{"id":4349,"date":"1994-01-01T00:00:00","date_gmt":"1994-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/1994\/01\/01\/concepcion-desarrollo-y-explotacion-de-un-sistema-para-la-caracterizacion-experimental-de-espejos-de-corriente\/"},"modified":"1994-01-01T00:00:00","modified_gmt":"1994-01-01T00:00:00","slug":"concepcion-desarrollo-y-explotacion-de-un-sistema-para-la-caracterizacion-experimental-de-espejos-de-corriente","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica\/concepcion-desarrollo-y-explotacion-de-un-sistema-para-la-caracterizacion-experimental-de-espejos-de-corriente\/","title":{"rendered":"Concepcion, desarrollo y explotacion de un sistema para la caracterizacion experimental de espejos de corriente"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Sergio Diez Garcia <\/strong><\/h2>\n<p>Este trabajo analiza las alternativas disponibles para obtener con alta precision las caracteristicas de transferencia de corriente en regimen estacionario de espejos de corriente. Se propone un principio instrumental donde la diferencia absoluta entre las corrientes de entrada y salida del espejo, se mide directamente, mediante un puente activo controlado en corriente.  tambien se desarrolla un metodo de operar el puente, en el que se toman dos juegos consecutivos de medidas en dos configuraciones de circuito diferentes. Esto proporciona un sistema de ecuaciones que permite eliminar la mayoria de los errores experimentales.  esta circuiteria especial, se combina con instrumentos convencionales formando un sistema automatico hp-ib de adquisicion de datos.  el rango de corrientes de entrada es desde 100.10 elevado a -9 a hasta 10.10 elevado a -3 a. La tension de salida abarca desde 1 hasta 10 voltios. La sensibilidad del sistema para la corriente de desequilibrio es de 10e- 15 a.  son ensayadas las configuraciones de widlar, wilson y wilson mejorada. La desviacion de la ganancia unidad es medida en 65 puntos cubriendo el rango de corrientes especificado.  se desarrolla tambien otro sistema para medir pares basicos. Se denomina asi la pareja de transistores basicos del espejo operados con tension vcb=0 y suministro separado de corriente de base. Se ensayan en el los pares basicos correspondientes a los espejos ya ensayados.  se ofrecen conjuntos procesados de los resultados obtenidos. Adicionalmente se dise\u00f1a y prueba un metodo numerico para calcular el comportamiento dinamico para peque\u00f1as se\u00f1ales de bf, a partir de los datos de regimen estacionario.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Concepcion, desarrollo y explotacion de un sistema para la caracterizacion experimental de espejos de corriente<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Concepcion, desarrollo y explotacion de un sistema para la caracterizacion experimental de espejos de corriente <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Sergio Diez Garcia <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Navarra<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1994<\/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> Sanchez Rodriguez Juan  Jose<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Manuel Fuentes Perez <\/li>\n<li>Rafael De Agapito Serrano (vocal)<\/li>\n<li>Santiago Alvarez Perez (vocal)<\/li>\n<li>Javier Gracia Gaudo (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Sergio Diez Garcia Este trabajo analiza las alternativas disponibles para obtener con alta precision las caracteristicas de [&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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