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| Number | Title | Issue Date |
| 8035354 | Battery full-charge detection for charge-and-play circuits The present invention relates to a battery charge circuit (100) in a charge-and-play mode capable to reliably determine the completion of a battery charging operation has been described. Such a determination takes into account the behavior of the battery char... | 10/11/2011 |
| 7884578 | Battery charging circuit with backflow prevention transistor, portable electronic device and semiconductor integrated circuit with backflow prevention transistor A battery charging circuit is used by being connected to a direct-current power source. The battery charging circuit includes a control transistor, a backflow prevention transistor and a charging controller. The control transistor is disposed in a charging path betw... | 02/08/2011 |
| 7363175 | Query based electronic battery tester An electronic battery tester for testing a storage battery provides a test output indicative of a condition of the battery. Electronic measurement circuitry provides a measurement output related to a condition of the battery. The battery condition is determined base... | 04/22/2008 |
| 7319304 | Shunt connection to a PCB of an energy management system employed in an automotive vehicle A method of coupling a shunt to a printed circuit board (PCB) of an energy management system is provided. The method includes coupling flexible electrical connectors to the shunt and soldering the flexible electrical connectors to connection points on the PCB of the... | 01/15/2008 |
| 7309966 | Motor vehicle A motor vehicle comprising at least one electric motor, an energy storage device for providing drive energy for the electric motor, a plug connector connected to the energy storage device for connection to a current source and a control means for controlling the flo... | 12/18/2007 |
| 7295936 | Electronic battery tester with relative test output An electronic battery tester for testing a storage battery determines a condition of the battery. The condition is a relative condition and is a function of a dynamic parameter of the battery and an empirical input variable. ... | 11/13/2007 |
| 7246015 | Alternator tester An alternator tester is provided for testing an alternator of a vehicle while the alternator is coupled to the vehicle. A sensor is configured to couple to the vehicle and sense a signal related to operation of the alternator. A memory contains data related to opera... | 07/17/2007 |
| 7218076 | Battery charging system A battery charging system comprising: a current source; a battery; and a voltage and current regulator, which regulates voltage applied to the battery and current supplied to the battery. The battery charging system shapes the current supplied to the battery, and ma... | 05/15/2007 |
| 7208917 | Serial charger with the function of automatic change of charging speed for NICD/NIH batteries A serial charger with the function of automatic change of charging speed for NiCd/NiH batteries is provided where the different charging modes for multi-speed (four speed) charging process, two speed charging process or two speed charging process in two charging pha... | 04/24/2007 |
| 7190171 | Detecting method and detecting apparatus for detecting internal of rechargeable battery, rechargeable battery pack having said detecting apparatus therein, apparatus having said detecting apparatus therein, program in which said detecting method is incorporated, and medium in which said program is stored A detecting method for detecting internal resistance of an inspective rechargeable battery when said inspective rechargeable battery is charged by the constant current-constant voltage charging regime, said detecting method comprising at least a step (a) wherein an ... | 03/13/2007 |
| 7126341 | Automotive vehicle electrical system diagnostic device An automotive vehicle electrical system diagnostic apparatus includes first and second electrical connections configured to electrically couple to an electrical system of an automotive vehicle which includes a battery. Digital samples are obtained during operation o... | 10/24/2006 |
| 7106070 | Broad-band low-inductance cables for making Kelvin connections to electrochemical cells and batteries A broad-band technique for reducing the distributed inductance of a four-conductor Kelvin cable is disclosed. A special inductance-canceling cable section is connected in tandem with the cable section contacting the cell/battery. Connections between the two cable se... | 09/12/2006 |
| 7098627 | Method and apparatus for battery charging with constant current, constant voltage, and pulsed charging A second battery charging apparatus includes a voltage detecting circuit, a current detecting circuit, a charging circuit, and a charge control circuit. The voltage detecting circuit detects a battery voltage of the second battery and accordingly outputs a signal. T... | 08/29/2006 |
| 7034541 | Query based electronic battery tester An electronic battery tester for testing a storage battery provides a test output indicative of a condition of the battery. Electronic measurement circuitry provides a measurement output related to a condition of the battery. The battery condition is determined base... | 04/25/2006 |
| 7015699 | Standby electric supply and a method for controlling the operation of a standby electric supply The standby electric supply comprises an accumulator which comprises multiple interconnected blocks, a switching portion that conditionally connects the accumulator to a load or to a charging current supply and a measurement and control portion that produces measure... | 03/21/2006 |
| 7003410 | Electronic battery tester with relative test output An electronic battery tester for testing a storage battery determines a condition of the battery. The condition is a relative condition and is a function of a dynamic parameter of the battery and an empirical input variable. ... | 02/21/2006 |
| 7003411 | Electronic battery tester with network communication An electronic battery tester for testing a storage battery includes test circuitry configured to provide a battery test output related to a condition of the battery. A memory stores a battery tester address of the battery tester, and communication circuitry transmit... | 02/21/2006 |
| 6998847 | Electronic battery tester with data bus for removable module An electronic battery tester is provided for testing storage batteries. Battery test circuitry is configured to couple to the storage battery and measure a condition of the battery. A removable module is configured to couple to the battery tester to add increased fu... | 02/14/2006 |
| 6972546 | Power system A power system causes no variation in output voltage during switching from a linear regulator to a DC-DC converter. The power system switches off a drive circuit of a DC-DC converter and supplies voltage to a load from a linear regulator if the load is light, while ... | 12/06/2005 |
