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PREINFORME DE LABORATORIO No.3
DISEÑO Y MONTAJE DE UN AMPLIFICADOR CON UN TRANSISTOR BJT EN EMISOR COMUN, EN REGIMEN DE PEQUEÑA SEÑAL Y EN FRECUENCIA INTERMEDIA.
PRESENTADO POR:
FACULTAD DE INGIENERIA DE TELECOMUNICACIONES
UNIVERSIDAD SANTO TOMAS
MEDELLIN, ANTIOQUIA
2003
OBJETIVOS
Verificar la importancia de trabajar en régimen de pequeña señal y en frecuencia intermedia.
Verificar la aparición de armónicos íntermodulares y entender por que la geometría de las señales de salida del amplificador se deforman y por que se deforman de una manera tan especial.
Verificar el principio de superposición en las señales presentes en el sistema, cuando se trabaja en régimen de pequeña señal.
Aplicar algunas técnicas para disminuir el contenido armónico de las señales de salida del amplificador.
Comprender a cabalidad el concepto de impedancia de entrada y de salida, corroborar los efectos de estos parámetros al conectarle fuentes y cargas externas al amplificador.
Cálculos para el circuito.
Grafica de Vce.
En esta grafica podemos notar que el voltaje oscila sobre el componente de 8V, que es el valor que nosotros tomamos para Vce.
Grafica de Ic
En la grafica de Ic se ve la oscilación aproximada sobre los 20mA, sugeridos en los cálculos.
Grafica de VL.
BIBLIOGRAFIA.
TERCERA EDICION. (DONALD L. SHILLING - CHARLES BELOVE).
EDITORIAL MC. GRAW HILL.
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Enviado por: Maquina Idioma: castellanoPaís: Colombia