06735704 is referenced by 46 patents and cites 2 patents.

A power management system and method for multiple redundant power supplies. The present invention provides management and control of N+M power supplies, where N represents the minimum number of power supplies required and where M is the number of redundant power supplies (M>1), where any one of the power supplies may be capable of supplying power to all the loads of the power subsystems. In the preferred embodiment each power subsystem includes a power supply and a controller coupled to a power bus. A communication bus is provided common to each power subsystem. During reset or power-on periods, the controllers are programmed to uniquely delay the start time of each power supply, thereby protecting against an overcurrent/overvoltage condition on the power bus during reset periods. A master controller is provided to monitor normal operating conditions of the power subsystems and communication bus. The master controller is programmed to ensure that a predetermined number of power supplies are coupled to the power bus, even in the event of total or partial communication failure.

Title
Autonomic control of power subsystems in a redundant power system
Application Number
9/693384
Publication Number
6735704 (B1)
Application Date
October 20, 2000
Publication Date
May 11, 2004
Inventor
Raymond Yardy
Tucson
AZ, US
Robin Daniel Roberts
Tucson
AZ, US
Michael Philip McIntosh
Tucson
AZ, US
Leonard George Jesionowski
Tucson
AZ, US
Brian Gerard Goodman
Tucson
AZ, US
David Butka
Tucson
AZ, US
Agent
Hayes Soloway Hennessey Grossman & Hage PC
US
Agent
Allen K Bates
US
Edmund Paul Pfleger
US
Assignee
International Business Machines Corporation
NY, US
IPC
G06F 1/26
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