Method and system for cell equalization with switched...

Details Method and system for cell equalization with switched... Method and system for cell equalization with switched...

2009-07-06

2010-10-26

Tso, Edward (Department: 2858)

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With individual charging of plural batteries or cells

C320S122000

Reexamination Certificate

active

07821230

ABSTRACT:
A system and method for charging a rechargeable, or secondary, battery including a series string of cells, includes a topology of charging sources that selectively provides charging current to cells that need to be charged, but avoids overcharging cells that are already charged above a predetermined voltage threshold. Based on individual cell voltage measurements, the charging current is controlled in a manner to direct charging current to the battery cell(s) needing charge until these cells are fully charged, and by-passes battery cells that are fully charged or become fully charged.

REFERENCES:
patent: 4238721 (1980-12-01), Deluca et al.
patent: 4467266 (1984-08-01), Ritchie
patent: 5498950 (1996-03-01), Ouwerkerk
patent: 5504415 (1996-04-01), Podrazhansky et al.
patent: 5592067 (1997-01-01), Peter et al.
patent: 5631534 (1997-05-01), Lewis
patent: 5656915 (1997-08-01), Eaves
patent: 5659208 (1997-08-01), Kimble et al.
patent: 5710504 (1998-01-01), Pascual et al.
patent: 5811959 (1998-09-01), Kejha
patent: 5821733 (1998-10-01), Turnbull
patent: 5850136 (1998-12-01), Kaneko
patent: 5867007 (1999-02-01), Kim
patent: 5920179 (1999-07-01), Pedicini
patent: 5945804 (1999-08-01), Hansson et al.
patent: 5965996 (1999-10-01), Arledge et al.
patent: 6064178 (2000-05-01), Miller
patent: 6094031 (2000-07-01), Shimane et al.
patent: 6097174 (2000-08-01), Yang et al.
patent: 6140800 (2000-10-01), Peterson
patent: 6150795 (2000-11-01), Kutkut et al.
patent: 6157167 (2000-12-01), Schwartz et al.
patent: 6181106 (2001-01-01), Finger
patent: 6222344 (2001-04-01), Peterson et al.
patent: 6268710 (2001-07-01), Koga
patent: 6316917 (2001-11-01), Ohta
patent: 6326768 (2001-12-01), Nagai et al.
patent: 6377024 (2002-04-01), Choy
patent: 6388424 (2002-05-01), Hidaka et al.
patent: 6441583 (2002-08-01), Perelle
patent: 6452363 (2002-09-01), Jabaji
patent: 6580249 (2003-06-01), Yau et al.
patent: 6580251 (2003-06-01), Takeuchi
patent: 6586917 (2003-07-01), Smith
patent: 6608470 (2003-08-01), Oglesbee et al.
patent: 6703722 (2004-03-01), Christensen
patent: 6791297 (2004-09-01), Ott et al.
patent: 6822423 (2004-11-01), Yau et al.
patent: 6841971 (2005-01-01), Spee et al.
patent: 6983212 (2006-01-01), Burns
patent: 7061207 (2006-06-01), Patel et al.
patent: 2002/0047685 (2002-04-01), Perelle
patent: 2002/0084770 (2002-07-01), Jabaji
patent: 2002/0195994 (2002-12-01), Perelle
patent: 2003/0042870 (2003-03-01), Yau et al.
patent: 2003/0113600 (2003-06-01), Wardrop et al.
patent: 2003/0139888 (2003-07-01), Burns
patent: 2003/0160593 (2003-08-01), Yau et al.
patent: 2003/0218446 (2003-11-01), Beerwerth et al.
patent: 2004/0012371 (2004-01-01), Ott et al.
patent: 2004/0135544 (2004-07-01), King et al.
patent: 2004/0145346 (2004-07-01), Hall et al.
patent: 2004/0164706 (2004-08-01), Osborne
patent: 2006/0097696 (2006-05-01), Studyvin
patent: 2006/0097697 (2006-05-01), Studyvin et al.
patent: 2006/0097700 (2006-05-01), Studyvin
patent: 2007/0063670 (2007-03-01), Taurand
patent: 08237861 (1996-09-01), None
Office Action mailed from the USPTO in U.S. Appl. No. 11/163,667, filed Jul. 25, 2008.
Office Action mailed from the USPTO in U.S. Appl. No. 11/163,667, filed Feb. 6, 2008.
Office Action mailed from the USPTO in U.S. Appl. No. 11/163,667, filed Sep. 11, 2007.
Office Action mailed from the USPTO in U.S. Appl. No. 11/163,668, filed Jun. 26, 2007.
Office Action mailed from the USPTO in U.S. Appl. No. 11/163,668, filed Feb. 21, 2008.

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