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Backup power system

  • US 4,675,539 A
  • Filed: 09/17/1985
  • Issued: 06/23/1987
  • Est. Priority Date: 09/17/1985
  • Status: Expired due to Fees
First Claim
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1. Apparatus for providing backup power to a plurality of primary power supplies each of which serves one of a plurality of loads, comprisingat least one backup power supply, the number of said backup power supplies being fewer than the number of said primary power supplies,means for detecting failures of said primary power supplies and for generating power fault information indicative of the failure status of said primary power supplies, andmeans for connecting said backup power supply in parallel with one of said failed said primary power supplies to said load served by said one failed primary power supply without electrically disconnecting said one failed primary power supply from said load in response to said power fault information.

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