Ageing Platform for EMC Testing

Detalhes bibliográficos
Autor(a) principal: Alcafache, Joaquim Pedro Antunes
Data de Publicação: 2016
Tipo de documento: Dissertação
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10316/97084
Resumo: Dissertação de Mestrado em Engenharia Eletrotécnica e de Computadores apresentada à Faculdade de Ciências e Tecnologia da Universidade de Coimbra.
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spelling Ageing Platform for EMC TestingElectromagnetic CompatibilityElectromagnetic InterferenceAgeing and EMC PlatformConducted EmissionsDissertação de Mestrado em Engenharia Eletrotécnica e de Computadores apresentada à Faculdade de Ciências e Tecnologia da Universidade de Coimbra.Switching power supplies generate electromagnetic interference due to of their inherent design characteristics. Internal switching power supply circuits that generate undesirable emissions that are rich in harmonics can cause electrical interference both internally to the circuit in which the power supply is installed and to other electronic equipment in the vicinity of the emission source. The work of this thesis was to evaluate how ageing could affect the conducted emissions of a device and if with the ageing of the device, the limits regarding conducted emissions, imposed by the Comité International Spécial des Perturbations Radioélectriques continue to comply, otherwise the devices will become non-compliant according to the Community Directive of EMC. The devices tested were switching-mode power supplies, usually used in desktop computers. To start they were under tests for conducted emissions. All the test were done in a proper site and with all the standards that are inherent to such tests. To age the devices a platform were created, the acceleration life condition selected was power cycling. The application of this method leads to an electrical ageing of the equipment and it basically consists in turn the power of the devices under test On and Off repeatedly, during certain period of time. The major advantage is that with the use of this technique the time needed to age an equipment is largely reduced when compared with a normal usage. In the end of the test there was a modification of the spectrum, what indicates that the platform created can change the emissions of the devices under test. By analyzing the results it was verified that the ageing affect these emissions, however it was not enough to make the device noncompliant. According to the results obtained conclusions were taken about how the ageing of a device may lead to an increase in the conducted emissions.2016-07info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesishttp://hdl.handle.net/10316/97084http://hdl.handle.net/10316/97084engAlcafache, Joaquim Pedro Antunesinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-05-25T09:38:25Zoai:estudogeral.uc.pt:10316/97084Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:15:12.495137Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Ageing Platform for EMC Testing
title Ageing Platform for EMC Testing
spellingShingle Ageing Platform for EMC Testing
Alcafache, Joaquim Pedro Antunes
Electromagnetic Compatibility
Electromagnetic Interference
Ageing and EMC Platform
Conducted Emissions
title_short Ageing Platform for EMC Testing
title_full Ageing Platform for EMC Testing
title_fullStr Ageing Platform for EMC Testing
title_full_unstemmed Ageing Platform for EMC Testing
title_sort Ageing Platform for EMC Testing
author Alcafache, Joaquim Pedro Antunes
author_facet Alcafache, Joaquim Pedro Antunes
author_role author
dc.contributor.author.fl_str_mv Alcafache, Joaquim Pedro Antunes
dc.subject.por.fl_str_mv Electromagnetic Compatibility
Electromagnetic Interference
Ageing and EMC Platform
Conducted Emissions
topic Electromagnetic Compatibility
Electromagnetic Interference
Ageing and EMC Platform
Conducted Emissions
description Dissertação de Mestrado em Engenharia Eletrotécnica e de Computadores apresentada à Faculdade de Ciências e Tecnologia da Universidade de Coimbra.
publishDate 2016
dc.date.none.fl_str_mv 2016-07
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10316/97084
http://hdl.handle.net/10316/97084
url http://hdl.handle.net/10316/97084
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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