Protection circuit

Details Protection circuit Protection circuit

1981-12-30

1983-10-04

Eisenzopf, Reinhard J.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific voltage responsive fault sensor

361 93, 361 56, 361 57, 361111, 361119, H02H 904

Patent

active

044082487

ABSTRACT:
A protection circuit for communication equipment connected to a two conductor communication line includes a bridge rectifier having alternating current terminals connected to the conductors and to ground. The direct current terminals of the rectifier are connected to a device responsive to a range of predetermined voltage and current conditions in the conductors for reflecting foreign electrical energy.

REFERENCES:
patent: 3341763 (1967-09-01), Noddin
patent: 3475653 (1969-08-01), Odenberg et al.
patent: 3626249 (1971-12-01), Snedeker
patent: 3790856 (1974-02-01), Hutchinson
patent: 3925624 (1975-12-01), Earle et al.
patent: 4135223 (1979-01-01), Holmes
patent: 4156263 (1979-05-01), Comerford et al.
Article by Horst Pelka Entitled "Elektronische Ueberstromsicherungen", Elektre-Technische Zeitschrift-B, vol. 24, (1972), No. 2, pp. 34 and 35.

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