PON transceiver with a surge protection circuit

Details PON transceiver with a surge protection circuit PON transceiver with a surge protection circuit

2008-03-07

2010-12-21

Leja, Ronald W (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

High voltage dissipation

Reexamination Certificate

active

07855867

ABSTRACT:
A passive optical network transceiver including a surge protection circuit so as to protect the electro-optical circuitry from lightning or other electrical surges. The surge protection circuit includes a ground line and at least one capacitor provided in a first line. In particular, the capacitance value of the capacitor is such as to limit the surge current in the first line, and the breakdown voltage of the capacitor is such as to limit the surge voltage between the first line and the ground line. In one embodiment, the surge protection circuit includes a second line connecting the first line to the ground line and at least one inductor provided in the second line. The surge protection circuit may include one capacitor with small value and high voltage rating, and multiple capacitors with larger value and lower voltage rating.

REFERENCES:
patent: 5815359 (1998-09-01), Maytum et al.
patent: 5844761 (1998-12-01), Place, IV
patent: 7039329 (2006-05-01), Kenny
patent: 7123463 (2006-10-01), Devine et al.
patent: 2003/0147601 (2003-08-01), Bartur et al.
patent: 2007/0291777 (2007-12-01), Jamieson et al.
patent: 2008/0159744 (2008-07-01), Soto et al.
patent: 2009/0225488 (2009-09-01), Lou et al.
patent: 2010/0150556 (2010-06-01), Soto et al.

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