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Class Information
Number: 320/157
Name: Electricity: battery or capacitor charging or discharging > Battery or cell charging > Time control > Detection of current or voltage amplitude
Description: Subject matter including means to measure the magnitude of charging current or the battery or cell voltage to determine the state-of-charge of the battery or cell.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7573235 |
Battery charger and power reduction system and method |
Aug. 11, 2009 |
| 7541778 |
Method and apparatus for detecting whether a lead acid battery is sulphated and for charging same |
Jun. 2, 2009 |
| 7538519 |
Information handling system with battery protected from non-permanent failures |
May. 26, 2009 |
| 7535201 |
Uninterruptible power supply system |
May. 19, 2009 |
| 7529068 |
Protective circuit for a frequency converter |
May. 5, 2009 |
| 7525290 |
Charge control device for executing a plurality of charge stages |
Apr. 28, 2009 |
| 7508170 |
Device and method for controlling input to a rechargeable battery |
Mar. 24, 2009 |
| 7498770 |
Load controlled battery charging device |
Mar. 3, 2009 |
| 7477041 |
Battery charging method |
Jan. 13, 2009 |
| 7449865 |
Battery charger for preventing both overshoot charging currents and overcharged battery voltage during mode transitions and method thereof |
Nov. 11, 2008 |
| 7446506 |
Apparatus for preventing capacitor charger from overcharging and method thereof |
Nov. 4, 2008 |
| 7394225 |
Pseudo constant current multiple cell battery charger configured with a parallel topology |
Jul. 1, 2008 |
| 7345455 |
Staggered backup battery charging system |
Mar. 18, 2008 |
| 7274172 |
Drive state detection circuit |
Sep. 25, 2007 |
| 7144646 |
Method and apparatus for multiple mode control of voltage from a fuel cell system |
Dec. 5, 2006 |
| 7126312 |
Method and apparatus for balancing multi-cell lithium battery systems |
Oct. 24, 2006 |
| 6965216 |
Method and apparatus for ameliorating electrolyte stratification during rapid charging |
Nov. 15, 2005 |
| 6404164 |
Method of battery chemistry identification through analysis of voltage behavior |
Jun. 11, 2002 |
| 6320354 |
Method and apparatus for battery charging |
Nov. 20, 2001 |
| 6316909 |
Electronic device, control method for electronic device, recharge-rate estimating method for secondary battery, and charging control method for secondary battery |
Nov. 13, 2001 |
| 6137270 |
Buzzer driving device |
Oct. 24, 2000 |
| 6020720 |
Fast charging method and apparatus for secondary cells |
Feb. 1, 2000 |
| 5994872 |
Apparatus for charging energy storage means from a multiphase power source |
Nov. 30, 1999 |
| 5955869 |
Battery pack and a method for monitoring remaining capacity of a battery pack |
Sep. 21, 1999 |
| 5864224 |
Method for charging secondary battery and charger therefor |
Jan. 26, 1999 |
| 5773955 |
Battery charger apparatus |
Jun. 30, 1998 |
| 5760570 |
Rechargeable battery apparatus |
Jun. 2, 1998 |
| 5760568 |
Method and apparatus for charging a battery and for determining a voltage of the battery during charging |
Jun. 2, 1998 |
| 5739673 |
Control device for the charging of at least one battery |
Apr. 14, 1998 |
| 5739672 |
Method and apparatus for charging batteries |
Apr. 14, 1998 |
| 5731685 |
Battery management system |
Mar. 24, 1998 |
| 5726555 |
Battery charger capable of displaying necessary charging time |
Mar. 10, 1998 |
| 5726554 |
Charging a battery having a nominal critical terminal voltage |
Mar. 10, 1998 |
| 5723971 |
Apparatus for charging a battery for a charge time determined based on the depth of discharge |
Mar. 3, 1998 |
| 5703466 |
Charging control apparatus |
Dec. 30, 1997 |
| 5691620 |
Battery charging method |
Nov. 25, 1997 |
| 5642032 |
Charging method for a battery assembly including a plurality of secondary batteries |
Jun. 24, 1997 |
| 5631539 |
Process and apparatus for charging lithium cells or the like |
May. 20, 1997 |
| 5606240 |
Battery charger |
Feb. 25, 1997 |
| 5596259 |
Method of charging a secondary battery |
Jan. 21, 1997 |
| 5519302 |
Battery charger which suspends charging according to a voltage drop and restarts charging according to battery temperature |
May. 21, 1996 |
| 5451880 |
Battery-charging circuit |
Sep. 19, 1995 |
| 5391973 |
Method of charging a multiplicity of batteries |
Feb. 21, 1995 |
| 5325039 |
Method and apparatus for controlling power supply |
Jun. 28, 1994 |
| 5304916 |
Battery charger |
Apr. 19, 1994 |
| 5274321 |
Battery charger |
Dec. 28, 1993 |
| 4876495 |
Apparatus and method for charging and testing batteries |
Oct. 24, 1989 |
| 4779050 |
Circuit arrangement for judging the lifetime of a battery in a no-break power supply system |
Oct. 18, 1988 |
| 4745349 |
Apparatus and method for charging and testing batteries |
May. 17, 1988 |
| 4742289 |
Method for the cyclical trickle charging of a chargeable battery intended for emergency operation |
May. 3, 1988 |
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