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Estudo de fontes por comutação by Martins de Medeiros, Decio

Estudo de fontes por comutação

by Decio Martins de Medeiros
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Book cover type: Paperback
  • ISBN13: 9798314018101
  • Binding: Paperback
  • Subject: N/A
  • Publisher: Independently Published
  • Publisher Imprint: Independently Published
  • Publication Date:
  • Pages: 140
  • Original Price: USD 21.0
  • Language: Portuguese
  • Edition: N/A
  • Item Weight: 195 grams
  • BISAC Subject(s): Electrical

Este trabalho de gradua��o enfoca dois tipos de fontes por comuta��o: um tipo a transistor baseado no sistema por modula��o em largura de pulsos, e outro tipo a S.C.R. baseado no sistema por controle do angulo de fase de disparo. � feito um estudo de ambos os tipos chegando-se a conclus�o de que, para se atender aos requisitos de funcionamento como fonte de alimenta��o de um receptor de televis�o, a fonte a S.C.R. � mais adequada, haja vista que fornece uma tens�o de sa�da regulada, da ordem de 110V para 1A de carga, e para tens�es de rede desde 90 Vrms at� 240 Vrms, eliminando-se assim a necessidade do uso do transformador de for�a. � importante destacar que tal fonte � mais econ�mica que as fontes reguladas convencionalmente utilizadas nos receptores de televis�o da �poca.

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