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| Number | Title | Issue Date |
| 8076906 | Battery system configured to survive failure of one or more batteries The battery system includes a battery pack having a plurality of power sources arranged in parallel groups that are connected in series. Each parallel group includes a plurality of power sources connected in parallel. Each power source includes a battery. The system... | 12/13/2011 |
| 8030900 | Circuits and methods for controlling power in a battery operated system Embodiments of the present invention include systems and methods of controlling power in battery operated systems. In one embodiment, the present invention includes a switching regulator for boosting voltage on a depleted battery to power up a system. The system may... | 10/04/2011 |
| 8026697 | Multi-mode power management unit with shared inductor According to one exemplary embodiment, a multi-mode power management unit (PMU) includes a number of switchable conductive paths, where each of the switchable conductive paths corresponds to at least one of a number of power modes. The multi-mode PMU further include... | 09/27/2011 |
| 7932700 | Battery with integrated voltage converter A battery that includes an electrochemical cell having an internal bore therethrough is described herein. The battery also includes a voltage converter module electrically coupled to the electrochemical cell and disposed within a portion of the internal bore The vol... | 04/26/2011 |
| 7898220 | Rapid charge lithium ion battery charger A rapid charging circuit for a lithium ion battery. The battery charger in accordance with the present invention compensates for the voltage drops across the various resistance elements in the battery circuit by setting the charging voltage to a level to compensate ... | 03/01/2011 |
| 7834589 | Apparatus and method for bucking voltage of battery pack An apparatus and method for discharging a voltage in a battery pack. The apparatus includes a discharge resistance connected to a discharge target battery of plural batteries in the battery pack and discharging a voltage of the discharge target battery, a switching ... | 11/16/2010 |
| 7825632 | Rechargeable battery assembly and power system using same A rechargeable battery, battery set or battery pack having a circuit or a plurality of circuits for providing self-discharging thereof electrically connected in parallel are used to form rechargeable battery assemblies and electric power supply systems for use in el... | 11/02/2010 |
| 7782018 | Adaptive current limiting for any power source with output equivalent series resistance Adaptive current limiting for any power source to limit power drain of one load on the power source to maintain a minimum power source voltage for proper operation of other loads on the power source. For battery applications, such as for flash systems, the invention... | 08/24/2010 |
| 7768237 | Simplified automatic discharge function for vehicles Methods and system are disclosed for an automatic discharge function for a vehicle having an electric or hybrid electric motor. The methods and system monitor the motor for occurrence of a power shutdown. If the power shutdown occurs, a contactor pair is opened, and... | 08/03/2010 |
| 7719234 | Methods of discharge control for a battery pack of a cordless power tool system, a cordless power tool system and battery pack adapted to provide over-discharge protection and discharge control In a cordless power tool system, a battery pack which may removably attachable to a cordless power tool and to a charger may include at least one battery cell and a power limiting device. The power limiting device may be arranged in series with the at least one batt... | 05/18/2010 |
| 7692406 | Battery-charger device with improved stability A circuit is provided for controlling a battery-charger device with a closed-loop architecture. The circuit includes sensing means for sensing an operative quantity of the device, control means, and driving means. The control means alternately controls the sensing m... | 04/06/2010 |
| 7688035 | Apparatus and method for conserving battery charge A portable device includes a battery, electronic circuitry, and a peak current provider that provides a peak current to the electronic circuitry. Power is supplied to the portable device by connecting a battery to a peak current provider, charging the peak current p... | 03/30/2010 |
| 7626362 | Rapid charge lithium ion battery charger A rapid charging circuit for a lithium ion battery. The battery charger in accordance with the present invention compensates for the voltage drops across the various resistance elements in the battery circuit by setting the charging voltage to a level to compensate ... | 12/01/2009 |
| 7598709 | Rapid charge lithium ion battery charger A rapid charging circuit for a lithium ion battery. The battery charger in accordance with the present invention compensates for the voltage drops across the various resistance elements in the battery circuit by setting the charging voltage to a level to compensate ... | 10/06/2009 |
| 7508170 | Device and method for controlling input to a rechargeable battery A controller for a rechargeable battery that improves the recovering efficiency of the energy used to charge the rechargeable battery and prevents the life of the rechargeable battery from being shortened by overcharging. The controller includes a voltage measuremen... | 03/24/2009 |
| 7489109 | Integrated battery charger and system regulator circuit An integrated regulator and charging system including a DC/DC converter, a P-channel device, a battery system and a system/charger controller. The DC/DC converter converts an input voltage to a regulated voltage on a system bus. The battery system includes a recharg... | 02/10/2009 |
| 7489110 | Selector circuit for power management in multiple battery systems A selector circuit configured to select among a DC power source and a plurality of batteries for an electronic device. The selector circuit is responsive to an output signal from an associated power management unit. The selector circuit is further configured to perm... | 02/10/2009 |
| 7459886 | Combined LDO regulator and battery charger A method and circuit for simultaneously charging a battery and providing supply voltage to a load. The circuit includes a low-drop-out voltage (LDO) regulator and a constant-current, constant-voltage (CC-CV) regulator. In one embodiment, CC-CV regulator provides a c... | 12/02/2008 |
