Battery backup system

Details Battery backup system Battery backup system

1978-01-17

1979-03-06

Wintercorn, Richard A.

Electrical transmission or interconnection systems

Plural supply circuits or sources

Substitute or emergency source

307 71, 307130, 320 16, 361 92, 364900, H02J 700, H02J 904, H02H 324

Patent

active

041432835

ABSTRACT:
A battery backup system provides DC power to a data processing system in the event of an AC power failure. A preferred embodiment supplies DC power from a plurality of series-connected batteries at a voltage level sufficient to operate a data processor. After a time delay, the batteries are connected in parallel to provide DC power at a lower voltage level sufficient to maintain information stored in a memory.

REFERENCES:
patent: 3718848 (1973-02-01), Hines
patent: 3757131 (1973-09-01), Krutz
patent: 3927800 (1975-12-01), Zinsmeyer
patent: 4034193 (1977-07-01), Jackson

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