Redundant power system and power supply therefor

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6493243
SERIAL NO

10057713

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A redundant power system includes plural load-sharing power supplies connected to a common AC output bus. Identical circuitry is provided in each supply to control the redundant operation and is connected to each of the others via a common redundancy bus. An arbitration circuit in each supply selects a master power supply based on which supply detects the lack of a master supply first via the redundancy bus. A synchronization circuit in each slave supply synchronizes the polarity of the respective AC output with that of the master supply via the redundancy bus. A redundant bias circuit in each supply provides operating power to the redundancy circuitry in the respective supply from a common bulk voltage provided on the redundancy bus. A soft-start circuit in each supply allows all the supplies to start producing power at the AC output bus in unison. An overvoltage correction circuit in each supply detects an overvoltage on the AC output bus and shuts down only the supply which is causing the overvoltage.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
TRACEWELL ELECTRONICS, INC.CUBA, NY0

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Real, Richmond Andrew Gilbert, AZ 3 50

Cited Art Landscape

Patent Info (Count) # Cites Year
 
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Siemans Electric Limited (1)
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ITALTEL S.P.A. (1)
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UNISYS CORPORATION (1)
4538073 Modular power supply system 107 1983
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (2)
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* 2003/0018,921 Multiple host power control system and method 2 2001
 
Other [Check patent profile for assignment information] (2)
* 2001/0024,109 Power supply system 5 2001
* 2007/0222,298 High efficiency lighting system 0 2007
 
GENERAL ELECTRIC COMPANY (6)
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* 2005/0134,120 ROBUST POWER DISTRIBUTION SYSTEMS AND METHODS 3 2003
8754544 Apparatus for synchronizing uninterruptible power supplies 1 2005
* 2006/0167,569 Apparatus for synchronizing uninterruptible power supplies 29 2005
* 9548871 Systems and methods for master arbitration 0 2014
* 2014/0258,573 SYSTEMS AND METHODS FOR MASTER ARBITRATION 0 2014
 
AMERICAN POWER CONVERSION CORPORATION (13)
7612472 Method and apparatus for monitoring energy storage devices 13 2004
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7456518 Method and apparatus for providing uninterruptible power 23 2004
7274112 Method and apparatus for providing uninterruptible power 34 2004
* 2006/0044,846 Method and apparatus for providing uninterruptible power 28 2004
* 2006/0043,792 Method and apparatus for providing uninterruptible power 54 2004
8116105 Systems and methods for uninterruptible power supply control 7 2008
* 2009/0201,703 Systems and Methods for Uninterruptible Power Supply Control 12 2008
7911088 Method and apparatus for monitoring energy storage devices 4 2009
7855472 Method and apparatus for providing uninterruptible power 4 2010
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SCHNEIDER ELECTRIC INDUSTRIES SAS (1)
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CISCO TECHNOLOGY, INC. (1)
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DELL PRODUCTS L.P. (1)
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LINEAR TECHNOLOGY CORPORATION (2)
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KOITO MANUFACTURING CO., LTD. (1)
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BCD SEMICONDUCTOR MANUFACTURING LIMITED (2)
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SCHLUMBERGER TECHNOLOGY CORPORATION (1)
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MITSUBISHI DENKI KABUSHIKI KAISHA (2)
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TEXAS INSTRUMENTS INCORPORATED (2)
6995599 Cross-conduction blocked power selection comparison/control circuitry with NTC (negative temperature coefficient) trip voltage 8 2003
* 2005/0046,461 Cross-conduction blocked power selection comparison/control circuitry with NTC (negative temperature coefficient) trip voltage 7 2003
 
SCHNEIDER ELECTRIC IT CORPORATION (15)
7939968 Method and apparatus for providing uninterruptible power 12 2004
* 2006/0043,793 Method and apparatus for providing uninterruptible power 23 2004
8162417 Modular UPS 6 2008
9595742 System and method for replacing a battery in an uninterruptible power supply 0 2009
9231439 System and method for estimating an efficiency of a power device 0 2009
8732602 System and method for altering a user interface of a power device 0 2009
8639953 System and method for gathering information using a power device wherein information is associated with at least one external load 1 2009
8476787 System and method for changing power states of a power device 3 2009
8386809 System and method for configuring a power device 2 2009
* 2010/0244,571 SYSTEM AND METHOD FOR CHANGING POWER STATES OF A POWER DEVICE 0 2009
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8853887 Static bypass switch with built in transfer switch capabilities 2 2010
8803361 Apparatus and method for providing uninterruptible power 3 2011
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8854824 Modular UPS 0 2012
 
Huang, Yea Yen (1)
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DELTA ELECTRONICS, INC. (2)
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PHOENIXTEC POWER CO., LTD. (1)
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* Cited By Examiner