The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 29, 1999
Filed:
Sep. 25, 1996
Michael R Rusnack, Boise, ID (US);
Hewlett-Packard Company, Palo Alto, CA (US);
Abstract
A live AC mains power selector for a disk storage system having electrical redundancy comprises first and second AC mains, first, second and third power supplies, and switching means. The first and second power supplies are connected, respectively, to the first and second AC mains. The switching means is powered by the first AC main and connects the first AC main to the third (redundant) power supply in the event the first AC main is energized. The switching means automatically connects the second AC main to the third power supply in the event the first AC main is de-energized. In alternate embodiments, all three power supplies remain operational in the event of a failure of the first AC main. With the addition of a second switching means, all three power supplies remain operational in the event of a failure of either AC main. In yet further alternate embodiments, a live AC mains selector is included in a system having equal inputs and outputs.