| 6958591 | Battery charging safety circuit for simultaneous startup and rapid surge current clamping A safety circuit monitors a charging signal supplied by a charging circuit for charging a battery. Damage to the battery may occur when the voltage at the input terminal of the battery rises above the safe level for the battery. A voltage drop across a coupling circ... | 10/25/2005 |
| 6943530 | Battery charging system A battery charging system comprising: a current source; a battery; and a voltage and current regulator, which regulates voltage applied to the battery and current supplied to the battery. The battery charging system shapes the current supplied to the battery, and ma... | 09/13/2005 |
| 6943529 | Battery charging system A battery charging system comprising: a current source; a battery; and a voltage and current regulator, which regulates voltage applied to the battery and current supplied to the battery. The battery charging system shapes the current supplied to the battery, and ma... | 09/13/2005 |
| 6906523 | Method and apparatus for testing cells and batteries embedded in series/parallel systems A “three-point” measurement technique effectively removes system effects to determine impedance, admittance, resistance, or conductance of an individual cell, battery, or interconnecting conductor embedded in a series or series-parallel electrochemical battery o... | 06/14/2005 |
| 6871290 | Method for reducing a magnitude of a rate of current change of an integrated circuit A method for reducing a magnitude of a rate of current change of an integrated circuit is provided. The method uses a plurality of transistors controlled by a finite state machine, such as a counter, to gradually reduce current sourced from a power supply. Further, ... | 03/22/2005 |
| 6285166 | Battery charger with improved overcharge protection mechanism and method of operation thereof A battery charger with improved overcharge protection mechanism and method of charging a battery with such charger. In one embodiment, the charger includes: (1) a voltage sensor for sensing a voltage of a battery that the battery charger is charging and (... | 09/04/2001 |
| 5923150 | Charging apparatus A charging apparatus for controlling so as to charge a connected secondary battery by a constant current which is equal to or less than a constant voltage and to charge the secondary battery by a constant voltage which is equal to or less than the constan... | 07/13/1999 |
| 5864224 | Method for charging secondary battery and charger therefor The present invention provides a method for charging a secondary battery and a charger by which it can be prevented that a secondary battery is charged at very high or low temperature, and that the secondary battery is charged for a long time. Therefore, ... | 01/26/1999 |
| 5721480 | System and method for controlling charging of secondary battery that requires constant-voltage charge control In a system for charging a rechargeable battery with constant voltage, a power supply supplies a voltage increased with time. An overvoltage generating circuit outputs an overvoltage signal for a first predetermined period when a supplied voltage to the r... | 02/24/1998 |
| 5677612 | Lead-acid battery desulfator/rejuvenator A lead-acid (SLI) battery desulfator which is powered by the batteries wh it is conditioning when a motor associated with the batteries is off. The desulfator activates whenever an alternator supplies charge to the battery then deactivates itself upon ex... | 10/14/1997 |
| 5631541 | Electronic appliance, recharging method and recharging apparatus An electronic appliance such as a digital audio disk player in which either an external power source, or a secondary cell is employed as a power source, includes a signal reproducing unit, a recharging unit, a judging unit, a measuring unit, and a control... | 05/20/1997 |
| 5627453 | Smart battery odometer A rechargeable battery pack including a microcontroller connected to a voltage measuring circuit and a current measuring circuit for measuring, respectively, the voltage across and the current flowing from a battery. Upon each expiration of a predefined t... | 05/06/1997 |
| 5589755 | Method and apparatus for charging a secondary battery A secondary battery is charged with a constant voltage, while a charging current generated by the application of the constant voltage is monitored. After the charging current becomes smaller than a predetermined current value, an open circuit voltage of t... | 12/31/1996 |
| 5576608 | Method for charging secondary battery and charger used therefor A secondary battery charging method and a charger used therefor, in which the method uses a constant current and a constant voltage such that the secondary battery is first charged with the constant current until the terminal voltage of the battery become... | 11/19/1996 |
| 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 decreasing charging current A battery charging method for charging a battery such as a lead acid storage battery quickly, and a battery charging apparatus used in carrying out the battery charging method, includes an initial charging process between times 0 to t1, a quick charging p... | 03/19/1996 |
| 5486750 | Battery charger with polarity sensing and timer A battery charge system includes an electronic polarity sensing, a charging circuit and a timer. When a battery to be charged is connected, the polarity sensing circuit automatically recognizes the polarity of the inserted battery and the drive circuit ch... | 01/23/1996 |
| 5396164 | Battery charging apparatus capable of completely charging secondary cell in safety Battery charging apparatus is provided between a power source and a secondary cell which charges the secondary cell by direct current (DC) power. The apparatus includes a power generation circuit for generating the DC power, a pulse generation circuit for... | 03/07/1995 |
| 5396163 | Battery charger A charger for rechargeable cells or batteries utilizes a mechanism whereby resistance-free voltage is continually monitored during periodic current-off intervals in the charging process and compared to an independent reference voltage to prevent overcharg... | 03/07/1995 |
| 5283513 | Battery charging device for electric vehicles A battery charging device for electric vehicles with a high-voltage battery, has a first connector to be connected with a high-voltage power source outside the vehicle, a second connector to be connected with a low-voltage power source outside the vehicle... | 02/01/1994 |
| 5274320 | Method for charging radio telephone system A method for charging a radio telephone system including a radio telephone set having a chargeable battery built therein, wherein a power consumption of the radio telephone set is calculated on the basis of a data relating to the power consumption of the ... | 12/28/1993 |
| 5200689 | Battery charge monitor to determine fast charge termination A battery charge controller and fuel gauge which accurately monitors the voltage, temperature, and charge and discharge current of a rechargeable battery, and calculates the battery's charge capacity and charge level. Each time the battery is fully discha... | 04/06/1993 |
