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US 2022/0069864 A1Published application
Ethernet power sourcing equipment and power management method thereof
AssigneeRealtek Semiconductor Corp.
InventorsHe Li, Rui Wang, Qi-Cai Tang, Min Zhang, Teng-Yue Zhang
Life of this patent
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Abstract
An Ethernet power sourcing equipment (PSE) and a power management method thereof are provided. The Ethernet PSE includes a plurality of ports and a controller. Each port is coupled to a powered device (PD), to supply power to the PD through the port when the PD is in a power supply stage. When the PD enters a startup stage before the power supply stage, the controller calculates a remaining power quota based on a power quota allocated to the PD.
Claims20
An apparatus comprising:
- a plurality of ports, wherein each port is configured for coupling to a powered device (PD) for supplying power to the PD through the port when the PD is in a power supply stage;
- and
- a controller configured to calculate a remaining power quota based on a power quota allocated to the PD when the PD enters a startup stage before the power supply stage.
A power management method of an Ethernet power sourcing equipment (PSE), comprising:
- supplying power to a powered device (PD) when the PD is in a power supply stage;
- and
- calculating a remaining power quota based on a power quota allocated to the PD when the PD enters a startup stage before the power supply stage.
Dependencies are inferred from the claim text.