lunes, mayo 12, 2008

Conversor Voltaje a Corriente


Una de las aplicaciones que tienen los amplificadores operacionales son los conversores de voltaje a corriente , es decir un voltaje de entrada puede utilizarse para controlar una corriente de salida. estos circuitos son muy utilizados en diversos circuitos de instrumentacion.
El circuito de la figura cuenta con dos buffer o seguidores de emisor la corriente de salida IL es igual a R2/(R1*R3)*Vi, si R1=R2=R3=R entonces simplemente IL=Vi/R. las ecuaciones del analisis del circuito se indican en la figura.

20 comentarios:

Anónimo dijo...

oye muchisismas grasias por tu contribucion.
soy estudiante de ing electronica y andaba buscando un convertidor de voltaje - corriente y como no tenia mis apuntes me puse a buscar y solo encontre este lugar, la verdad me sacast de un apuro
mucha grasias por tu contribucion

Anónimo dijo...

gracias amigo, yo lo estaba haciendo con un buffer y nu m daba la corriente ideal, pero ya pude, y lo necesitaba para mmi clase d instrumentacion,

Anónimo dijo...

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Anónimo dijo...

Ola, what's up amigos? :)
Hope to receive some assistance from you if I will have any quesitons.
Thanks in advance and good luck! :)

electronica fm dijo...

queria saber si los operacionales en este caso necesitaban fuente partida , gracias por la ayuda

Anónimo dijo...

Aunque el resultado no es concluyente, probé una simulación en PROTEUS y aparentemente la fuente debe de ser dual. La que usé es +12 y -12, la entrada es positiva.

Anónimo dijo...

menuda paju de circuito....


porcierto, quye la notación sea coherente en el esquema por favor! que coño es VI??

Anónimo dijo...

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