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Choke, toroidal

Discussion in 'Wiki' started by derekleffew, Sep 13, 2008.

  1. derekleffew

    derekleffew Resident Curmudgeon Senior Team Premium Member

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    Las Vegas, NV, USA
    An iron core, wrapped with copper wire (much like a transformer) used to lengthen the rise time on phase-control dimmers, and thus reduce filament sing and RFI interference.

    The picture below shows two chokes (the penny-colored donut-shaped things) in an ETC Sensor D20 dual 20A dimmer module.

    See also Choke, filter. The toroid (doughnut) is the most common but there are other shapes.

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    Last edited: May 26, 2009

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