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| Number | Title | Issue Date |
| 8169192 | Wireless power storage device, semiconductor device including the wireless power storage device, and method for operating the same To simplify charging of a battery in a power storage device which includes the battery. Further, to provide a wireless power storage device which can transmit and receive information without the task of replacing a battery for drive power supply, which becomes neces... | 05/01/2012 |
| 8159189 | Battery state of health monitoring system and method A state-of-health monitoring and prognosis method and system for a battery includes a signal preprocessing module for monitoring battery terminal voltage and current and extracting a portion of the battery terminal voltage and current corresponding to an engine cran... | 04/17/2012 |
| 8159190 | Method for controlling the end of the discharge of a rechargeable battery The method for controlling the end of discharge of a rechargeable battery according to the invention comprises determining the transition frequency of the battery and determining an end-of-discharge criterion of the battery according to said transition frequency. Sa... | 04/17/2012 |
| 8159191 | Advanced rechargeable battery system A rechargeable battery system having a plurality of cells in series circuits for high voltage applications. Cells, cell sets and cell packs in series circuits are protected from over-charging with self-discharging devices. The rechargeable battery system is protecte... | 04/17/2012 |
| 8154255 | Systems and methods for waking up a battery system Systems and methods for waking up a battery system (e.g., battery pack such as a smart battery pack) installed in an information handling system from a shipping mode in response to the occurrence of one of at least two detected events. The first of these of these at... | 04/10/2012 |
| 8148948 | Adaptive low voltage disconnect controller, method of protecting a battery and a power system manager Provided herein is a controller for a low voltage disconnect (LVD), a method of protecting and providing a maximum or substantially maximum battery reserve coupled to a DC load bus and a power system manager. In one embodiment, the LVD controller includes an adaptiv... | 04/03/2012 |
| 8148947 | Discharge state indicator A circuit for displaying the state of a battery that is almost discharged features a battery, an inductive load, and a controllable switch connected in series. The circuit also includes a display element connected in series with the inductive load and the battery. T... | 04/03/2012 |
| 8125193 | Method of testing an electrochemical device Methods and associated apparatus for testing an electrochemical device, such as a fuel cell. A first method involves charging the fuel cell during a charge period; discharging the fuel cell during a discharge period; and monitoring the response of the fuel cell duri... | 02/28/2012 |
| 8120325 | Battery short circuit monitoring A system measures a voltage of a battery of a user device, measures a temperature and an acceleration of the battery if a decrease in battery voltage is measured, and determines whether the battery is functioning properly based on one or more of the measured voltage... | 02/21/2012 |
| 8120326 | Rechargeable battery with an internal discharger for shifting the load state of the battery to a lower load state A rechargeable battery having a switch connects an internal load to the battery so that the battery can be shifted to a predetermined, lower load state. To shift the rechargeable battery into a lower load state for long-term storage, a Zener diode is connected in se... | 02/21/2012 |
| 8102154 | Energy source isolation and protection circuit for an electronic device An energy source isolation and protection circuit is provided for an electronic device, such as a patient-worn or patient-carried medical device. The isolation and protection circuit includes a supply voltage rail, a reference voltage rail, an electrical load couple... | 01/24/2012 |
| 8102155 | Discharge controller A discharge controller includes a secondary battery, a switch section for opening/closing a discharge path from the secondary battery to a load, a voltage detector for detecting a terminal voltage of the secondary battery, and a cut-off voltage control section for c... | 01/24/2012 |
| 8084999 | Method for charging lithium batteries with power dissipation control Herein described are at least methods and systems to control power dissipation while charging a device. In a representative embodiment, the method comprises first monitoring a first voltage output by a charger used for said charging a battery of a device, second mon... | 12/27/2011 |
| 8035346 | Battery protection circuit and protection method A battery protection circuit and protection method for a rechargeable battery is provided. The rechargeable battery includes a positive voltage pin, a negative voltage pin, and a temperature sensing pin. A resistance of the temperature sensing pin varies with the te... | 10/11/2011 |
| 8026698 | Scalable intelligent power supply system and method A scalable intelligent power-supply system and method capable of powering a defined load for a specified period of time is disclosed and claimed. Multiple external AC and DC inputs supply power to the system if available and required. An internal DC input from a bac... | 09/27/2011 |
| 8018202 | Circuit for measuring and controlling differential voltages The invention relates to circuits for managing differential voltages in series. To individually control the differential voltages of voltage sources in series, there is provided an integrated control circuit for a set of N sources in series. This circuit comprises N... | 09/13/2011 |
| 8018203 | Control system of secondary battery and hybrid vehicle equipped with the same A battery model unit includes an electrode reaction model unit based on the Butler_Volmer equation, an electrolyte lithium concentration distribution model unit analyzing a lithium ion concentration distribution in an electrolyte solution by a diffusion equation, an... | 09/13/2011 |
| 8008893 | Battery analysis system A battery analysis system includes a control module, a measurement module, and a pulse power module. The control module controls current to a battery to one of charge and discharge the battery. The measurement module determines N voltages across the battery at N tim... | 08/30/2011 |
| 8004246 | Battery cell monitoring and balancing circuit A monitoring circuit for accurately monitoring a voltage level from each of a plurality of battery cells of a battery pack includes an analog to digital converter (ADC) and a processor. The ADC is configured to accept an analog voltage signal from each of the plural... | 08/23/2011 |
| 7999515 | Battery characterization technique accounting for offset error The present invention provides a system and method for operating a rechargeable battery, the system comprising: current maintaining device for maintaining a predetermined current to the rechargeable battery until the rechargeable battery reaches a predetermined maxi... | 08/16/2011 |
