Low capacitance surge protector for high speed data transmission
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United States of America Patent
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Jul 16, 2002
Issued Date -
N/A
app pub date -
Dec 5, 2000
filing date -
May 29, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention is a surge protector circuit and method of protecting electronic equipment which do not load down a circuit at high frequencies and do not degrade a signal in high speed data transmission. A gas tube is connected in parallel with low capacitance diodes and an avalanche semiconductor device, such as a TVS. The diodes and the avalanche semiconductor clamp the voltage transient and allow the slower gas tube more time to fire, discharging the surge. The addition of the low capacitance diodes in series with the avalanche semiconductor, reduces the line-to-line and line-to-ground capacitances of the surge protector and keeps the surge protector circuit from loading down the rest of the circuit and degrading the signal.
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