Power supply system

Details Power supply system Power supply system

1982-04-09

1984-01-10

Goldberg, Elliot A.

Electrical transmission or interconnection systems

Switching systems

With operation facilitating feature

179 70, 179 63R, H01H 160

Patent

active

044255128

ABSTRACT:
A power supply system for supplying a d.c. current from a center equipment to a terminal device through a two-wire line, is capable of properly supplying the current for communicating purposes irrespective of the connection condition of the two-wire line and accurately stopping the supply of current to the terminal device in the non-communicating condition.

REFERENCES:
patent: 3531598 (1970-09-01), McNair, Jr.
patent: 4254305 (1981-03-01), Treiber
patent: 4277647 (1981-07-01), Brolin et al.

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