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| Number | Title | Issue Date |
| 8106629 | Charging method and device A charging method for a battery includes: enabling a charging device to charge the battery with a first charging voltage having a value that is increasing and a first charging current having a value that is constant; and when it is determined that the value of the f... | 01/31/2012 |
| 8102150 | Electronic apparatus, charger, charging system, and charging method An electronic apparatus 100 has a main circuit 4 operable by a power supply from a battery 1, and a switch 21 for changing ON/OFF of the power supply from the battery 1 to the main circuit 4. A switch control signal is produ... | 01/24/2012 |
| 8080978 | Battery charging system and method Methods, devices, and systems for charging a battery in a mobile device are provided. For example, in one embodiment, among others, a battery charging system includes a monitoring circuit configured to monitor a battery and generate a sense current. The battery char... | 12/20/2011 |
| 8049464 | Rechargeable battery and method for its operation An apparatus and a method are disclosed relating to a rechargeable battery for operation with an external voltage which is applied at least at times to the output of the rechargeable battery and is below the output voltage of the rechargeable battery when in its ful... | 11/01/2011 |
| 8022672 | Charger control circuit and charger control method The present invention discloses a charger control circuit and a charger control method for controlling a charger having a transformer, the transformer including a primary winding and a secondary winding. The charger control circuit comprises: a power switch coupled ... | 09/20/2011 |
| 8013575 | Charging device having protective switching element To prevent a battery pack from being over-discharged even under a state that the battery pack (a secondary battery) is connected to a discharging device that is not connected to an ac input power source for a long time. A charging device has a pair of output lines a... | 09/06/2011 |
| 8004239 | Battery management system for calculating charge and disharge powers A battery management system which can output a battery state enabling optimum charge and discharge control to be performed even when a temperature variation occurs among individual single cells. A plurality of temperature sensors measure temperature values of a batt... | 08/23/2011 |
| 8004240 | Non-isolated charger with bi-polar inputs Systems and methods are provided for an uninterruptable power supply having a positive DC bus, a neutral DC bus, and a negative DC bus. The uninterruptible power supply includes a battery charger circuit having an inductor, a first charger output, and a second charg... | 08/23/2011 |
| 7999511 | Battery charger A battery charger for charging a plurality of secondary batteries is provided. The charger is configured to be connected to a power supply circuit and configured so that an output of the circuit is connected to the batteries. The battery charger includes a first swi... | 08/16/2011 |
| 7990107 | Electronic device and charging control circuit An exemplary charging control circuit includes a signal shaping unit, a first switch unit, and a second switch unit. The signal shaping unit receives a control signal, and is capable of reshaping the received control signal to have a time interval transited from a f... | 08/02/2011 |
| 7990106 | Battery charging systems and methods with adjustable current limit Embodiments of the present invention include techniques for charging a battery using a regulator. In one embodiment, the present invention includes an electronic circuit comprising a regulator having an input coupled to a power source for receiving a voltage and a c... | 08/02/2011 |
| 7986129 | Method and system for float charging a battery Float charging a battery comprises charging a battery to a reference voltage that is less than a maximum voltage of the battery. A power source provides power to a charging circuit. The circuit supplies a reference voltage. An operational amplifier float charges the... | 07/26/2011 |
| 7982431 | Detection circuit A detection circuit that reduces circuit scale. A plurality of current amplifiers respectively generate a plurality of detection signals corresponding to current flowing to a plurality of resistors. An error amplifier coupled to the plurality of current amplifiers c... | 07/19/2011 |
| 7982430 | Battery and system power selector integration scheme For operating each smart battery included in a smart battery system, the smart battery is initialized prior to the smart battery being electrically coupled to the smart battery system. The smart battery system or an external power source is selected to provide power... | 07/19/2011 |
| 7965058 | Charging and power supply for mobile devices Charging and power supply for mobile devices is disclosed. A USB-compliant charging and power supply circuit includes switch-mode battery charging circuitry for receiving power from an external power source and for supplying output power through an output node to an... | 06/21/2011 |
| 7952329 | Methods and system for backup power supply A system and methods for an avionics system are provided. The avionics system includes an enclosure, a recording device positioned within the enclosure, and an energy storage device positioned within the enclosure wherein the energy storage device electrically coupl... | 05/31/2011 |
| 7940026 | Methods and apparatus for charging a battery in a peripheral device A power manager for managing power delivered to a battery operated peripheral device is disclosed. The power manager includes an input current limiter arranged to suppress a power surge associated with an insertion event by a power cable arranged to provide an exter... | 05/10/2011 |
| 7911180 | Single-phase phase locked loop suitable for use in a hybrid vehicle charging system and method for charging a hybrid vehicle from a single-phase power source Apparatus for charging an electric vehicle or a hybrid vehicle are provided. Particularly, apparatus for charging a hybrid vehicle from a single-phase standard (110 volt, single-phase, 60 Hz in the U.S.) are provided. In one implementation, a single-phase phase lock... | 03/22/2011 |
| 7906939 | Soft-stop circuit and method for a voltage regulator A soft-stop circuit and method are provided for a voltage regulator which converts a battery voltage to an output voltage according to a feedback voltage derived from the output voltage and a reference voltage, to control the voltage regulator to enter a soft-stop s... | 03/15/2011 |
| 7893655 | Charging and power supply for mobile devices Charging and power supply for mobile devices is disclosed. A USB-compliant charging and power supply circuit includes switch-mode battery charging circuitry for receiving power from an external power source and for supplying output power through an output node to an... | 02/22/2011 |
| RE42114 | Control system for charging batteries and electronic apparatus using same A control system for charging enabling efficient charging of rechargeable batteries in an electronic apparatus which charges its rechargeable batteries by using a charger circuit when driving the apparatus by using an external power source, including first detecting... | 02/08/2011 |
