Constant Voltage Resistive Feeder for Telephone Line Interface Circuits
Original Publication Date: 1983-Apr-01
Included in the Prior Art Database: 2005-Feb-07
This article describes an improvement to the feeder used to supply a telephone line with a DC current. The improved feeder behaves as a constant voltage source as long as the output current is below a current reference, and as a linear resistive feeder when the output current is above the current reference.