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FEEDBACK LOOP PROVIDING DC CHARACTERISTIC IN MALC SYSTEM

IP.com Disclosure Number: IPCOM000005690D
Original Publication Date: 1987-Oct-01
Included in the Prior Art Database: 2001-Oct-26

Publishing Venue

Motorola

Related People

Authors:
Patrick Clement

Abstract

Within the MALC system the subscriber's telephone line is current fed. However the DC characteristic for feeding the line requires more than a simple current source. This characteristic should have two polarities and in each case three parts are distinguished as shown in FIG. 1: - VOLTAGE FEED: the system provides a constant line voltage VL = VF;