Ground fault circuit interrupter with enhanced radio frequency interference suppression
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United States of America Patent
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May 20, 2008
Grant Date -
Jan 26, 2006
app pub date -
Apr 1, 2005
filing date -
Apr 12, 2004
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A ground fault circuit interrupter device having a feedthrough capacitor for substantially reducing interference from radio frequency signals such as those emitted from cell phones and 2-way radios. The ground fault circuit interrupter device includes a printed circuit board having a system ground terminal and a detection terminal for receiving a fault detection signal. A chip is provided having a ground pin connected to the system ground terminal and an input pin for receiving the fault detection signal. The feedthrough capacitor has a through conductor connected between the input pin and the detection terminal and a capacitor coupled between the through conductor and the system ground terminal.
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