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| Number | Title | Issue Date |
| 8035344 | Battery system including two or more unit cells electrically connected in series A battery system capable of inhibiting a reverse voltage applied to a unit cell that has lost the electromotive force without active control is provided. The battery system include two or more unit cells electrically connected in series, and a rectification section ... | 10/11/2011 |
| 8022669 | Battery management system A battery management system can include a battery having a plurality of cells, a plurality of devices coupled to the battery, and a control unit coupled to a first device of the devices. The devices can assess the statuses of the cells. The control unit can communic... | 09/20/2011 |
| 7973514 | Battery cell balancing systems using current regulators According to one embodiment of the invention, there is provided a cell balancing circuit used for balancing a cell. The cell balancing circuit includes a bypass path coupled to the cell, a current regulator coupled to the bypass path, and a bleeding control switch. ... | 07/05/2011 |
| 7880435 | Multi-battery charger with individual battery bypass control The present invention discloses a battery charger and a method for charging a plurality of batteries. The battery charger includes: a current source for supplying a source current which has a charge current portion and a diverted current portion; bypass sections; vo... | 02/01/2011 |
| 7872447 | Electrical storage apparatus for use in auxiliary power supply supplying electric power from electric storage device upon voltage drop of main power supply In an electrical storage apparatus including an electric storage device connected between a main power supply and a load, a first bypass FET and a bypass diode which are connected in series between the main power supply and the load are provided, and first and secon... | 01/18/2011 |
| 7863863 | Multi-cell battery pack charge balance circuit A multi-cell battery pack charge balance circuit is connected to a recharge-discharge circuit to charge battery cells. The charge balance circuit includes a first balance circuit, a second balance circuit and a protection circuit. The first balance circuit is connec... | 01/04/2011 |
| 7825629 | Method and system for cell equalization with charging sources and shunt regulators A system and method for charging a rechargeable, or secondary, battery including a series string of cells, includes a topology of charging sources that selectively provides charging current to cells that need to be charged, but avoids overcharging cells that are alr... | 11/02/2010 |
| RE41676 | Intelligent serial battery charger and charging block A serial battery charger including a number of serially connected battery charging sections in which the battery charging section is characterized by a first and second parallelly connected branches. The first branch includes terminals for connecting to the battery ... | 09/14/2010 |
| 7741811 | Capacitor charging control circuit A parallel monitor circuit having a simple circuit configuration, in which a voltage divider circuit can be formed with resistors having the same resistance value, includes plural capacitors are connected in series, and a bypass device of each of parallel monitor ci... | 06/22/2010 |
| 7683575 | Method and apparatus for identifying and disconnecting short-circuited battery cells within a battery pack A method and apparatus for deactivating a bad battery cell from a battery pack for an energy storage system of an electric vehicle is disclosed. The apparatus and methodology includes a clamshell member arranged at an end of the cells and a printed circuit board arr... | 03/23/2010 |
| 7626359 | Apparatus and method for charging and discharging serially-connected batteries An apparatus is provided that includes a plurality of serially-connected bypass circuits, a measurement/control element and a plurality of safety circuits. The bypass circuits are electrically connectable in parallel with a plurality of serially-connected batteries,... | 12/01/2009 |
| 7573235 | Battery charger and power reduction system and method The present invention is a shunt-type, battery-charging device that (through the use of a power dissipation and/or power reduction system and/or method) is designed to reduce the likelihood of overcharging and the possible deleterious effects (and cooling requiremen... | 08/11/2009 |
| 7557539 | Charging device A charging device including an assembled battery having plural secondary batteries serially connected, a charge power source unit which supplies charging current to both ends of said assembled battery having plural secondary batteries serially connected, and plural ... | 07/07/2009 |
| 7417408 | Method and arrangement for charging capacitors of direct-voltage intermediate circuit of frequency converter A method and an arrangement for charging capacitors of a direct-voltage intermediate circuit of a frequency converter. The arrangement comprises a charging circuit (CCA) comprising a first diode (D1) and a second diode (D2) connected in series with the... | 08/26/2008 |
| 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 |
| 7358702 | Storage battery with auxiliary terminals There is provided a storage battery for supplying power to an engine starting circuit and plural electrical parts and accessories, which is structured to prevent all the cords for various circuits and the like from being jammed to a single pair of terminals of the s... | 04/15/2008 |
| 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 |
| 7352155 | Apparatus and method for detecting battery pack voltage An apparatus and method for detecting battery pack voltage is disclosed. The voltage detection apparatus includes a plurality of selectors for providing a cell voltage of a predetermined cell, a detector buffer for receiving the cell voltage of the predetermined cel... | 04/01/2008 |
