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(Beginner) Spark gap- Transient voltage suppression

Discussion in 'Electronic Basics' started by Ant_Magma, Feb 19, 2006.

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  1. Ant_Magma

    Ant_Magma Guest

    Hi guys.

    I'm currently building a power line modem.

    In this picture taken from MAXIM/DALLAS' MAX2980 AFE datasheet
    http://geocities.com/Antonio_Magma/sparkgap.JPG

    There's this sparkgap just before the powerline at the upper right of
    the picture.

    I've done some searching and i realise there are many types of voltage
    suppresion methods and components, such as transient voltage
    suppression diodes, transils, varistos etc.

    Which one should i be using? The breakdown voltages should be at 240V
    right?

    My circuit is to be connected to a 50/60Hz 240V AC power line. I'm
    transmitting at 4Mhz-20Mhz

    Please advise. Thanks.
     
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