DC to DC converter for line powered modem

Details DC to DC converter for line powered modem DC to DC converter for line powered modem

1980-11-03

1983-02-08

Pellinen, A. D.

Pulse or digital communications

Repeaters

Testing

375 8, H04M 1900

Patent

active

043731171

ABSTRACT:
A DC to DC converter circuit for use in a telephone line powered modem and operative to convert a voltage derived from the telephone line to operating voltages required for modem operation.

REFERENCES:
patent: 3539727 (1970-11-01), Pasternack
patent: 4171467 (1979-10-01), Evenchik
The Bell System Data Set Catalog, 1972, pp. 2-56.
Bell Systems Data Set 113A Product Literature-Description and Operation, pp. 1-6, Installation and Connection, pp. 1-7, and Test Procedure, pp. 1-4, 1972.

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