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| Number | Title | Issue Date |
| 8188717 | Active communications bus power harvester for differential signal communication system A balanced differential signal communication system having at least two data lines connecting multiple nodes in series, each node comprising a signal generator for applying signals to the data lines that produce a controllable differential voltage across the data li... | 05/29/2012 |
| 8164308 | Apparatus and method for capturing cosmic background radiation and converting the same to electricity There is provided an apparatus for capturing cosmic background radiation and for converting cosmic background radiation into electricity. An antenna is configured so as to capture cosmic background radiation. An electrostatic electron multiplier is connected to the ... | 04/24/2012 |
| 8159192 | Method for charging a nickel-metal hydride battery A method for charging a nickel-metal hydride storage battery comprising a positive electrode containing nickel hydroxide, a negative electrode containing a hydrogen absorbing alloy, an alkaline electrolyte, and an alkali conducting separator provided between the pos... | 04/17/2012 |
| 8138723 | Remote battery charging system with dynamic voltage adjustment and method of use In a remote battery charging system comprising a charging circuit there is always a voltage loss due to inherent resistances in the system from such things as connectors and conductors. These resistances create voltages losses in the system such that charging time a... | 03/20/2012 |
| 8134341 | Energy harvesting based on user-interface of mobile computing device Embodiments of the invention relate to a mobile computing device with ambient energy harvesting capability. Embodiments of the invention, when manually operated by a user, convert the kinetic motion of a part of the user's hand, applied onto a controller of the devi... | 03/13/2012 |
| 8125194 | Laptop computer storage and battery charging systems and methods including transient current inrush limiter A control system of a laptop computer storage system comprises a plurality of receptacles for charging one or more laptop computer batteries. A first switch may be provided for coupling the receptacles to a power source via a current limiter having an impedance that... | 02/28/2012 |
| 8106632 | Method for managing a bank of rechargeable batteries using the coup de fouet effect on charging The batteries of at least one battery subset are partially and preferably simultaneously charged; during this partial charging, electrical parameters representative of a coup de fouet effect on charging are measured to enable the extent of discharge of each of the b... | 01/31/2012 |
| 8106631 | Charge control device for batteries In a charge control device installable in a motor vehicle and designed to execute charge control for a battery based on an output power of a power generator, a nonvolatile memory stores therein data required to execute the charge control for the battery. A communica... | 01/31/2012 |
| 8098049 | Techniques for charging a wireless device A technique for charging a wireless device includes detecting a physical presence of a user with respect to the device. A magnetic force is provided between a charging pad and the device only when the physical presence of the user, with respect to the device, is not... | 01/17/2012 |
| 8085000 | Charger including a bias voltage applied to a rectifier to rectify received radio waves based on rectifier output voltage A charger includes: a rectifier to rectify a received radio wave to generate a charging current; a potential generator to generate a bias voltage setting an operating point of the rectifier; and a controller to supply the bias voltage generated by the potential gene... | 12/27/2011 |
| 8063597 | Electric circuit providing protection from transients An electric circuit for supplying power to a DC application is disclosed. The electric circuit comprises a DC power source (1) connectable to an alternator charging circuit (2), an FET (T7), and a capacitor (8) connected across the gate t... | 11/22/2011 |
| 8058848 | Vehicle charging system A charger is operable in a normal mode such that output power matches a provided electric power command value CHPW, and limits the output power to a limit value PS in a saving mode if the electric power command value CHPW exceeds the limit value PS. A charging ECU p... | 11/15/2011 |
| 8040109 | Battery terminal inspection apparatus, inspection method, and cylindrical dry battery Poor contact on a terminal face that is likely to especially occur with a dry battery with low electromotive force can be appropriately inspected and suppressed. Moreover, the inspection can be highly efficiently performed in a non-contacting state. Also, a cylindri... | 10/18/2011 |
| 8018204 | Compact ultra fast battery charger Disclosed is a charger device. The charger device includes a housing, defining a volume, that includes a power conversion module to provide output power of between 3-300 W, and a controller configured to determine a current level to direct to one or more rechargeabl... | 09/13/2011 |
| 7982436 | Battery cover with contact-type power receiver for electrically powered device An electronic system includes a power delivery support structure having a power delivery surface with first and second conductive regions. An electronic device includes a plurality of contacts arranged so at least one of them engages the first conductive region and ... | 07/19/2011 |
| 7973516 | Sliding conductor transmission cable Methods and devices for connecting a current source to a target storage device via a transmission cable extendable and/or retractable via a conduit that may be repositioned. ... | 07/05/2011 |
| RE42469 | Battery charger amusement device A battery charger amusement has a receptacle adapted to receive a rechargeable battery, an electronic circuit monitoring battery charge status, and a mechanical movement signal activated upon charge status attainment. The battery charger can include a motion actuato... | 06/21/2011 |
| 7902794 | Over-voltage protected battery charger with bypass A battery charger comprises charging circuitry for providing a battery charging voltage responsive to an input voltage. First circuitry provides both over-voltage protection and an input voltage bypass signal responsive to the input voltage. The first circuitry incl... | 03/08/2011 |
| 7876072 | Industrial truck with a charger Industrial truck with a charger, an asynchronous machine and a three-phase AC control unit which converts a DC voltage of a battery for the asynchronous machine, the charger having a switching power supply which is connected to the three-phase AC control unit via a ... | 01/25/2011 |
| 7868593 | Charging circuit of portable device A charging circuit of a portable device includes a switch circuit having an input connected to a storage battery of the portable device for triggering the storage battery to supply power to an electronic device, a reference voltage circuit, a regulating circuit, a f... | 01/11/2011 |
