30MHz frequency range. The equipments under test (EUT) that I tipically use are switched mode power supplies (SMPS), mainly with flyback topology. In a number of these

Pacemaker's radiated immunity

Hello Group, Could someone confirm to us if the IEC 61000-4-3 standard is the right one to verify the radiated electromagnetic fields in pacemakers? We are using this standard and the following limits: - 80MHz-2.5GHz, 10V/m Could someone tell us if this procedure is the correct one?? Or there

Environmental question

Hello Group, We already know the standards related to human exposure to electromagnetic fields (e.g. ANSI/IEEE). However some people have asked us if there is any standard/recommendations limiting the exposure of forests, lakes/rivers, animals, etc to RF fields. Do you know any FDA and EPA (or

Re: case of units

Robert and EMC-PSTC, According to some books of physics (e.g., Halliday and Resnick) and Web pages concerning measurements: http://www.chemie.fu-berlin.de/chemistry/general/si_en.html#prefixes The right usage of kilohertz is kHz, and not KHz. Best Regards Muriel - Original Message

Pacemaker susceptibility (immunity) for RF fields

and Best Regards! Muriel Bittencourt de Liz **Group of Electromagnetic Compatibility** Universidade Federal de Santa Catarina Florianópolis, SC Brasil --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list

Conducted noise emission diagnosis device

this separator myself. Any other suggestion and comments are greatly appreciated. Best Regards, ** Muriel Bittencourt de Liz Ph.D. Student Federal University at Santa Catarina Florianópolis, SC Brazil

physics behind EMI powerline filter

energy when I add a filter?? It cannot be lost... - ... And, supposing that the energy keeps arrested inside the equipment, isn't it worse for radiated emissions?? i.e., it can increase the level of radiated emissions?? Thanks in advance for your attention. Regards, Muriel Bittencourt de Liz

Medical Equipment Compliance

Hello Group, I'd like to know what EMC Standards are used for compliance of medical equipment in Europe. I've already know that IEC 60601-1 and CISPR 11 (ISM equipment) are applicable standards. Is there any additional standard that does apply? Thanks in advance for your help. Best Regards

HVF Spec.

Hello Group, In a transformer's set of specifications that I have, there is one named HVF. Does anyone know what it means?? Thanks and Best Regards Muriel B. de Liz Post-Graduate Student, EMC for Power Electronics. --- This message is from the IEEE

Difference between SA and Receiver

Hello Group, What are the differences that result using: 1. A Spectrum Analyzer (SA) or 2. A Receiver When I make measurements of conducted emissions of an equipment?? Best Regards Muriel --- This message is from the IEEE EMC Society Product Safety

FCC Standards

Hello Group, I'd like to know what requirements apply to the following standards: - FCC 15 (47 CFR 0-19) - FCC 68 (49 CFR 40-69) Thanks in advance %% Muriel Bittencourt de Liz Electrical Engineering Department Federal University at Santa Catarina Florianópolis, SC

FCC standards

--- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single

Re: Conducted Emissions Test in Telephones

Muriel *** Muriel Bittencourt de Liz - Test Engineer Lab of Applied Electromagnetism for Engineering Dept. of Electrical Engineering Federal University at Santa Catarina State Florianópolis, Santa Catarina State Brazil In a message dated 6/28/01, Geoff Lister writes

Conducted Emissions Test in Telephones

Hello Group, I'd like to know if telephone devices (plain telephone devices) must be tested for conducted emissions (CISPR 22, Class B). And if they must, what is the proceeding for testing them? Should I test with the telephone in stand-by (no calls) or during a call?? Thanks in advance for

Doubt with conducted emissions measurement

to ask the basic questions sometimes. Well, I think that's all. Thanks in advance for those who can help me. Best Regards Eng. Muriel Bittencourt de Liz EMC Testing and Troubleshooting Group of Conception and Analysis

Detectors used in EMC testing

(equipment with DC feeding through the LISN), the three detectors are still needed? Why? - The Quasi-Peak and the Average detectors can be viewed as filters that reduce the EMI seen by the receiver? Thanks in advance for the help. Best Regards Muriel == Muriel Bittencourt de Liz - EMC Engineer Group

Re: PC's Class B..

