POWERED DEVICE INTERFACE CONTROLLER
A powered device (PD) interface controller is provided that includes a switch and control circuitry. The switch controls current to a PD from a power sourcing equipment (PSE). The PD accepts power from a network cable over which data is carried, and the PSE provides the power to the network cable. T...
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| creator | Peker, Arkadiy Darshan, Yair Jacubovski, Miguel |
| description | A powered device (PD) interface controller is provided that includes a switch and control circuitry. The switch controls current to a PD from a power sourcing equipment (PSE). The PD accepts power from a network cable over which data is carried, and the PSE provides the power to the network cable. The PD also accepts power from an auxiliary power source. The control circuitry detects a change-over from the auxiliary power source to the PSE as a source of power. The control circuitry turns on the switch to control the current to a short circuit current limit level, greater than a startup inrush current limit of the PD, for a period of time less than a short circuit time limit, to charge a bulk capacitor of the PD. The control circuitry turns on the switch fully to allow the current to flow towards the PD. |
| format | Patent |
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The switch controls current to a PD from a power sourcing equipment (PSE). The PD accepts power from a network cable over which data is carried, and the PSE provides the power to the network cable. The PD also accepts power from an auxiliary power source. The control circuitry detects a change-over from the auxiliary power source to the PSE as a source of power. The control circuitry turns on the switch to control the current to a short circuit current limit level, greater than a startup inrush current limit of the PD, for a period of time less than a short circuit time limit, to charge a bulk capacitor of the PD. 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The switch controls current to a PD from a power sourcing equipment (PSE). The PD accepts power from a network cable over which data is carried, and the PSE provides the power to the network cable. The PD also accepts power from an auxiliary power source. The control circuitry detects a change-over from the auxiliary power source to the PSE as a source of power. The control circuitry turns on the switch to control the current to a short circuit current limit level, greater than a startup inrush current limit of the PD, for a period of time less than a short circuit time limit, to charge a bulk capacitor of the PD. The control circuitry turns on the switch fully to allow the current to flow towards the PD.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION SYSTEMS FOR STORING ELECTRIC ENERGY |
| title | POWERED DEVICE INTERFACE CONTROLLER |
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