Emergency power supply for small computer systems

Author

Ueno, Fumio ; Inoue, Takahiro ; Oota, Ichirou ; Harada, Ikko

Author_Institution

Fac. of Eng., Kumamoto Univ., Japan

fYear

1991

fDate

11-14 Jun 1991

Firstpage

1065

Abstract

A small size emergency power supply was investigated. This was realized by adopting a quick detector of momentary power failure and a compact DC-DC converter. The power failure detector has a novel type of T-V (time-voltage) conversion using an SC (switched capacitor) integrator and can detect power failures at its earliest stage. The DC-DC converter was constructed by an SC transformer in which the voltage of each stage increases according to the form of the Fibonacci sequence. The proposed power supply is supplied with power from chargeable batteries for several minutes, while the computer system saves important data to an auxiliary memory such as a disk and can complete its emergency quit operation. The circuit configurations, operations and experimental results are presented

Keywords

emergency power supply; power convertors; power supplies to apparatus; DC-DC converter; Fibonacci sequence; SC integrator; SC transformer; auxiliary memory; chargeable batteries; circuit configurations; emergency power supply; emergency quit operation; momentary power failure; power failure detector; small computer systems; time-voltage conversion; Capacitors; Circuits; DC-DC power converters; Detectors; Emergency power supplies; Power engineering computing; Power supplies; Power system protection; Uninterruptible power systems; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1991., IEEE International Sympoisum on

Print_ISBN

0-7803-0050-5

Type

conf

DOI

10.1109/ISCAS.1991.176549

Filename

176549