I make my words the words of Gert. There's a lot of interesting questions that are answered privately and the group loses... Regards Muriel Gert Gremmen wrote: hello George, But we can't. Could you resume the results of the answers for the group. And : IN GENERAL Could the members

doubt on conducted emissions

receivers?? Is this the goal of the regulations imposed by the agencies (CISPR, FCC, etc.)??? Thanks in advance for the answers Regards Muriel Bittencourt de Liz Group for Conception and Analysis of Electromagnetic Devices GRUCAD/EEL/UFSC Florianópolis, SC Brazil

Information about EMC receiver

Hello Group, There are some doubts about some parameters of an EMC receiver that I'd like to understand better: - IF bandwith: What it mean/is? How do I set it up? If I have a HF signal, what IF is better? Or if I have a low freq. signal, what is the better IF? - Measurement time: If I don't

surge protection devices

Hello Group, My doubt is on the question below: If I am a manufacturer of surge protection devices for cable TV networks, what standards should I comply with (IEC, ANSI, IEEE, etc.)??? Thanks in advance Muriel Florianópolis, Brasil --- This message is

Is it Safe?

Hello Group, I'd like to know if is it safe for somebody to have his office 7 meters away from a high voltage line (132KV, 50Hz)?? The working time of the person is 8 hours a day. Thanks in advance Muriel --- This message is from the IEEE EMC Society

Re: origin of common-mode currents - part 2

Jim and everybody who answered, Thanks a lot for making this subject clear for me... One more time, the list shows all its power so solve problems, even worldwide! Best Regards Muriel --- This message is from the IEEE EMC Society Product Safety

Re: modest proposal

Group, I think this discussion of language is very important. Why? I'll speak for myself... During the last centuries/years, most of the third-world or developing countries (as you prefer) has adopted the idea of buying technologies instead of developing its own. Together with that, has come

conducted emissions test setup

(the one that's in the three pin plug) should be at the same ground than the ground plane? Thanks in advance and Regards! Muriel -- 8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-) Muriel Bittencourt de Liz, M.Sc. - EMC Engineer GRUCAD - Group for Conception Analysis

conducted emissions testing

) ###: Is it right? Well! that's all for today. Thanks in advance! Best Regards Muriel -- 8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-) Muriel Bittencourt de Liz, M.Sc. - EMC Engineer GRUCAD - Group for Conception Analysis of Electromagnetic Devices Santa Catarina Federal

Re: antenna and cable for 2.4GHz

, but potentially more gain. Does the 30 dB attenuation have to be inherent in the coax, or can you use an external pad? Answer these questions, and I can tell you exactly what to get. -- 8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-) Muriel Bittencourt de Liz, M.Sc. - EMC

antenna and cable for 2.4GHz

Bittencourt de Liz, M.Sc. - EMC Engineer GRUCAD - Group for Conception Analysis of Electromagnetic Devices Santa Catarina Federal University - UFSC PO Box: 476 ZIP: 88040-900 - Florianópolis - SC - BRAZIL Phone: +55.48.331.9649 - Fax: +55.48.234.3790 e-mail: mur...@grucad.ufsc.br ICQ#: 9089332

Re: 60 Hz Power Line Impedance

). -- == Muriel Bittencourt de Liz GRUCAD - Group for Conception Analysis of Electromagnetic Devices Santa Catarina Federal University - UFSC PO Box: 476 ZIP: 88040-900 - Florianópolis - SC - BRAZIL Phone: +55.48.331.9649 - Fax: +55.48.234.3790 e-mail: mur...@grucad.ufsc.br ICQ#: 9089332 Alternativa

broadband narrowband emissions

Regards Muriel -- == Muriel Bittencourt de Liz GRUCAD - Group for Conception Analysis of Electromagnetic Devices Santa Catarina Federal University - UFSC PO Box: 476 ZIP: 88040-900 - Florianópolis - SC - BRAZIL Phone

Re: Doubt on household equipment interference

, the interference may be due to radiated emissions. George -Original Message- From: Muriel Bittencourt de Liz [mailto:mur...@grucad.ufsc.br] Sent: Wednesday, September 01, 1999 12:55 PM To: Lista de EMC da IEEE Subject: Doubt on household equipment interference Dear Members I'd

Doubt on household equipment interference

Bittencourt de Liz GRUCAD - Conception Analysis of Electromagnetic Devices Group Federal University of Santa Catarina PO Box: 476 ZIP: 88040-900 - Florianópolis - SC - BRAZIL Phone: +55.48.331.9649 - Fax: +55.48.234.3790 e-mail: mur...@grucad.ufsc.br ICQ#: 9089332 - This message is coming from

Doubt on radiated emissions measurements

is with the vendor.. If someone has experience with this, please feel free to do any comments... Regards Muriel -- == Muriel Bittencourt de Liz GRUCAD - Conception Analysis of Electromagnetic Devices Group Federal University of Santa Catarina

