Escalabilidade de fonte de alimentação chaveada para uso em eletrodomesticos / Switch mode power supply scalability fo use in home appliances

AUTOR(ES)
DATA DE PUBLICAÇÃO

2009

RESUMO

This work describes the development of a switch mode power supply to be used at home appliances, capable to deliver three outputs with voltage and power different levels, changing a minimum number of components between them. At the first part of the work is presented the application of the power supply and its needs, followed by the specifications and choose of the topology and the operation mode. Continuing the design of the power supply s project, it is presented the methodology adopted to calculate and select the components to be used. With the components selected, it is presented the components selection criteria looking the scalability strategy. Ending the component s calculation and selection, the power supply schematic and the components that change according to the used version are shown. After the design, experimental results of the output cross regulation, main waveforms of voltage and current, efficiency and transient response of the three versions considering different AC Mains voltages are shown. Closing the experimental results, the EMI/EMC tests are presented, presenting the preliminary results, followed by the adopted modifications and solutions. The last chapter presents the conclusions and the perspectives of new developments of this work

ASSUNTO(S)

electronic apparatus and appliances switching theory teoria de comutação aparelhos e materiais eletronicos - abastecimento de energia eletrodomesticos flyback

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