| 7443140 | Method and apparatus for operating a battery to avoid damage and maximize use of battery capacity by terminating battery discharge A method for terminating battery discharge to avoid battery damage and maximize battery usage includes the steps of: (a) determining battery capacity; (b) storing a capacity result of the capacity determining; (c) determining battery voltage; (d) during a monitored ... | 10/28/2008 |
| 7408325 | Battery charging method A battery charging method that detects the voltage of each series-connected battery, discharges batteries with voltage exceeding a prescribed voltage, and charges a plurality of batteries while maintaining cell balance. This charging method detects the voltage of ea... | 08/05/2008 |
| 7399321 | Soldering method of nonaqueous-electrolyte secondary-battery In a method of reflow soldering, a non-aqueous electrolyte secondary battery is discharged to a first discharge voltage different from a second discharge voltage at an inflection point in a discharge curve of the non-aqueous electrolyte secondary battery having an a... | 07/15/2008 |
| 7395875 | Rechargeable battery-operated hand machine tool The invention is based on a rechargeable battery-operated hand machine tool (10) having an electric drive motor (18) accommodated in a housing (12) and powered by a rechargeable battery (20), which motor is used to drive a tool (16... | 07/08/2008 |
| 7369382 | Integrated circuit with an undervoltage detector An integrated circuit arrangement includes connection terminals, an undervoltage detector, and at least one circuit unit. The connection terminals are configured to receive a supply voltage. The undervoltage detector is coupled between the connection terminals and i... | 05/06/2008 |
| 7365952 | Battery pack having a protection circuit The battery pack according to the present invention is to avoid any trouble or the like of the primary or secondary battery inside the battery pack with a simple mechanical construction when a load is intermittently connected between the external terminals of the ba... | 04/29/2008 |
| 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 |
| 7362075 | Battery charger with charge state detection on the primary side The present invention relates to a battery charger for charging a battery. The present invention especially relates to a battery charger comprising a switching power supply controlled on the primary side and a charge monitoring circuit for monitoring the charge stat... | 04/22/2008 |
| 7358701 | Method and system for modeling energy transfer A method and system for modeling or simulating an application environment so as to evaluate the effect of a selected battery and charger in the application environment. Sensors are used to gather data regarding the energy consumption needs of the application environ... | 04/15/2008 |
| 7345454 | Energy storage system An energy storage system is described for use in, for example, electronics systems such as a bank of computers. The disclosed energy storage systems allows the use of an efficient energy source, such as ultracapacitors, while providing a desired voltage level for an... | 03/18/2008 |
| 7339352 | Battery pack malfunction detection apparatus and battery pack malfunction detection method A malfunction detection circuit that detects a cell malfunction alternately outputs the results of an overcharge detection executed during an overcharge detection period and the results of an over-discharge detection executed during an over-discharge detection perio... | 03/04/2008 |
| 7337339 | Multi-level power monitoring, filtering and throttling at local blocks and globally Power management for a multi-processor chip includes a centralized global power manager that monitors global power for the whole chip, and local power managers. Local power managers manage power for local blocks such as processor cores, caches, and memory controller... | 02/26/2008 |
| 7336081 | Cell evaluation device including short circuit detector A cell evaluation device has a short circuit detection portion to detect an internal short circuit within a test cell that has been subjected to nail penetration or crushing using the pressure from a pressurization portion, a pressure control portion to halt the ope... | 02/26/2008 |
| 7337001 | Implantable medical device and method with a dual power source incorporating electrolyte additive 2,2,2-trifluoroacetamide An implantable medical device includes a control circuit for controlling the operation of the device and for obtaining physiological data from a patient in which the medical device is implanted. The implanted device also includes a communication circuit for transmit... | 02/26/2008 |
| 7330013 | Apparatus and method for charging and discharging a battery A method and apparatus for controlling the charge and discharge currents in a battery (2) as a function of temperature. When a battery (2) is charged or discharged in an environment that approaches its design operating temperature extreme, the currents... | 02/12/2008 |
| 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 |
| 7315148 | Method and apparatus for conserving battery for operation of a low intensity optical communication probe An optical communication probe enables a diagnostic tool to optically communicate with an external device, such as an appliance, through a low intensity indicator light of the external device. The communication probe is powered by a battery that is selectively coupl... | 01/01/2008 |
| 7305225 | Radio signal receiver A motor vehicle entertainment system includes a radio receiver and a control unit. The control unit receives a first status signal indicative of whether or not a motor vehicle door has been unlocked and initiates the application of power to the radio receiver upon t... | 12/04/2007 |
| 7304404 | Fan system for vehicles and method for controlling fan in vehicles A fan system is provided which keeps a record of the electric connection between a battery ECU and an accessory battery and starts a fan if it is determined based on the record that the electric connection between the battery ECU and the accessory battery was just i... | 12/04/2007 |
| 7301307 | Method and apparatus to charge a battery using determination of battery load current By determining charging current Ichar and then subsequently utilising that determination of charging current Ichar in relation to battery current Ibat and load current Iload as a result of operation of a phone or other ele... | 11/27/2007 |
| 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 |
| 7276881 | Protection method, control circuit, and battery unit A protection method for preventing battery cells from over-discharging and being overcharged, a control circuit, and a battery unit are provided. In the protection method, when a set signal “1” is supplied to a set terminal, a flip-flop outputs “1”. The gate... | 10/02/2007 |
