System and method for conserving power within a backup battery d

Details System and method for conserving power within a backup battery d System and method for conserving power within a backup battery d

1996-09-24

1998-07-21

Sheikh, Ayaz R.

Static information storage and retrieval

Magnetic bubbles

Guide structure

39575001, 39575003, 39575006, 365226, 365227, 365228, 365229, G06F 132

Patent

active

057846294

ABSTRACT:
A system and method for conserving power within a backup battery device comprises a main battery for generating a main operating voltage and a secondary operating voltage, a switching device for connecting the main operating voltage to a secondary power bus which powers a memory device, and a power manager for sensing whenever the main battery drops to a first threshold voltage, whereupon the power manager connects the secondary operating voltage to the secondary power bus if the memory device contains data, and disconnects the main operating voltage from the secondary power bus. The backup battery generates the secondary operating voltage whenever the power manager senses that the main battery has reached a second threshold voltage.

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Martyn Williams, Review-NEC PC-DC401 Digital Still Camera, AppleLink Newbytes, Mar. 15, 1996, pp. 1-3.

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