| 7348760 | Power management topologies A wake up circuit according to one embodiment includes a comparison circuit and an output decision circuit. The comparison circuit may be adapted to receive a first signal representative of a charging current level provided to a battery via a path and a second signa... | 03/25/2008 |
| 7345455 | Staggered backup battery charging system A battery backup system includes a control device including a power sensing device, a discharge circuit, a charging circuit, and a plurality of battery packs. A lower threshold is established representative of a minimum acceptable effective energy capacity. Each bat... | 03/18/2008 |
| 7342768 | Active balancing modular circuits Provided are active balancing modules that control voltage imbalances between capacitors stacked in a series arrangement and methods for their manufacture. These modules are simple and inexpensive to manufacture, and versatile. They may be used alone or they may be ... | 03/11/2008 |
| 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 |
| 7312596 | Device and method for equalising the charge of serially connected capacitors belonging to a double layer capacitor A device and a method are provided for equalizing the charge of the capacitors belonging to a double layer capacitor. The device includes an individual transformer associated with each individual capacitor and a flyback transformer or a spool, from which the energy ... | 12/25/2007 |
| 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 |
| 7288919 | Voltage balance circuit, voltage detective circuit, voltage balancing method, and voltage detecting method When a control section (39) turns on a switch (31, 33, 35), a capacitor (37) is connected to a secondary battery (B1) in parallel. Accordingly, voltage between both ends of each capacitor (37, 38) reaches voltage between both polar... | 10/30/2007 |
| 7287380 | Heat system utilizing solar energy A heat system utilizing solar energy is disclosed herein, which includes at least one solar panel, an energy control unit, a temperature control device, at least one heat-radiating element, and at least one storage cell. The solar panel collects solar energy and tra... | 10/30/2007 |
| 7285959 | Battery housing and battery analyzer An electrical source analyzer is claimed and disclosed with a circuit for a quick test of voltages using LEDs to indicate the voltage range, a circuit for measuring voltage using a meter with a display, a circuit for measuring current, as applied across a load with ... | 10/23/2007 |
| 7275501 | System and method using capacitors to power an automatic feeder system A method and apparatus relates to systems powered by energy stored in capacitors. The capacitors may be charged using any desired power source. The system does not require batteries, which increases the reliability and life span of the system. In one example, an aut... | 10/02/2007 |
| 7268517 | Method and system for energy reclamation and reuse The present invention relates to a system and method for harvesting ambient electromagnetic energy, and more particularly, to the integration of antennas and electronics for harvesting ubiquitous radio frequency (RF) energy, transforming such electromagnetic energy ... | 09/11/2007 |
| 7253586 | Intelligent multiple battery charging station A method for charging at least one battery, includes: determining a status of at least one parameter for the battery, where the at least one parameter comprises a closeness to a desired charge level; determining that the battery is to be charged during a peak usage ... | 08/07/2007 |
| 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 |
| 7211987 | Electric device with intelligent battery system therein A computer provided with an intelligent battery 52 for charging/discharging, the intelligent battery 52 supplying power to a main system unit, wherein the intelligent battery 52 includes: a voltage measuring circuit 70 for measuring a bat... | 05/01/2007 |
| 7204862 | Packaged thin film batteries and methods of packaging thin film batteries A packaged battery (10) and method of producing such is provided having a thin film lithium battery cell (11) sealably encased within a packaging layer (12). The battery cell (11) includes a substrate (13), an anode (16), an... | 04/17/2007 |
| 7206705 | Method and apparatus for balancing capacitors in a capacitor bank A method and apparatus are for balancing capacitors in a capacitor bank. Three voltage levels are produced by a reference voltage source, to monitor the state of charge of the capacitors. The capacitor voltage on each capacitor is determined and is compared with the... | 04/17/2007 |
| 7196493 | Closed loop control of battery power limits based on voltage A controller and a control method for modifying battery discharge and charge power limits in a vehicle powertrain that includes an electric battery as a power source. The modification compensates for inaccurate estimates of battery discharge and charge power limits ... | 03/27/2007 |
| 7195840 | Cell structure for electrochemical devices and method of making same An electrochemical device comprising alternating layers of positive and negative electrodes separated from each other by separator layers. The electrode layers extend beyond the periphery of the separator layers providing superior contact between the electrodes and ... | 03/27/2007 |
| 7193393 | Approach for charging multiple batteries According to an example embodiment, an arrangement charges equipment batteries, for example, while the equipment is being towed by a towing vehicle. In this example application, the towing vehicle has a primary battery and a rearward-located hitch for towing a trail... | 03/20/2007 |
