Anti-lightning protection for telephone connection
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United States of America Patent
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Apr 1, 2014
Grant Date -
Dec 8, 2011
app pub date -
Jun 6, 2011
filing date -
Jun 8, 2010
priority date (Note) -
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Abstract
A structure for protecting a circuit connected to first and second rails of a telephone connection against overvoltages, including: first and second diodes in anti-series between the first and second rails; a first capacitor in parallel with a first resistor between a first node common to the first and second diodes and a low voltage reference node; and a protection element capable of removing fast overvoltages between any of the rails and the low reference voltage node when these overvoltages exceed a first threshold associated with the voltage of the first node.
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