Este circuito puede ser utilizado como fuente de señales para generadores de diversos tipos, sirenas o aún instrumentos musicales. Como muestra la figura, sólo se utiliza un amplificador operacional 741, que viene de la fuente de una fuente simétrica de 9 V. La frecuencia de funcionamiento del circuito y por lo tanto de las señales obtenidas, depende de los valores de los componentes del doble T. La fórmula es la siguiente:

f = 1 / ( 2πR1 x C1 )

    Los capacitores de doble T, así como los resistores, deben mantener las siguientes relaciones de valores:

C1 = C2 = C3 / 2

R1 = R2 = 2R3

    El potenciómetro colocado en el circuito de realimentación es para el ajuste del punto de oscilación. En el ejemplo dado, con los valores citados en el diagrama, la frecuencia de oscilación estará cerca de 1 kHz.

 


| Haga click en la imagen para ampliar |

 

 

18.812MBMemory Usage46.36msRequest Duration
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