Análise e projeto de um boost PFC + ZAHB para luminárias led CA-CC

Detalhes bibliográficos
Ano de defesa: 2021
Autor(a) principal: Pedroso, Douglas Araujo
Orientador(a): Não Informado pela instituição
Banca de defesa: Não Informado pela instituição
Tipo de documento: Dissertação
Tipo de acesso: Acesso aberto
Idioma: por
Instituição de defesa: Universidade Federal de Santa Maria
Brasil
Engenharia Elétrica
UFSM
Programa de Pós-Graduação em Engenharia Elétrica
Centro de Tecnologia
Programa de Pós-Graduação: Não Informado pela instituição
Departamento: Não Informado pela instituição
País: Não Informado pela instituição
Palavras-chave em Português:
LED
Link de acesso: http://repositorio.ufsm.br/handle/1/22708
Resumo: This master’s thesis presents the analysis and design of a two-stage 100W and universal input ac-dc LED driver. The driver’s front-end topology is composed by a PFC (Power Factor Corrector) boost converter whereas the back-end deploys and Zeta Asymmetrical Half-Bridge converter (ZAHB). The document complies a short overview on the LED general concepts and relevant metrics and standards followed by a deep literature review which includes several different topologies classified by their number of stages and disposition. A trade-off analysis considering a myriad of relevant characteristics for a LED driver is performed among all the candidate topologies and, as the outcome, the PFC boost + ZAHB two-stage combination is selected. A detailed design process and analysis on both topologies is presented and the point of operation selection is done based on balancing volume and efficiency of each stage. Finally, outcome results from the design process are presented in order to validate it and show the driver’s compliance with the most relevant standards on energy and light quality.