A 48 V 100 A switching power supply unit and its application

Author

Nagai, Y. ; Tomokuni, Y. ; Hirachi, K.

Author_Institution

Yuasa Battery Co. Ltd., Osaka, Japan

fYear

1988

fDate

30 Oct-2 Nov 1988

Firstpage

421

Lastpage

428

Abstract

It is shown that the 48 V, 100 A switching power supply unit possesses excellent characteristics including compactness, light weight, high efficiency, and a high power factor. It is also shown that by combining the power supply with a CPU-controlled monitor, it is possible to configure an uninterruptible power supply system for communications which has extremely high operability and reliability. This monitor has various control and display functions such as control of the number of operating units in accordance with the load current, the calculation and indication of residual battery capacity, and charging control based on residual capacity

Keywords

power supplies to apparatus; telecommunication equipment; uninterruptible power supplies; 100 A; 48 V; CPU-controlled monitor; charging control; communications; high efficiency; high power factor; load current; reliability; residual battery capacity; switching power supply unit; uninterruptible power supply system; Batteries; Circuits; Communication switching; Communication system control; Condition monitoring; Control systems; Power supplies; Power system reliability; Switching loss; Thyristors;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Energy Conference, 1988. INTELEC '88., 10th International

Conference_Location

San Diego, CA

Type

conf

DOI

10.1109/INTLEC.1988.22386

Filename

22386