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METHOD AND SYSTEM FOR DISCOVERING A POWER SOURCE ON A PERIPHERAL BUS

  • US 20090278407A1
  • Filed: 07/21/2009
  • Published: 11/12/2009
  • Est. Priority Date: 07/18/2004
  • Status: Active Grant
First Claim
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1. A power source comprising:

  • a power line;

    a ground line;

    available power circuitry operatively coupled to the power line and the ground line, wherein the available power circuitry is configured to provide a first voltage on a first output and a second voltage on a second output, the first and second voltages indicating a level of power available from the power source; and

    a connector including a power pin coupled to the power line, a ground pin coupled to the ground line, a first digital data pin coupled to the first output of the available power circuitry, and a second digital data pin coupled to the second output of the available power circuitry,wherein when the connector is coupled to a peripheral bus connector of an electronic device;

    the power line is operable to provide power to a peripheral bus connector of an electronic device via the power pin, andthe first and second digital data pins are operable to provide the first and second voltages to respective digital data input pins of the peripheral bus connector of the electronic device.

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