Electronic signal filter with surge protection mechanism
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 6, 2003
Grant Date -
N/A
app pub date -
Sep 1, 2000
filing date -
Sep 1, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An electronic signal filter is provided that includes a metal housing which has been adapted to be electrically grounded, and a circuit board positioned within the housing. The circuit board includes a first area and a second area, and has an electrically conductive trace formed on a portion of a top surface of the circuit board that provides electrical communication between the first and second areas of the circuit board. The filter further includes a metal shield connected to the housing, located between the first and second areas of the circuit board. The metal shield extends in a direction substantially perpendicular to the plane of the circuit board and has a slot formed therein for receiving the portion of the circuit board on which the electrically conductive trace is formed. The slot is dimensioned to provide a space between the metal shield and the conductive trace. The dimension of the space is selected to shunt current passing through the conductive trace to ground in the event of a voltage surge passing through the filter.
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