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AssigneeHitachi Computer Peripherals Co., Ltd.
InventorsFumikazu Takahashi, Akihiko Kanouda, Masahiro Hamaogi, Yoshihide Takahashi
Estimating the term…
In the case where there coexist general loads requiring backup only for a short duration and a specific load requiring backup for a longer duration, uninterruptible power with higher reliability is supplied to the specific load with the adoption of a simple configuration. A DC backup power supply system comprises an AC/DC converter for normally supplying DC power to loads in while (the general loads and the specific load, included), and a control circuit for supplying DC output backing up the loads in whole for relatively short time only from a battery at the time of a power outage, while supplying DC output backing up the specific load, such as a cache memory and so forth, for relatively long time. Thus, it is possible to implement an uninterruptible power supply system small in size and low in cost, provided with a function for proper use depending on a prevailing situation.
A DC backup power supply system having a plurality of loads to which AC from a commercial power source is supplied, and DC power storage means for supplying DC power to the plurality of the loads at the time of a power outage of the commercial power source, said DC backup power supply system comprising:
A DC backup power supply system having an AC/DC converter for receiving AC from a commercial power source, and supplying DC power to a plurality of loads, and DC power storage means for supplying DC power to the plurality of the loads at the time of a power outage of the commercial power source, said DC backup power supply system comprising:
A disk array having an AC/DC converter for receiving AC from a commercial power source to be converted into DC, a CPU to which DC output from the AC/DC converter is supplied, a plurality of loads including a cache memory, and a plurality of hard disk drives, and DC power storage means for supplying DC power to the plurality of the loads at the time of a power outage of the commercial power source, said disk array comprising:
A DC backup power supply system having DC power storage means comprising:
Dependencies are inferred from the claim text.