Surge protection apparatus and methods
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United States of America Patent
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May 15, 2012
Grant Date -
Oct 1, 2009
app pub date -
Mar 28, 2008
filing date -
Mar 28, 2008
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Improved over-voltage protection apparatus and associated methods useful in e.g., telecommunications applications. In one embodiment, the over voltage protection apparatus comprises a gas discharge tube, common mode inductor, coupled inductor, secondary over-voltage protection device, filter circuitry, coupled inductor and common mode inductor. In one embodiment the over voltage protection apparatus comprises a gas discharge tube, common mode inductor, coupled inductor, secondary over-voltage protection device and filter circuitry. The arrangement of said inductive components being optimally connected in such a manner as to provide a high impedance circuit for all surge events to the gas discharge tube, so as to protect the filtering circuitry. Methods for the manufacture of the filter protection apparatus so as to be maximally independent of component tolerances are also disclosed.
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