Marc SousaRichardson, TX
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Richardson, TX
Newark, CA
Martinez, CA
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Us Patents
Priority Powerdown System And Method For Power Distribution Systems
US Patent:
7340325, Mar 4, 2008
Filed:
Aug 3, 2005
Appl. No.:
11/196790
Inventors:
Marc D. Sousa - McKinney TX, US
Michael Sean McCormack - Gloucester MA, US
Michael Sean McCormack - Gloucester MA, US
Assignee:
Texas Instruments Incorporated - Dallas TX
International Classification:
H02J 13/00
US Classification:
700295, 361 90, 709223, 713320
Abstract:
A power controller for power sourcing equipment in a distributed power network provides power down policies and priority in the event of a power supply failure. The power down priority and policy permits implementation of a rapid decrease in the power demand of the distributed power network to avoid overload of a backup power supply. The priority may be derived based on the relative position of port information in a linked list. Devices associated with a high priority can remain powered in response to a main power supply failure, while lower priority devices can be rapidly powered down to reduce the overall load demand on the backup power supply. The ability to configure ports on the basis of priority and available policies provides a flexible and simple implementation of a response in the event of a main power supply failure.
Priority Powerdown System And Method For Power Distribution Systems
US Patent:
2007002, Feb 1, 2007
Filed:
Jul 27, 2005
Appl. No.:
11/191166
Inventors:
Marc Sousa - McKinney TX, US
Wilburn Miller - Wilton NH, US
Wilburn Miller - Wilton NH, US
International Classification:
H02H 3/20
US Classification:
361090000
Abstract:
A power controller for power sourceing equipment in a distributed power network includes a memory element that indicates a device power down policy to be applied in the event of a main power supply failure and switchover to a backup power supply. A variety of policies are available, at least one of which permits flexible administration of the settings for individual devices by grouping them together. Devices assigned to given groups may be determined to be critical or non-critical and be powered down or remain powered during the power supply switchover event. The power down policy is triggered through a signal that can be hardwired to the controller to indicate when the power supply switchover event occurs. The various policies that can be applied contribute to reducing the switchover latency when non-critical loads are shut down, to reduce the demand on interim power supply devices, such as capacitors.
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