US Patent No: 7,834,587
Number of patents in Portfolio can not be more than 2000
Non-isolated charger with bi-polar inputs
Stats
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Nov 16, 2010
Issued date -
Jun 10, 2010
filing date -
12/797,987
serial no -
In Force
status
Importance
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Abstract
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.
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First Claim
Related Publications
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 6,274,950 Battery communication system | 53 | 1994 | |
| 6,803,678 Battery communication system | 38 | 2001 | |
| 6,983,212 Battery management system and method | 44 | 2002 | |
| 2005/0029,984 Battery exchange apparatus and method for uninterruptible power supply | 7 | 2003 | |
| 2005/0036,248 Uninterruptible power supply | 41 | 2003 | |
| 7,446,433 Methods and apparatus for providing uninterruptible power | 11 | 2004 | |
| 2005/0162,129 Method and apparatus for monitoring energy storage devices | 34 | 2004 | |
| 7,432,615 Uninterruptable power supply system and method | 12 | 2004 | |
| 7,456,518 Method and apparatus for providing uninterruptible power | 10 | 2004 | |
| 7,199,489 Battery communication system | 11 | 2005 | |
| 2007/0064,363 Apparatus for and method of UPS operation | 15 | 2005 | |
| 7,456,524 Apparatus for and methods of polyphase power conversion | 9 | 2006 | |
| 7,301,249 Battery connect/disconnect for an uninterruptible power supply | 8 | 2006 | |
| 2008/0061,628 Method and apparatus for providing uninterruptible power | 10 | 2006 | |
| 2008/0042,491 UNINTERRUPTIBLE POWER SUPPLY | 8 | 2007 | |
| 2009/0033,283 ADJUSTABLE BATTERY CHARGER FOR UPS | 3 | 2007 | |
| 2009/0231,892 UNINTERRUPTIBLE POWER SUPPLY | 4 | 2009 | |
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| 6,069,412 Power factor corrected UPS with improved connection of battery to neutral | 34 | 1993 | |
| 6,400,586 Power factor corrected UPS with improved connection of battery to neutral | 12 | 2001 | |
| 6,661,678 Power factor corrected UPS with improved connection of battery to neutral and methods of operation thereof | 18 | 2002 | |
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| 5,315,533 Back-up uninterruptible power system | 119 | 1991 | |
| 5,302,858 Method and apparatus for providing battery charging in a backup power system | 47 | 1991 | |
| 5,619,076 Method and apparatus for connection and disconnection of batteries to uninterruptible power systems and the like | 29 | 1994 | |
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| 4,843,299 Universal battery charging system and a method | 71 | 1987 | |
| 5,049,804 Universal battery charging system and a method | 80 | 1988 | |
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| 4,746,854 Battery charging system with microprocessor control of voltage and current monitoring and control operations | 64 | 1986 | |
| 4,918,368 System for charging batteries and measuring capacities and efficiencies thereof | 53 | 1988 | |
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| 4,965,738 Intelligent battery system | 148 | 1988 | |
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| 5,266,880 Battery monitoring circuit | 133 | 1992 | |
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| 4,949,046 Battery state of charge indicator | 129 | 1988 | |
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| 5,281,955 Battery charge monitoring apparatus and method | 32 | 1991 | |
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| 6,928,568 Battery charger current limiting based on maximum current capacity of AC adapter as determined by adapter identification subsystem | 13 | 2002 | |
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| 2007/0262,650 UNINTERRUPTIBLE POWER SUPPLY WITH LOW POWER LOSS | 4 | 2007 | |
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| 5,289,046 Power converter with controller for switching between primary and battery power sources | 46 | 1992 | |
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| 5,498,950 Battery monitoring, charging and balancing apparatus | 88 | 1994 | |
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| 4,947,123 Battery state monitoring apparatus | 76 | 1988 | |
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| 5,148,043 Uninterruptible power supply diagnosing remaining battery capacity during normal external power source operation | 54 | 1990 | |
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| 4,394,741 Battery monitoring system | 41 | 1980 | |
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| 5,969,436 Connect/disconnect circuit for a reserve battery and method of operation thereof | 21 | 1998 | |
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| 5,457,377 Method of monitoring the internal impedance of an accumulator battery in an uninterruptible power supply, and an uninterruptible power supply | 165 | 1993 | |
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| 2009/0251,002 APPARATUS, SYSTEM AND METHOD FOR A UPS | 4 | 2008 | |
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| 5,218,288 Method and apparatus for monitoring the operational state and stand-by of a battery | 30 | 1991 | |
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| 6,268,711 Battery manager | 50 | 2000 | |
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| 4,217,645 Battery monitoring system | 155 | 1979 | |
| 4,820,966 Battery monitoring system | 172 | 1988 | |
| 5,047,961 Automatic battery monitoring system | 95 | 1990 | |
| 2001/0009,361 Method for monitoring operating parameters of a rechargeable power supply | 18 | 2001 | |
| 2006/0012,341 Battery management system and method | 7 | 2005 | |
| 2008/0157,602 BATTERY CONNECT/DISCONNECT FOR AN UNINTERRUPTIBLE POWER SUPPLY | 4 | 2007 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | May 16, 2014 |
| 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 - 3.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| 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 |