SYSTEM AND METHOD FOR PROVIDING INCREASED POWER USING POWER OVER ETHERNET

    公开(公告)号:US20240333540A1

    公开(公告)日:2024-10-03

    申请号:US18605991

    申请日:2024-03-15

    申请人: Axis AB

    IPC分类号: H04L12/10 G06F1/26

    CPC分类号: H04L12/10 G06F1/266

    摘要: A method for controlling the output power of power sourcing equipment powering a device through an ethernet cable, comprising: performing a power negotiation between the power sourcing equipment and the powered device, the negotiation comprising establishing a relation between an output voltage of the power sourcing equipment and a loop current from the powered device to the power sourcing equipment by measuring the loop current in a current-sensing device; obtaining indications of whether the powered device needs increased power and whether the power sourcing equipment is able to deliver increased power; if the powered device needs increased power and the power sourcing equipment is of a power sourcing equipment type able to deliver increased power, physically manipulating the current-sensing device such that it senses a manipulated lower loop current; and providing a manipulated higher output power from the power sourcing equipment to the powered device.