Supply circuit for a subscriber's line circuit

Details Supply circuit for a subscriber's line circuit Supply circuit for a subscriber's line circuit

1978-06-05

1980-12-09

Konick, Bernard

179 77, H04M 1900

Patent

active

042386446

ABSTRACT:
A supply circuit for a telephone subscriber's line circuit that includes a voltage source and a supply impedance connected in series with the line to the voltage source for limiting the line current upon short circuit of the line. The supply circuit includes an AC voltage generator, an AC/DC converter, and a circuit for coupling the AC voltage generator to the line via the supply impedance and the AC converter.

REFERENCES:
patent: 2357418 (1944-09-01), Mattheyses
patent: 3965447 (1976-06-01), Thomas
patent: 4084217 (1978-04-01), Brandli et al.

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