{"id":21694,"date":"2018-03-09T09:11:35","date_gmt":"2018-03-09T09:11:35","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/diseno-de-baja-tension-de-moduladores-sigma-delta-paso-banda\/"},"modified":"2018-03-09T09:11:35","modified_gmt":"2018-03-09T09:11:35","slug":"diseno-de-baja-tension-de-moduladores-sigma-delta-paso-banda","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/sevilla\/diseno-de-baja-tension-de-moduladores-sigma-delta-paso-banda\/","title":{"rendered":"Dise\u00f1o de baja tensi\u00f3n de moduladores sigma-delta paso-banda"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Alfredo P\u00e9rez Vega-leal <\/strong><\/h2>\n<p>En los \u00faltimos a\u00f1os, la demanda de equipos port\u00e1liles crece sin parar. la vida de estos equipos depende de las bater\u00edas, por lo que una disminuci\u00f3n en el consumo de energ\u00eda por parte de los circuitos de estos equipos se ha convertido en el principal caballo de batalla. A la hora de la conversi\u00f3n ad, los moduladores sigma-delta pueden alcanzar los elevados rangos din\u00e1micos necesarios para la detecci\u00f3n de una se\u00f1al en presencia de fuertes componentes de ruidos en frequencias adyacentes. Una vez convertida la se\u00f1al, un filtro digital puede eliminar tanto el ruido interferente como el error de cuantizaci\u00f3n.  en esta tesis se describe el dise\u00f1o de distintas celdas de baja tensi\u00f3n para la realizaci\u00f3n de amplificadores operacionales clase ab as\u00ed como el dise\u00f1o de un modulador sigma-delta paso-banda que alcanza una resoluci\u00f3n de 13,5 bits, en una banda de 16khz y un consumo de 500uw. Un prototipo experimental se ha dise\u00f1ado y se ha fabricado en una tecnolog\u00eda de 0,35 um cmos para probar el funcionamiento de las celdas de baja tensi\u00f3n.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Dise\u00f1o de baja tensi\u00f3n de moduladores sigma-delta paso-banda<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Dise\u00f1o de baja tensi\u00f3n de moduladores sigma-delta paso-banda <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Alfredo P\u00e9rez Vega-leal <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Sevilla<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 20\/02\/2003<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Antonio  Jes\u00fas Torralba Silgado<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: alfonso Carlosena Garc\u00eda <\/li>\n<li>noel Tombs jonathan (vocal)<\/li>\n<li>Andr\u00e9s Garcia alonso montoya (vocal)<\/li>\n<li>Antonio Hernandez ballester (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Alfredo P\u00e9rez Vega-leal En los \u00faltimos a\u00f1os, la demanda de equipos port\u00e1liles crece sin parar. la vida [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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