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Power management system including a variable voltage link

  • US 7,036,028 B2
  • Filed: 05/13/2003
  • Issued: 04/25/2006
  • Est. Priority Date: 05/13/2003
  • Status: Active Grant
First Claim
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1. A power management system, comprising:

  • a controller associated with each load of a plurality of loads to determine a lowest operational voltage based on an operating point of the associated load;

    a voltage link to supply a highest voltage of the lowest operational voltages; and

    a variable frequency power converter associated with each controller, wherein the controller controls the associated variable frequency power converter to apply power from the voltage link to the associated load in response to the operating point of the load, wherein the variable frequency power converter alternately connect and disconnect the voltage link to the load at a predetermined frequency that is a function of a voltage on the voltage link and the operating point of the load.

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