Title :
A new backup power supply with a battery deterioration test circuit
Author :
Takeno, Kazuhiko ; Yamasaki, Mikio ; Muroyama, Seiichi
Author_Institution :
NTT Interdisciplinary Res. Lab., Tokyo, Japan
Abstract :
This paper presents presents a new backup power supply with a battery deterioration test circuit. The power supply is for solid state file equipment used in telecommunications networks for multimedia services. Ni-Cd batteries are mounted on the power supply board for supplying backup power. A method is established for determining the optimum number of Ni-Cd batteries. A battery deterioration test circuit which discharges the batteries and precisely calculates power capacity is developed for the power supply. The backup characteristics and the operation of the battery deterioration test circuit are confirmed experimentally
Keywords :
DC-DC power convertors; battery testers; cadmium; multimedia communication; nickel; secondary cells; telecommunication networks; telecommunication power supplies; uninterruptible power supplies; Ni-Cd; backup power supply; battery deterioration test circuit; discharge; multimedia services; power capacity; secondary batteries; solid state file equipment; telecommunications networks; Batteries; Circuit testing; Emergency power supplies; History; Laboratories; Multimedia systems; Power supplies; Solid state circuits; Switching circuits; Temperature;
Conference_Titel :
Telecommunications Energy Conference, 1995. INTELEC '95., 17th International
Conference_Location :
The Hague
Print_ISBN :
0-7803-2750-0
DOI :
10.1109/INTLEC.1995.499016
