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Browse by Category: Main > Electrical & Energy
Class Information
Number: 320/164
Name: Electricity: battery or capacitor charging or discharging > Battery or cell charging > With 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.


Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
7605568 Deep under voltage recovery in a battery pack Oct. 20, 2009
7567062 Charging circuit Jul. 28, 2009
7541782 System and method for extracting energy from an ultracapacitor Jun. 2, 2009
7538519 Information handling system with battery protected from non-permanent failures May. 26, 2009
7531990 Voltage detector for an assembled battery May. 12, 2009
7528582 Battery charging and discharging by using a bi-directional transistor May. 5, 2009
7525291 Linearly regulated battery charger Apr. 28, 2009
7518342 Apparatus and method for effecting power distribution to a host system from a voltage source or a battery Apr. 14, 2009
7508315 Signaling device and method of alerting a work machine operator to a predetermined condition using same Mar. 24, 2009
7501794 System, method and semiconductor device for charging a secondary battery Mar. 10, 2009
7479765 Integrated circuit for controlling charging, charging device using the integrated circuit, and method for detecting connection of secondary battery Jan. 20, 2009
7459887 Voltage detection circuit, overcurrent detection circuit, charging current control system, and voltage detection method Dec. 2, 2008
7342363 Methods and apparatus for an improved amplifier for driving a dynamic load Mar. 11, 2008
7102415 Trip-point detection circuit Sep. 5, 2006
6861824 Charger system with dual-level current regulation and dual-level thermal regulation Mar. 1, 2005
6859016 Lithium-ion battery charger input pre-regulator Feb. 22, 2005
6815931 Marine charge source switching system Nov. 9, 2004
6798175 Power supply circuit Sep. 28, 2004
6583998 Power supply regulating having novel charging circuitry Jun. 24, 2003
6429626 Battery pack Aug. 6, 2002
6351110 Battery charger with current regulating circuit Feb. 26, 2002
6275010 Battery charger Aug. 14, 2001
6222346 Battery protection device Apr. 24, 2001
6222347 System for charging portable computer's battery using both the dynamically determined power available based on power consumed by sub-system devices and power limits from the battery Apr. 24, 2001
6204634 Adaptive charging method for lithium-ion battery cells Mar. 20, 2001
6194875 Controller for DC-DC converter Feb. 27, 2001
6163136 Transistor driven wall charger Dec. 19, 2000
6154009 Power supply monitoring IC and battery pack Nov. 28, 2000
6144187 Power measurement for adaptive battery charger Nov. 7, 2000
6133712 Battery charge controller having an adjustable termination current Oct. 17, 2000
6127809 Adaptive power battery charging apparatus Oct. 3, 2000
6100667 Current-to-voltage transition control of a battery charger Aug. 8, 2000
6091229 Sub-miniature high efficiency battery charger system and method Jul. 18, 2000
6081197 Fire detector silenceable low battery pre-alarm Jun. 27, 2000
6046575 Fail safe circuit and battery pack using same Apr. 4, 2000
6020722 Temperature compensated voltage limited fast charge of nickel cadmium and nickel metal hybride battery packs Feb. 1, 2000
6014030 Current-level monitor with hierarchical precision Jan. 11, 2000
6005371 Charging apparatus Dec. 21, 1999
5998972 Method and apparatus for rapidly charging a battery of a portable computing device Dec. 7, 1999
5990665 Power circuit Nov. 23, 1999
5990663 Charge/discharge control circuit and charging type power-supply unit Nov. 23, 1999
5982153 Charger system switchably connects a smoothing capacitor and resistor and charging controller based on a detected secondary battery voltage Nov. 9, 1999
5982148 Method and apparatus for monitoring the self discharge of a secondary battery upon completion of a charge cycle Nov. 9, 1999
5973480 Battery charger capable of charging a variety of batteries with varying cell numbers Oct. 26, 1999
5959437 Charge and discharge control circuit Sep. 28, 1999
5939862 Adaptive power battery charging apparatus Aug. 17, 1999
5936384 Charge and discharge protection circuit and battery pack with high withstand voltage Aug. 10, 1999
5914586 Power supply Jun. 22, 1999
5903764 Smart battery selector offering power conversion internally within a portable device May. 11, 1999
5903136 Method for charging secondary batteries May. 11, 1999

1 2 3 4


 
 
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