Overvoltage protection circuits

Details Overvoltage protection circuits Overvoltage protection circuits

1996-05-17

1997-04-22

Gaffin, Jeffrey A.

Electricity: electrical systems and devices

Safety and protection of systems and devices

High voltage dissipation

361 56, 361111, 361126, H02H 104

Patent

active

056233884

ABSTRACT:
A miniature solid state overvoltage protection circuit for use on telephone lines using a solid state circuit arrangement connected between the tip terminal and the ground terminal and another solid state circuit between the ring terminal and the ground terminal. The first current path includes a bi-directional solid state thyristor having two terminals. One terminal of the thyristor is connected to the tip terminal and the other terminal is connected in series with a parallel pair of oppositely polarized semiconductor diodes connected to the ground terminal. A second current path is disposed between the ring terminal and the ground terminal and is identical to the first current path.

REFERENCES:
patent: 4156838 (1979-05-01), Montague
patent: 4941063 (1990-07-01), McCartney et al.

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