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Ask an Expert Forum Buscando transformador para montaje en PCB
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Buscando transformador para montaje en PCB

Former Member
Former Member over 9 years ago

Buen día a todos, estoy diseñando un circuito para medir el voltaje de AC de la toma eléctrica y procesarlo con un fpga, pero necesito un transformador cuya salida sea proporcional al voltaje de entrada, me explico, si es un transformador de 120V a 12V que cuando varíe la entrada lo haga la salida de manera proporcional, es decir, si el Vin baja a 60V la salida sean 6V.

 

Estuve revisando la página y me tope con estos transformadores, que son lo ideal para mi proyecto ECO2003-1,5S12 - BLOCK - Transformador de Aislamiento, EI 30 x 12.5, 1.5 VA, 1 x 230V, 1 x 12V, ECO 2003 Series | Newark… 

 

Solo que tengo esa duda, si la salida cambia dependiendo de la entrada o si la mantiene fija a 12 sin importar que baje el voltaje de entrada.

 

Muchas gracias por su tiempo y ayuda.

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  • guss
    0 guss over 9 years ago

    Si los transformadores de ese tipo tienen una salida proporcional a la entrada bajo la siguiente relación

     

    Esto es siempre se cumple :

    Vp.Ip=Vs .Is

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  • marizcal
    0 marizcal over 9 years ago in reply to guss

    Es correcto lo que comenta Agustín, la potencia se mantiene.

     

    El transformador que buscas tiene una relación 10:1, debes de conectarlo adecuadamente porque si lo haces en el otro sentido, 120 V en el primario,  tendrás un voltaje de 1,200 V en el secundario.

     

    Contestando tu duda, siempre se mantendrá esa relación.

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