166536610-Informe-Previo-4.docx - UNIVERSIDAD NACIONAL MAYOR DE SAN MARCOS 10 U N M S M(Universidad del Perú DECANA DE AMÉRICA FACULTAD DE Ingeniería

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UNIVERSIDAD NACIONAL MAYOR DE SAN MARCOS ( Universidad del Perú , DECANA DE AMÉRICA ) FACULTAD DE Ingeniería Electrónica, Eléctrica y Telecomunicaciones E.A.P INGENIERÍA ELECTRÓNICA INFORME #4 ALUMNO: Rojas Bardales Mayron Alexander 10190092 PROFESOR: Ing. Morales San Miguel Eloy CURSO: Laboratorio Circuitos Electrónicos II CICLO: 2012-1 CIUDAD UNIVERSITARIA, Abril 2012 Laboratorio N° 4 10 U N M S M

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RESPUESTA EN BAJA FRECUENCIA DE UN AMPLIFICADOR DE UNA SOLA ETAPA OBJETIVO Investigar sobre la influencia de los condensadores de acoplo y desacoplo sobre el punto de corte inferior de un amplificador de audio. INFORME PREVIO 1. En el circuito calcula V B , V CEQ , I CQ . Rbb = R 1 R 2 R 1 + R 2 = 12 x 56 12 + 56 = 9.882 Vbb = Vcc R 2 R 1 + R 2 = 12 12 12 + 56 = 2.118 V
Vbb = IbRbb + Vbe + IeRe Vbb = Ic β Rbb + Vbe +ℜ ( Ic + Ib ) Vbb = Ic β Rbb + Vbe +ℜ ( Ic + Ic β ) Icq = β ( Vbb Vbe ) Rbb +ℜ( 1 + β ) = 100 ( 2.118 0.7 ) 9.882 + 0.69 ( 1 + 100 ) = 1.782 mA Vb = Vbe + IeRe Vb = Vbe +ℜ ( Ic + Ic β ) = 0.7 + 0.69 x 1.782 x 1.01 = 1.942 V Vcc = IcRc + Vce + IeRe Vcc = IcRc + Vce +ℜ ( Ic + Ib ) Vcc = IcRc + Vce +ℜ ( Ic + Ic β ) Vceq = Vcc Ic [ Rc +ℜ ( 1 + 1 β ) ] =

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• Spring '19
• Ruseel
• Punto, Ingeniería eléctrica, Ingeniería electrónica, Universidad Nacional Mayor de San Marcos

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