| 7847520 | Circuit and method of operation for an electrical power supply A battery charging circuit comprising: a semiconductor switch having an output connected to a rechargeable battery; a battery charge controller for receiving power from an external source, and supplying output power to a portable device and the input of the semicond... | 12/07/2010 |
| 7834591 | Switching battery charging systems and methods Embodiments of the present invention include techniques for charging a battery using a switching regulator. Some embodiments include programmable switching battery chargers that can be configured using digital techniques. Other embodiments include switching battery ... | 11/16/2010 |
| 7825633 | Battery charger An apparatus is capable of charging a battery mounted aboard a robot while avoiding an unstable posture of the robot caused by a power feeding connector coming into contact to a power receiving connector of the robot. A battery charger of the present invention perfo... | 11/02/2010 |
| 7730981 | Lift truck with hybrid power source A lift truck power source includes a hybrid power supply including a storage battery, a capacitor bank, and optionally a fuel cell. The capacitor bank stores power produced during regeneration by either the truck traction system or the lift system and delivers curre... | 06/08/2010 |
| 7692407 | Terminal device A technology for charging the battery of a terminal device with efficiency. In a wireless game controller, a charge control unit supplies electric power from an external power supply to a battery. A communication management unit receives a drive request signal to a ... | 04/06/2010 |
| 7688036 | System and method for storing energy A self-recharging battery comprising a generator and an energy storage device contained within the battery case. The generator comprises a magnetic structure configured to generate a compressed magnetic field and a coil configured to focus the compressed magnetic fi... | 03/30/2010 |
| 7626364 | Secondary battery replacement method A replacement method is provided for replacing a to-be-replaced battery module with a replacing fresh battery module in a battery assembly formed by electrically connecting a plurality of battery modules in series or parallel. The method includes the step (S110 | 12/01/2009 |
| RE41015 | Bicycle battery charger and speedometer circuit A circuit that receives signals from a dynamo and provides signals for charging a battery and indicating bicycle speed. The circuit includes a first switching circuit adapted to receive the dynamo signals and provide first signals for charging the battery; and a sec... | 12/01/2009 |
| 7605568 | Deep under voltage recovery in a battery pack In one implementation, a method for charging a battery system is provided. The method includes enabling determining if a charger is coupled to a battery system, the battery system including one or more cells and a charge enable transistor. The method also includes e... | 10/20/2009 |
| 7598710 | Battery charger with temperature control A battery charger integrated circuit with temperature control is disclosed that includes a temperature sensor circuit and a charging current generator circuit. Upon receiving a temperature reading voltage (VDT), the temperature sensing circuit is operable to generat... | 10/06/2009 |
| 7489111 | Holstered cordless power tool The invention comprises a cordless power tool that has a power umbilical in the form of a coiled cord that connects the power tool to a power source, which in the preferred embodiment is a battery pack. In contrast to prior art approaches, the invention integrates t... | 02/10/2009 |
| 7429436 | Method for determining state of charge of lead-acid batteries of various specific gravities In accordance with various embodiments, there is a method for determining the state of charge of a battery. Various embodiments include the steps of determining the specific gravity of the battery and measuring an open circuit voltage of the battery at rest. The ope... | 09/30/2008 |
| 7402981 | Method and apparatus to perform battery charging using a DC-DC converter circuit A battery converter, which is used to convert battery voltage to an output voltage to power an integrated circuit in a battery-operated mode, is placed into a battery-charge mode to charge the battery when external power source is present to power the integrated cir... | 07/22/2008 |
| 7391184 | Systems and methods for integration of charger regulation within a battery system One or more charger regulation tasks (e.g., one or more of those tasks typically performed by charger regulator circuitry of a separate battery charging apparatus) are integrated within a battery system (e.g., a battery pack of a portable information handling system... | 06/24/2008 |
| 7386403 | Method and system for charging management A method and a system for charging management are applied in an electronic device. The system includes a sensing unit, a detecting unit, a signal output unit, a receiving unit and a processing unit. By the method, when the sensing unit senses an external power sourc... | 06/10/2008 |
| 7375497 | State of charge tracking system for battery systems A battery control module for a battery system comprises a voltage measuring module that measures battery and a current measuring module that measures battery current. A state of charge (SOC) module communicates with the current and voltage measuring modules and esti... | 05/20/2008 |
| 7372213 | Lamp current balancing topologies A method according to on embodiment may include generating AC voltage and current and a striking voltage. The method of this embodiment may also include generating striking voltage and steady-state voltage for at least two lamp loads. The method of this embodiment m... | 05/13/2008 |
| 7372236 | Charger and DC-DC converter A novel charger wherein a constant electric power control is made such that an electric power feed at the output end is the same as the electric power fed by a fuel cell at the input end, thereby keeping a cell charge current constant, reducing the number of compone... | 05/13/2008 |
| 7365515 | Universal battery charger To provide a universal battery charger with low power consumption during a standby condition and a rush current suppressing capability at the time of commencement of charging, a voltage slightly larger than a battery voltage is produced and applied to the battery. T... | 04/29/2008 |
| 7363522 | Apparatus and methods for information handling system with power supply device with variable output power An information handling system includes a power source configured to provide a plurality of power levels to a load. At least one of the plurality of power levels corresponds to a level obtained by de-rating a capacity of the power source from a nominal design specif... | 04/22/2008 |
