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ANALÓGICA
En el circuito siguiente,vcc=30v,R=1.2k, y Vz=20v. ¿Cuál es la corriente del Zener con cada una de las corrientes de carga? A).0 mv, B)4mv, C)8mv.¿Con cual de las corrientes de carga disipa el Zener la mayor cantidad de potencia?
Is= (Ventrada-Vz)/Rs ; Is=(30-20)/1.2=8.33 mA
Iz=Is-IL=8.33-0=8.33 mA
Iz=Is-IL=8.33-4=4.33 mA
Iz=Is-IL=8.33-8=0.33 mA
El diodo zener disipa más potencia cuando la corriente por la carga es más pequeña, porque de la corriente que pasa por la resistencia Rs, una pequeña corriente es consumida por la carga, y el resto pasa por el diodo zener. Disiparía más potencia en el caso “a”.
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Enviado por: El remitente no desea revelar su nombre Idioma: castellanoPaís: España