| 7859224 | Charge control circuit for a vehicle vacuum cleaner battery Disclosed herein is a battery charger control circuit having a voltage detector to generate a signal indicative of a source voltage level to select one of a first charging mode and a second charging mode, and a charge controller coupled to the voltage detector to en... | 12/28/2010 |
| 7839122 | Charging apparatus There is provided a charging apparatus that, even when an AC adapter is connected and there is heavy load, makes it possible to reduce heat produced due to the power loss of a control transistor, reduce cost and area for implementation, and improve safety. Charging ... | 11/23/2010 |
| 7834587 | Non-isolated charger with bi-polar inputs Systems and methods are provided for an uninterruptable power supply having a positive DC bus, a neutral DC bus, and a negative DC bus. The uninterruptible power supply includes a battery charger circuit having an inductor, a first charger output, and a second charg... | 11/16/2010 |
| 7830118 | Battery recovery system A battery includes at least one rechargeable battery cell that is operable to store energy. An electronics unit is coupled to the at least one rechargeable battery cell, wherein the electronics unit is operable to control an operating condition of the battery, and w... | 11/09/2010 |
| 7786698 | Charging a secondary battery A method of charging a battery includes applying a charging current from a semiconductor device to the battery during a first battery charging time period. The method also includes measuring a charging voltage level at the battery during the first battery charging t... | 08/31/2010 |
| 7759900 | Non-isolated charger with bi-polar inputs Systems and methods are provided for an uninterruptable power supply having a positive DC bus, a neutral DC bus, and a negative DC bus. The uninterruptible power supply includes a battery charger circuit having an inductor, a first charger output, and a second charg... | 07/20/2010 |
| 7750602 | Method and apparatus for managing charge/discharge current of on-vehicle battery to control on-vehicle generator in consideration of offset of charge/discharge current An apparatus is provided to manage a charge/discharge current of an on-vehicle battery. The apparatus comprises a detecting unit detecting an actual amount of the charge/discharge current and a receiving unit receiving information indicating generating operations of... | 07/06/2010 |
| 7737659 | Battery charging method A battery charging method that charges a battery to a full charged state at a specified voltage. In the battery charging method, the battery is charged to the full charged state at the specified voltage that decreases as battery charging/discharging processes are re... | 06/15/2010 |
| 7737658 | Battery packs having a charging mode and a discharging mode A battery pack having a secondary battery is disclosed. The battery pack comprises at least one voltage converter; and switching means for switching an operation mode of the voltage converter to one of a charging mode and a discharging mode, in the charging mode, a ... | 06/15/2010 |
| 7733061 | Current control circuitry and methodology for controlling current from current constrained source Current control circuitry for controlling current supplied from a source, that may be a current-constrained source, to a load and a battery. A current limit control circuit limits current supplied by the source to the load in accord with a programmed current limit. ... | 06/08/2010 |
| 7710073 | Secondary battery module, battery information management device, battery information management system, secondary battery reuse system, secondary battery recovery and sales system, secondary battery reuse method, and secondary battery recovery and sales method A secondary battery module includes a battery information storage unit for storing electric characteristic information and usage history information of the secondary battery module. A battery information management device and a terminal device respectively include i... | 05/04/2010 |
| 7705562 | Switching power supply unit and disk array system An object of the invention is to provide a small and low-cost switching power supply unit with a backup function in which a proper circuit construction can be selected by simple method when it is necessary to compensate for the instantaneous drop or power failure an... | 04/27/2010 |
| 7705563 | Charging control semiconductor integrated circuit and secondary battery charging apparatus using the same A charging control semiconductor integrated circuit used in a charging apparatus for a secondary battery includes first and second terminals. The first terminal is configured to output a control signal to a first charging transistor in the charging apparatus. The se... | 04/27/2010 |
| 7701173 | Charging and power supply for mobile devices Charging and power supply for mobile devices is disclosed. A USB-compliant charging and power supply circuit includes switch-mode battery charging circuitry for receiving power from an external power source and for supplying output power through an output node to an... | 04/20/2010 |
| 7683576 | Smart lead acid battery charging/discharging management system A smart lead-acid battery charging/discharging management system comprised of one or a plurality of identical smart battery unit with each including a controller, a lead-acid battery, and a sensor switch device working together with a alternator and a voltage regula... | 03/23/2010 |
| 7679326 | Computer with multiple removable battery packs A computer comprises a computer chassis, a communication connector provided on a surface of the chassis to mate the computer with a docking station, and first and second battery packs. The first battery pack is adapted to mate to the surface of the chassis. The firs... | 03/16/2010 |
| 7675265 | Battery charger capable of suppressing the temperature increase of the power source circuit Battery pack may include rechargeable battery cells Battery charger may include power source circuit. Power source circuit may be connected with an external power source and battery cells. The external power source may supply power to the power source circuit and th... | 03/09/2010 |
| 7671564 | Integrated circuit for controlling charging, charging device using the integrated circuit, and method for detecting connection of secondary battery An integrated circuit for charging a secondary battery including a charge current detection circuit detecting a charge current output from a charging transistor, and generating a signal including the charge current information; a voltage comparison circuit comparing... | 03/02/2010 |
| 7656122 | Method for calculating power capability of battery packs using advanced cell model predictive techniques The present invention relates to a method and an apparatus for estimating discharge and charge power of battery applications, including battery packs used in Hybrid Electric Vehicles (HEV) and Electric Vehicles (EV). One charge/discharge power estimating method inco... | 02/02/2010 |