Meters and Monitors for ELF-VLF

-mail directly to me. Thanks in advance for the ones who can help. Best Regards Muriel -- == Muriel Bittencourt de Liz GRUCAD - Conception Analysis of Electromagnetic Devices Group Federal University of Santa Catarina PO Box: 476

EMC Safety Standards

help! Best Regards, Muriel -- == Muriel Bittencourt de Liz GRUCAD - Grupo de Concepção e Análise de Dispositivos Eletromagnéticos Universidade Federal de Santa Catarina Caixa Postal - 476 88040-900

Re: double the pleasure

administrators). -- == Muriel Bittencourt de Liz GRUCAD - Grupo de Concepção e Análise de Dispositivos Eletromagnéticos Universidade Federal de Santa Catarina Caixa Postal - 476 88040-900 - Florianópolis - SC - BRASIL Fone

Outlet types

equipment.. Thanks in advance Muriel -- == Muriel Bittencourt de Liz GRUCAD - Grupo de Concepção e Análise de Dispositivos Eletromagnéticos Universidade Federal de Santa Catarina Caixa Postal - 476 88040-900 - Florianópolis - SC

Re: Brazilian Standards

with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, j...@gwmail.monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). -- == Muriel Bittencourt de Liz INEP - Instituto

Re: Doubt on LISN utilization

administrators). -- == Muriel Bittencourt de Liz INEP - Instituto de Eletronica de Potencia Universidade Federal de Santa Catarina Caixa Postal - 5119 88.040-970 - Florianopolis - SC - BRASIL Phone: +55.48.331.9204 - Fax: +55.48.234.5422 e

Doubt on LISN utilization

Hello All, I have a LISN from EMCO and it has a Ground Choke. What's the goal of this Ground Choke? Is it really needed in the conducted measurements? Could somebody make this clear to me? Thanks in advance Muriel -- == Muriel Bittencourt de

Doubt on LISN utilization

doing right? # is it possible to use a transformer? # isn't the transformer acting like a unintentional filter? Any help will be welcome. Sincerely Muriel -- == Muriel Bittencourt de Liz INEP - Instituto de Eletronica de Potencia Universidade

Information on lighting electronic transformer

with this? Best Regards Muriel -- == Muriel Bittencourt de Liz INEP - Instituto de Eletronica de Potencia Universidade Federal de Santa Catarina Caixa Postal - 5119 88.040-970 - Florianopolis - SC - BRASIL Phone: +55.48.331.9204 - Fax

LISN for CISPR 22

Hello I'd like to know if anyone could pass me the schematic of the LISN used for CISPR22 measurements, with the value of inductors, capacitors and resistors. Thanks Muriel -- == Muriel Bittencourt de Liz INEP - Instituto de Eletronica de

Info on ballast requirements

-- == Muriel Bittencourt de Liz INEP - Instituto de Eletronica de Potencia Universidade Federal de Santa Catarina Caixa Postal - 5119 88.040-970 - Florianopolis - SC - BRASIL Phone: +55.48.331.9204 - Fax: +55.48.234.5422 e-mail: mur...@inep.ufsc.br Homepage: http://www.inep.ufsc.br

Info on EMI Filters

information will be welcome. Muriel -- == Muriel Bittencourt de Liz INEP - Instituto de Eletronica de Potencia Universidade Federal de Santa Catarina Caixa Postal - 5119 88.040-970 - Florianopolis - SC - BRASIL Phone: +55.48.331.9204 - Fax

Software for EMI filter design

Hello Does anyone have any information about a software for EMI filter design? Any information will be welcome. Sincerely Muriel -- == Muriel Bittencourt de Liz INEP - Instituto de Eletronica de Potencia Universidade Federal de Santa

[Fwd: Information]

-- Muriel Bittencourt de Liz - Mestrando Instituto de Eletronica de Potencia Universidade Federal de Santa Catarina Caixa Postal - 5119 88.040-970 - Florianopolis - SC - BRASIL Phone: +55.48.331.9204 - Fax: +55.48.234.5422 e-mail: mur...@inep.ufsc.br/Internet:www.inep.ufsc.br---BeginMessage

Information

: run-time error 6 - overflow. Could anyone help me with these?? -- Muriel Bittencourt de Liz - Mestrando Instituto de Eletronica de Potencia Universidade Federal de Santa Catarina Caixa Postal - 5119 88.040-970 - Florianopolis - SC - BRASIL Phone: +55.48.331.9204 - Fax: +55.48.234.5422 e-mail