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US 2022/0321365 A1Published application
Power over Ethernet system having multiple power source devices and control device thereof
AssigneeIC Plus Corp.
InventorChef HSIAO
Life of this patent
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Abstract
Control device for PoE system having multiple power source devices comprises power supply state code generator in connection with the power source devices to convert a power supply state signal into a serial power supply state code; plural control circuits to generate power consumption control signals corresponding to said power supply state code by reference to a power supply to power consumption look-up-table, to control the ON/OFF of plural port switches; a signal bus connecting the power supply state code generator and the control circuits.
Claims20
A control device for power over Ethernet system having multiple power source devices, comprising:
- power supply state code generator for connecting the plurality of power source devices to receive a power supply state signal from the respective power source device and to convert the plurality of power supply state signal into a power supply state code;
- a plurality of control circuits, each connected to a plurality of port switches, each port switch controlling a power consumption state of at least one port for connection by a power consuming device;
- wherein each control circuit comprises:
- an input terminal for receiving the power supply state code;
- a first look-up-table memory to store a first power supply to power consumption look-up-table defining a corresponding relation of a plurality of power supply state code and a plurality of power consumption control combination data;
- and
- a control signal generating circuit connected to the input terminal and the first look-up-table memory and configured to:
- upon receipt of a power supply state code, pick up a power consumption control combination data corresponding to the received power supply state code, to generate a plurality of power consumption control signals, and provide the power consumption control signals to the plurality of port switches, to turn ON or OFF the port switches;
- wherein the control signal generating circuit is configured to generate a power consumption control signal upon detection of a received power supply state code different from a previously received power supply state code;
- a master controller having a second look-up-table memory for storing a second power supply to power consumption look-up-table, defining a corresponding relation of a plurality of power supply state codes and a plurality of maximum power consumption values;
- wherein the maximum power consumption value indicates an upper limit of a total power consumption allowable for all ports in connection with the plurality of control circuit, under the corresponding power supply state combination;
- and
- a signal bus connected to the power supply state code generator and the plurality of control circuits;
- wherein, the signal bus is a serial bus;
- wherein the master controller is configured to:
- in the initial stage of the system, provide a sub-table relating to a particular control circuit of the second power supply to power consumption look-up-table to each corresponding one of the plurality of control circuit;
- and wherein the plurality of control circuit is further configured to:
- after receiving the power supply to power consumption look-up-sub-table provided by the master controller, store the power supply to power consumption look-up-sub-table in the first look-up-table memory.
15 more elements
-9. (canceled)
A control device for power over Ethernet system having multiple power source device, comprising:
- power supply state code generator for connecting the plurality of power source device to receive a power supply state signal from the respective power source device and to convert the plurality of power supply state signal into a power supply state code:
- a plurality of control circuits, each connected to a plurality of port switches, each port switch controlling a power consumption state of at least one port for connection by a power consuming device;
- wherein each control circuit comprises:
- an input terminal for receiving the serial power supply state code;
- a first look-up-table memory to store a first power supply to power consumption look-up-table defining a corresponding relation of a plurality of power supply state code and a plurality of power consumption control combination data;
- and
- a control signal generating circuit connected to the input terminal and the first look-up-table memory and configured to:
- upon receipt of a serial power supply state code, pick up a power consumption control combination data corresponding to the received serial power supply state code, to generate a plurality of power consumption control signals, and provide the power consumption control signals to the plurality of port switches, to turn ON or OFF the port switches;
- wherein the control signal generating circuit is configured to generate a power consumption control signal upon detection of a received power supply state code different from a previously received power supply state code;
- a master controller having a second look-up-table memory for storing a second power supply to power consumption look-up-table, defining a corresponding relation of a plurality of power supply state codes and a plurality of maximum power consumption values;
- wherein the maximum power consumption value indicates an upper limit of a total power consumption allowable for all ports in connection with the plurality of control circuit, under the corresponding power supply state combination;
- and
- a signal bus connected to the power supply state code generator and the plurality of control circuits;
- wherein, the signal bus is a serial bus;
- wherein the master controller is configured to:
- in the initial stage of the system, provide the second power supply to power consumption look-up-table to the plurality of control circuit;
- and the plurality of control circuit is further configured to:
- after receiving the second power supply to power consumption look-up-table provided by the master controller, store the second power supply to power consumption look-up-table in the first look-up-table memory, as the first power supply to power consumption look-up-table.
15 more elements
Dependencies are inferred from the claim text.