公开(公告)号：US6115225A

公开(公告)日：2000-09-05

申请号：US226309

申请日：1999-01-07

申请人： Mitsuru Kominami

发明人： Mitsuru Kominami

IPC分类号： G06F1/28 ,  G06F1/30 ,  G06F3/06 ,  G11B19/00 ,  H04Q1/28 ,  H04Q3/545 ,  H02H3/00

CPC分类号： G06F1/30

摘要： There is provided a power supply system which is capable of eliminating inconvenience affecting a storage device in the event of a power failure. Monitoring control means monitors supply voltage provided by a DC power supply connected to a power-supplied device and outputs a warning signal to transition means when the absolute value of the supply voltage becomes equal to or smaller than a predetermined voltage value. The transition means causes transition of the operative state of a storage device included in the power-supplied device to an operation terminated state. More specifically, if the storage device is a hard disk drive and the hard disk drive is performing write operation, the hard disk drive is caused to undergo operative state transition to a stable state in which the write operation has been terminated. Further, if the storage device is comprised of a working storage unit and a backup one, the operative state transition of the storage device is carried out such that the two storage units have identical data stored therein, followed by inhibiting the operation of the storage device.

摘要翻译： 提供了一种电源系统，其能够消除在电源故障的情况下对存储设备的不利影响。 监视控制装置监视与供电装置连接的直流电源所提供的电源电压，并且当电源电压的绝对值变得等于或小于预定电压值时，向转换装置输出警告信号。 转换装置使得包括在供电装置中的存储装置的操作状态转变为操作终止状态。 更具体地说，如果存储设备是硬盘驱动器并且硬盘驱动器正在执行写入操作，则使硬盘驱动器进行到已经终止写入操作的稳定状态的操作状态转换。 此外，如果存储装置由工作存储单元和备用装置组成，则存储装置的操作状态转换被执行，使得两个存储单元具有存储在其中的相同数据，随后禁止存储装置的操作 。