US Patent 7612467 Power device and power device power supply method

Patent 7612467 was granted and assigned to Hitachi on November, 2009 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Hitachi

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7612467

Date of Patent

November 3, 2009

Patent Application Number

11635569

Date Filed

December 8, 2006

Patent Primary Examiner

‌

Robert L Deberadinis

Patent abstract

A power device of the present invention makes a plurality of DC/DC converters redundant, and supplies power individually to a plurality of disk drives. Each first DC/DC converter is respectively made correspondent to a subgroup. One first DC/DC converter is connected to the disk drives respectively inside one subgroup, and the other first DC/DC converter is connected to the disk drives inside the other subgroup. A second DC/DC converter is made correspondent to all of the subgroups. Second DC/DC converters respectively supply direct-current power to any one disk drive of the disk drives in the subgroups.