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Class Information
Number: 320/159
Name: Electricity: battery or capacitor charging or discharging > Battery or cell charging > Time control > Detection of current or voltage amplitude > Having solid-state control device > Detection of current and voltage amplitude
Description: Subject matter including means to measure the magnitude of charging current and the magnitude of battery or cell voltage to determine the state-of-charge of the battery or cell.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7622929 |
Pulse-discharge battery testing methods and apparatus |
Nov. 24, 2009 |
| 7554299 |
Battery monitoring circuit and method |
Jun. 30, 2009 |
| 7538519 |
Information handling system with battery protected from non-permanent failures |
May. 26, 2009 |
| 7449865 |
Battery charger for preventing both overshoot charging currents and overcharged battery voltage during mode transitions and method thereof |
Nov. 11, 2008 |
| 7098627 |
Method and apparatus for battery charging with constant current, constant voltage, and pulsed charging |
Aug. 29, 2006 |
| 6871290 |
Method for reducing a magnitude of a rate of current change of an integrated circuit |
Mar. 22, 2005 |
| 6285166 |
Battery charger with improved overcharge protection mechanism and method of operation thereof |
Sep. 4, 2001 |
| 5923150 |
Charging apparatus |
Jul. 13, 1999 |
| 5864224 |
Method for charging secondary battery and charger therefor |
Jan. 26, 1999 |
| 5721480 |
System and method for controlling charging of secondary battery that requires constant-voltage charge control |
Feb. 24, 1998 |
| 5677612 |
Lead-acid battery desulfator/rejuvenator |
Oct. 14, 1997 |
| 5631541 |
Electronic appliance, recharging method and recharging apparatus |
May. 20, 1997 |
| 5627453 |
Smart battery odometer |
May. 6, 1997 |
| 5589755 |
Method and apparatus for charging a secondary battery |
Dec. 31, 1996 |
| 5576608 |
Method for charging secondary battery and charger used therefor |
Nov. 19, 1996 |
| 5500584 |
Battery charging method and apparatus using initial charging step with gradually increasing charging current, quick charging step with large charging current and final charging step with decre |
Mar. 19, 1996 |
| 5486750 |
Battery charger with polarity sensing and timer |
Jan. 23, 1996 |
| 5396164 |
Battery charging apparatus capable of completely charging secondary cell in safety |
Mar. 7, 1995 |
| 5396163 |
Battery charger |
Mar. 7, 1995 |
| 5283513 |
Battery charging device for electric vehicles |
Feb. 1, 1994 |
| 5274320 |
Method for charging radio telephone system |
Dec. 28, 1993 |
| 5200689 |
Battery charge monitor to determine fast charge termination |
Apr. 6, 1993 |
| 5185566 |
Method and apparatus for detecting the state of charge of a battery |
Feb. 9, 1993 |
| 5179335 |
Battery charger |
Jan. 12, 1993 |
| 5175485 |
Apparatus for controlling charging of a storage battery |
Dec. 29, 1992 |
| 5089762 |
Battery disconnect device |
Feb. 18, 1992 |
| 5089763 |
Battery charging unit for a medical appliance |
Feb. 18, 1992 |
| 5075614 |
Device ascertaining the time required to charge a battery and timing the charge |
Dec. 24, 1991 |
| 4779050 |
Circuit arrangement for judging the lifetime of a battery in a no-break power supply system |
Oct. 18, 1988 |
| 4667143 |
Battery charger having temperature compensated charge rate |
May. 19, 1987 |
| 4654573 |
Power transfer device |
Mar. 31, 1987 |
| 4641078 |
Method for charging electrical storage batteries |
Feb. 3, 1987 |
| 4602204 |
Auto-start and magnetic shut down battery charging and surveillance circuits |
Jul. 22, 1986 |
| 4584514 |
High frequency switching battery charger |
Apr. 22, 1986 |
| 4553081 |
Portable battery powered system |
Nov. 12, 1985 |
| 4450401 |
Control circuit for automatic battery chargers |
May. 22, 1984 |
| 4439719 |
Variable timing circuit for motive power battery chargers |
Mar. 27, 1984 |
| 4396880 |
Method and apparatus for charging a battery |
Aug. 2, 1983 |
| 4320333 |
Battery charger and surveillance system |
Mar. 16, 1982 |
| 4207513 |
Automatic battery charger |
Jun. 10, 1980 |
| 4153867 |
Device for determining the charge condition for a secondary electric storage battery |
May. 8, 1979 |
| 4052656 |
Battery charging system |
Oct. 4, 1977 |
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