Power sourcing equipment, and method and apparatus for power over Ethernet

  • US 10,666,447 B2
  • Filed: 10/12/2017
  • Issued: 05/26/2020
  • Est. Priority Date: 10/13/2016
  • Status: Active Grant
First Claim
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1. A power sourcing equipment (PSE), comprising:

  • a PSE chip;

    a master control processor coupled to the PSE chip, wherein the master control processor is configured to;

    run BOOT of a basic input/output system (BIOS) during the master control processor starting upon power-on;

    execute a main program during the master control processor starting upon power-on;

    determine whether the PSE chip has supplied power to a powered device (PD) after completing the master control processor starting upon power-on;

    obtain state information of the PSE chip when the PSE chip has supplied power to the PD;

    use the state information as a start state for subsequently controlling the PSE chip; and

    initialize the PSE chip when the PSE chip has not supplied power to the PD;

    a power supplying port coupled to the PSE chip; and

    a preprocessor coupled to the master control processor and the PSE chip, wherein the preprocessor is configured to perform the following during the master control processor starting upon power-on;

    determine whether the master control processor starts upon power-on;

    set the PSE chip to a manual mode;

    control the PSE chip to detect whether the power supplying port is connected to a valid PD; and

    control, according to a preset rule, the PSE chip to power on the valid PD when the power supplying port is connected to the valid PD.

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