Title :
Remote Power Feeding of ISDN-Terminals at the Basic Access
Author :
Krautkramer, Willfried ; Schickling, Berthold
Author_Institution :
TELENORMA, D-6000 Frankfurt/Main
Abstract :
In this paper some principles of power feeding are discussed. For power supply of digital telphone sets the use of a DC/DC converter is a reasonable solution. With the implementation of the DC/DC converter into the terminal some problems must be solved like noise problems, decoupling problems and stabilized operation. A realization of a DC/DC converter is shown which has a good efficiency with loads from 10 mW to 1W. The converter can be used for the S -interface as well as for the U-interface in PABX applications.
Keywords :
DC-DC power converters; ISDN; Microelectronics; Power supplies; Regulators; Switches; Telephone sets; Telephony; Tellurium; Voltage;
Conference_Titel :
Telecommunications Energy Conference, 1985. INTELEC '85. Seventh International
Conference_Location :
Munich, Federal Republic of Germany
Print_ISBN :
3-8007-1429-9
