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Objetivos: -.experimentar el SCR,modo de mando horizontal o vertical.
Proceso de trabajo con mando vertical
1.-Ajustar P1 al mínimo.Medir tensiones en la puerta,entre ánodo y kátodo y medir tensión en la carga.Medir o calcular la corriente en la carga.
2.-Variar el potenciómetro hasta que se dispare el tiristor.Anotar la tensión de la puerta a la que se dispara.Anotar la Vak y la caida de tensión e intensidad en la carga.
3.-Volver nuevamente P1 al mínimo estando el SCR conduciendo y comprovar que el SCR sigue conduciendo.Verificar que las medidas anteriores siguen dándose.
4.-Experimentar el modo de bloqueo del tiristor abriendo el circuito de alimentación.Pasados unos segundos,volver a repetir las pruebas.
Proceso de trabajo con mando horizontal
1.-Girar P1 a un extremo y observar el brillo de la laámpara.
2.-Ajustar P1 para que la lámpara brille a la mitad.
3.-Visualizar los oscilogramas de entrada de L,G y del tiristor entre A-K.
4.-Comprobar las variaciones que se producen en estas señales al variar P1.
5.-Hacer unas memorias de esta práctica.
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Enviado por: Amador Aparicio Idioma: castellanoPaís: España