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Power system configuration and recovery from a power fault condition in a computer system having multiple power supplies

  • US 5,557,738 A
  • Filed: 05/09/1994
  • Issued: 09/17/1996
  • Est. Priority Date: 05/09/1994
  • Status: Expired due to Term
First Claim
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1. For use in an electronic device having a plurality of available power supplies, a method of selecting one of the plurality of available power supplies for operating the electronic device comprising the steps of:

  • bridging all available power supplies simultaneously through a combined power path to provide power to the load of the electronic device;

    iterating through a preference hierarchy of the plurality of available power supplies and selecting the first power supply in the hierarchy that is suitable for operating the electronic device; and

    switching the power system of the electronic device from the bridged power supply circuit to the first power supply in the hierarchy that is suitable for supplying power to the load of the electronic device.

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