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Class Information
Number: 320/119
Name: Electricity: battery or capacitor charging or discharging > Serially connected batteries or cells > With individual charging of plural batteries or cells
Description: Subject matter wherein each one of plural serially-connected batteries or cells is separately charged by use of multiple charging circuits.

Patents under this class:
1 2 3 4 5 6 7

Patent Number Title Of Patent Date Issued
6866107 Method and device for battery load sharing Mar. 15, 2005
6853164 Bandgap reference circuit Feb. 8, 2005
6841971 Charge balancing systems and methods Jan. 11, 2005
6838856 Apparatus and method for high-frequency operation in a battery charger Jan. 4, 2005
6825638 Battery charging system and charging method thereof Nov. 30, 2004
6811903 Electrochemical cell recharging system Nov. 2, 2004
6812671 Method and apparatus for controlling current draw while charging a battery array Nov. 2, 2004
6801014 Battery equalizer using total string current Oct. 5, 2004
6794851 Charging circuit and battery charger Sep. 21, 2004
6784638 Series charger with separate detection of batteries Aug. 31, 2004
6777908 Method and apparatus for correcting and maintaining voltage balance in multiple cell battery configurations Aug. 17, 2004
6700350 Method and apparatus for controlling charge balance among cells while charging a battery array Mar. 2, 2004
6642693 Voltage equalizing apparatus for battery devices Nov. 4, 2003
6599655 Procedure for performing battery reconditioning on a space vehicle designed with one battery Jul. 29, 2003
6586909 Parallel battery charging device Jul. 1, 2003
6583602 Vehicular power supply apparatus and method of controlling the same Jun. 24, 2003
6563291 Set battery charging condition detecting apparatus May. 13, 2003
6541940 Load follower using batteries exhibiting memory Apr. 1, 2003
6538414 Electric energy storage device with cell energy control, and method of controlling cell energy Mar. 25, 2003
6511764 Voltaic pile with charge equalizing system Jan. 28, 2003
6476583 Automatic battery charging system for a battery back-up DC power supply Nov. 5, 2002
6462511 Pseudo-parallel charging systems and methods Oct. 8, 2002
6445160 Method for controlling battery charging of electric vehicle Sep. 3, 2002
6445159 Power sharing method and circuit for simultaneously charging multiple loads Sep. 3, 2002
6441583 Method, arrangement and interface system to enable electrical batteries of different kinds to be charged by means of the same charger device Aug. 27, 2002
6396244 Electric element control apparatus, battery system, and inverter motor system May. 28, 2002
6373224 Battery accumulating apparatus Apr. 16, 2002
6362597 Power distribution in a portable device Mar. 26, 2002
6323621 Battery lead with charging and operating connection Nov. 27, 2001
6304059 Battery management system, method of operation therefor and battery plant employing the same Oct. 16, 2001
6271645 Method for balancing battery pack energy levels Aug. 7, 2001
6258479 Method for determining amount of water to be added to a NiCd cell Jul. 10, 2001
6249125 Test system for detecting defective batteries Jun. 19, 2001
6242888 Optimization of mobile station battery charging with a two slot charger by sharing a charging period Jun. 5, 2001
6239579 Device for managing battery packs by selectively monitoring and assessing the operative capacity of the battery modules in the pack May. 29, 2001
6239578 System and method for preservation of battery power during reconditioning May. 29, 2001
6222341 Dual battery charge maintenance system and method Apr. 24, 2001
6222344 Magnetically coupled autonomous battery equalization circuit Apr. 24, 2001
6215278 Capacitor module, bank of such modules, and storehouse housing such banks Apr. 10, 2001
6194867 Adaptive multiple battery charging apparatus Feb. 27, 2001
6184656 Radio frequency energy management system Feb. 6, 2001
6181106 Sequential high-rate charging of battery cells Jan. 30, 2001
6172478 Power distribution in a portable device Jan. 9, 2001
6172480 Compact fast battery charger Jan. 9, 2001
6165646 Solid state rechargeable lithium battery, stacking battery, and charging method of same Dec. 26, 2000
6160375 Charge controlling device and method for multi-cell battery, and electric vehicle provided with change controlling Dec. 12, 2000
6160378 Battery charger with detachable mechanical adapters and fold-out connectors Dec. 12, 2000
6160379 Mode selection circuit for a battery, a method of selecting modes for the battery and a battery back-up power supply employing the circuit and method Dec. 12, 2000
6147499 Instrument for measuring voltages of cells Nov. 14, 2000
6137260 Multifunction connector for hand-held terminal docks Oct. 24, 2000

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