Non-isolated charger with bi-polar inputs

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7834587
APP PUB NO 20100270977A1
SERIAL NO

12797987

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

Systems and methods are provided for an uninterruptable power supply having a positive DC bus, a neutral DC bus, and a negative DC bus. The uninterruptible power supply includes a battery charger circuit having an inductor, a first charger output, and a second charger output. A first switch connected to a first end of the inductor is configured to couple the positive DC bus with the first charger output. A second switch connected to a second end of the inductor is configured to couple the negative DC bus with the inductor. The neutral DC bus can be coupled to the second charger output. The battery charger circuit can be configured to draw power from at to least one of the positive DC bus and the negative DC bus to charge a battery coupled to the first charger output and the second charger output.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddressTotal Patents
AMERICAN POWER CONVERSION CORPORATIONWEST KINGSTON, RI218

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Samstad, Jeffrey B Brookline, US 8 158

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (5)
4820966 Battery monitoring system 201 1988
5047961 Automatic battery monitoring system 100 1990
2001/0009,361 Method for monitoring operating parameters of a rechargeable power supply 21 2001
2006/0012,341 Battery management system and method 16 2005
2008/0157,602 BATTERY CONNECT/DISCONNECT FOR AN UNINTERRUPTIBLE POWER SUPPLY 9 2007
 
AMERICAN POWER CONVERSION CORPORATION (12)
2005/0029,984 Battery exchange apparatus and method for uninterruptible power supply 15 2003
2005/0036,248 Uninterruptible power supply 68 2003
2005/0162,129 Method and apparatus for monitoring energy storage devices 52 2004
7432615 Uninterruptable power supply system and method 24 2004
7456518 Method and apparatus for providing uninterruptible power 23 2004
2007/0064,363 Apparatus for and method of UPS operation 33 2005
7456524 Apparatus for and methods of polyphase power conversion 15 2006
7301249 Battery connect/disconnect for an uninterruptible power supply 15 2006
2008/0061,628 Method and apparatus for providing uninterruptible power 25 2006
2008/0042,491 UNINTERRUPTIBLE POWER SUPPLY 21 2007
2009/0033,283 ADJUSTABLE BATTERY CHARGER FOR UPS 4 2007
2009/0231,892 UNINTERRUPTIBLE POWER SUPPLY 12 2009
 
POWERWARE CORPORATION (1)
5457377 Method of monitoring the internal impedance of an accumulator battery in an uninterruptible power supply, and an uninterruptible power supply 199 1993
 
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (1)
5289046 Power converter with controller for switching between primary and battery power sources 57 1992
 
LUCENT TECHNOLOGIES INC. (1)
5969436 Connect/disconnect circuit for a reserve battery and method of operation thereof 27 1998
 
SIEMENS AKTIENGESELLSCHAFT (1)
5218288 Method and apparatus for monitoring the operational state and stand-by of a battery 32 1991
 
Power-Tech Systems Corporation (2)
4843299 Universal battery charging system and a method 73 1987
5049804 Universal battery charging system and a method 91 1988
 
EATON POWER QUALITY CORPORATION (3)
6069412 Power factor corrected UPS with improved connection of battery to neutral 50 1993
6400586 Power factor corrected UPS with improved connection of battery to neutral 14 2001
6661678 Power factor corrected UPS with improved connection of battery to neutral and methods of operation thereof 33 2002
 
BAE SYSTEMS PLC (1)
4949046 Battery state of charge indicator 157 1988
 
Kabushiki Kaisha Shinsangyokaihatsu (1)
4947123 Battery state monitoring apparatus 85 1988
 
Hughes Aircraft Company (1)
5498950 Battery monitoring, charging and balancing apparatus 116 1994
 
GENERAL SIGNAL POWER SYSTEMS, INC. (3)
5315533 Back-up uninterruptible power system 148 1991
5302858 Method and apparatus for providing battery charging in a backup power system 62 1991
5619076 Method and apparatus for connection and disconnection of batteries to uninterruptible power systems and the like 34 1994
 
DELL PRODUCTS L.P. (1)
6928568 Battery charger current limiting based on maximum current capacity of AC adapter as determined by adapter identification subsystem 18 2002
 
SPAN, INC. (2)
4746854 Battery charging system with microprocessor control of voltage and current monitoring and control operations 66 1986
4918368 System for charging batteries and measuring capacities and efficiencies thereof 56 1988
 
ANTON/BAUER, INC. (1)
4965738 Intelligent battery system 193 1988
 
AT&T Bell Laboratories (1)
5266880 Battery monitoring circuit 158 1992
 
SCHNEIDER ELECTRIC IT CORPORATION (6)
6274950 Battery communication system 78 1994
6803678 Battery communication system 45 2001
6983212 Battery management system and method 87 2002
7446433 Methods and apparatus for providing uninterruptible power 22 2004
7199489 Battery communication system 15 2005
2009/0251,002 APPARATUS, SYSTEM AND METHOD FOR A UPS 15 2008
 
TEXAS INSTRUMENTS INCORPORATED (1)
6268711 Battery manager 84 2000
 
C&D CHARTER HOLDINGS, INC. (1)
5281955 Battery charge monitoring apparatus and method 41 1991
 
KABUSHIKI KAISHA TOSHIBA (1)
5148043 Uninterruptible power supply diagnosing remaining battery capacity during normal external power source operation 80 1990
 
DELTA ELECTRONICS, INC. (1)
2007/0262,650 UNINTERRUPTIBLE POWER SUPPLY WITH LOW POWER LOSS 7 2007
 
LUCAS INDUSTRIES LIMITED (1)
4394741 Battery monitoring system 53 1980
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

  • No Forward Cites to Display

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 May 16, 2018
11.5 Year Payment $7400.00 $3700.00 $1850.00 May 16, 2022
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00