| 7990109 | Temperature and polarization voltage compensation system A control module for a battery that powers a load includes a compensation module that adjusts a shutoff voltage based on voltage and impedance of the battery and current drawn by the load from the battery as time the load is drawing current increases. A discharge co... | 08/02/2011 |
| 7982435 | Battery charging and discharging control apparatus A battery charging-discharging control apparatus includes an estimation circuit, a detection circuit, and a control circuit. The estimation circuit estimates an internal resistance of a battery. The detection circuit detects a charging-discharging current of the bat... | 07/19/2011 |
| 7977919 | Over-voltage protection accounting for battery droop An over-voltage detection and correction system for a transmitter of a mobile terminal that accounts for battery droop during a transmit burst is provided. In general, prior to ramp-up for a first transmit burst, a voltage of the battery of the mobile terminal at a ... | 07/12/2011 |
| 7965060 | Apparatus for equalizing capacity of secondary battery, and discharge controller A device for appropriately controlling capacitive variations between battery blocks. A voltage measurement section periodically measures a terminal voltage of each battery block by way of respective potential detection lines electrically connected to both terminals ... | 06/21/2011 |
| RE42385 | Universal USB charging accessory Embodiments of the present invention relate to an apparatus for supplying power to electronic devices, comprising a housing, an electric power source connector coupled to the housing, an electronic circuit enclosed in the housing and electrically coupled to the powe... | 05/24/2011 |
| 7932701 | Power tool A power tool 1 is connected to a battery pack 5 including an overcurrent detector 533 which detects overcurrent of a battery module 51 and outputs a detection signal, and an overdischarge detector 532 which detects overdischarge of... | 04/26/2011 |
| 7928697 | Wireless power storage device, semiconductor device including the wireless power storage device, and method for operating the same To simplify charging of a battery in a power storage device which includes the battery. Further, to provide a wireless power storage device which can transmit and receive information without the task of replacing a battery for drive power supply, which becomes neces... | 04/19/2011 |
| 7898221 | Varying-temperature operation of battery-powered electronic devices In one embodiment, a consumer electronic device has a rechargeable battery, battery safety circuitry, and consumer electronic device circuitry with a controller. The rechargeable battery has a present temperature and a presently available effective capacity, and pro... | 03/01/2011 |
| 7876071 | Integrated battery voltage sensor with high voltage isolation, a battery voltage sensing system and methods therefor An integrated circuit battery sensor and system thereof are provided. The battery sensor includes a voltage sensor configured to sample a voyage of a battery and a buffer in electrical communication with the voltage sensor and configured for scaling the sampled batt... | 01/25/2011 |
| 7859227 | State-of-charge adjusting apparatus The state-of-charge adjusting apparatus which enables to shorten a time to reach a capacity equalization is provided. A CPU extracts a block consisting of a plurality of unit cells connected continuously to each other, the plurality of the unit cells each having a v... | 12/28/2010 |
| 7834590 | Electronic system for a battery An electronic system for a battery comprises a charging circuit (20) for the battery connected to a connector powering the charging circuit (15), a control and monitoring circuit (30) for the operation of the battery, and a discharge circuit con... | 11/16/2010 |
| 7830124 | Battery monitor circuit and method for battery tamper detection A battery monitor circuit. The circuit includes a control module, a resistive load having a resistive value between a first and a second terminals and a part of that resistive value between the first and an intermediate terminals, a switch configured to couple the f... | 11/09/2010 |
| 7830125 | Anti-swell protection circuit for battery cells The present invention provides a protection circuit and method for preventing a battery from swelling in one embodiment. The protection circuit includes: a voltage monitoring circuit that monitors a voltage across the battery; a control circuit that receives voltage... | 11/09/2010 |
| 7830123 | System and method for operating a rechargeable battery having a defective module The invention relates to control of a battery, permitting a reduction in the number of components of the battery. The battery comprises several modules (2a, . . . , 2n), each module comprising a charge limiting circuit (4). When a ... | 11/09/2010 |
| 7816891 | Active voltage management system for energy storage device An active voltage management device and a method for actively managing a voltage level of an energy storage device are provided. The active voltage management device comprises: a pair of input terminals adapted to be connected to the energy storage device; a reverse... | 10/19/2010 |
| 7786701 | Compensation for parasitic resistance in battery monitoring A system for balancing charge between a plurality of storage battery cells within a storage battery. The battery balancing system may sense changes, possibly caused by environmental influences, in the overall resonant frequency of charge balancing circuits contained... | 08/31/2010 |
| 7768238 | System and method for remote monitoring of battery condition A battery monitoring system may be configured to interface with a first battery monitoring unit and a second battery monitoring unit. The first battery monitoring unit may be configured to output data in a first format. The second battery monitoring unit may be conf... | 08/03/2010 |
| 7764049 | Method and device for determining battery discharge capability, and power supply system A method for determining battery discharge capability includes estimating the optimum state vector X by an extended Kalman filter operation. Using the estimated state vector X, element parameters of an equivalent circuit are renewed. Furthermore, based on the equiva... | 07/27/2010 |
| 7733063 | Apparatus for calculating quantity indicating charged state of on-vehicle battery An apparatus is provided to calculate a quantity indicating a charged state of an on-vehicle battery. The battery powers a starter starting up an on-vehicle engine. In the apparatus, a plurality of pairs of data consisting of current and voltage of the battery are a... | 06/08/2010 |
| 7728557 | Electric discharge controller, electric discharge control method and its program The electric charge of a capacitor can be reliably discharged. Therefore, an electric discharge controller has an electrically operated machine, an inverter, a capacitor, a voltage command value generating processor for generating a voltage command value for driving... | 06/01/2010 |
