Remote supply for telecommunications repeater amplifier - has parallel connected constant current DC:DC converters, with output of each converter supplying amplifier

摘要

The remote supply, for parallel telecommunications repeater amplifiers, transmits dc currents to dc/dc converters connected in parallel between the two wires. The output of each converter supplies a repeater amplifier. The converters draw a constant current. Each converter consists of an input dc-to-pulse inverter coupled via a tapped transformer to a rectifier and smoothing circuit. A constant current regulator may be connected before each converter and/or a constant voltage regulator after it. The converter's transfer ratio is set in-situ.