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Utilize este identificador para citar ou criar um link para este item: http://acervodigital.unesp.br/handle/11449/36323
Título: 
Model for electrodes' filaments of hot cathode fluorescent lamps, during preheating with constant rms current
Autor(es): 
Instituição: 
Universidade Estadual Paulista (UNESP)
ISSN: 
0885-8993
Resumo: 
This paper presents a new model for the representation of electrodes' filaments of hot-cathode fluorescent lamps, during preheating processes based on the injection of currents with constant root mean square (rms) values. The main improvement obtained with this model is the prediction of the R-h/R-c ratio during the preheating process, as a function of the preheating time and of the rms current injected in the electrodes. Using the proposed model, it is possible to obtain an estimate of the time interval and the current that should be provided by the electronic ballast, in order to ensure a suitable preheating process. is estimate of time and current can be used as input data in the design of electronic ballasts with programmed lamp start, permitting the prediction of the R-h/R-c ratio during the initial steps of the design (theoretical analysis and digital simulation). Therefore, the use of the proposed model permits to reduce the necessity of several empirical adjustments in the prototype, in order to set the operation of electronic ballasts during the preheating process. This fact reduces time and costs associated to the global design procedure of electronic ballasts.
Data de publicação: 
1-Mai-2007
Citação: 
IEEE Transactions on Power Electronics. Piscataway: IEEE-Inst Electrical Electronics Engineers Inc., v. 22, n. 3, p. 719-726, 2007.
Duração: 
719-726
Publicador: 
Institute of Electrical and Electronics Engineers (IEEE)
Palavras-chaves: 
  • electrodes' filaments
  • electronic ballasts
  • fluorescent lamp model
  • preheating process
Fonte: 
http://dx.doi.org/10.1109/TPEL.2007.896433
Endereço permanente: 
Direitos de acesso: 
Acesso restrito
Tipo: 
outro
Fonte completa:
http://repositorio.unesp.br/handle/11449/36323
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