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| Number | Title | Issue Date |
| 8159195 | Overvoltage protection circuit for use in charger circuit system and charge circuit with overvoltage protection function The present invention discloses an overvoltage protection (OVP) circuit for use in a charger circuit system, comprising: a power transistor electrically connected between a voltage supply and a battery; an OVP circuit which turns off the transistor when a voltage su... | 04/17/2012 |
| 8143864 | Battery charger with overvoltage protection circuitry A battery charger with an overvoltage protection circuitry is electrically coupled to a power source and a battery. The battery charger with the overvoltage protection circuitry includes a switching circuit. The switching circuit comprises a first switching element,... | 03/27/2012 |
| 8098053 | Charger for lithium ion secondary battery, and method of charging the same A charger for a lithium ion secondary battery includes a series circuit of a reverse-current preventive switch, a charging switch and a current-detecting resistor, connected between the battery and the ground a charging control circuit controlling the reverse-curren... | 01/17/2012 |
| 7923971 | Non-contact electric power transmission apparatus The object is to provide a safe non-contact electric power transmission apparatus reducing unnecessarily consumed electric power, while intermittently-operated or otherwise restrained electric power transmission is not performed, and heat is not generated when a met... | 04/12/2011 |
| 7843173 | Charger and method of charging A charger includes input terminals whereto positive and negative voltages from a power source unit are applied, output terminals generating an output charging a secondary battery, upon being applied with the voltage from the input terminals via positive and negative... | 11/30/2010 |
| 7759905 | Linear battery charger A linear battery chargers is disclosed which comprises a current generator, a current detector, an operational amplifier, and a multiplexing device. The current generator provides current to charge a battery module, and the current is detected and transformed to a d... | 07/20/2010 |
| 7683584 | Power source switching apparatus and method thereof A power source switching apparatus is provided. The example power source switching apparatus may include a voltage adjuster outputting a first power source voltage having a voltage level, corresponding to the output voltage of a battery, during an external power sou... | 03/23/2010 |
| 7550951 | Two-step battery charger A two-step charger includes an AC/DC power supply, a transformer, a compensator, a controller, a comparator and an isolating controller. The comparator detects whether a battery is connected to the transformer. If so, a command voltage of the charger is set at a hig... | 06/23/2009 |
| 7545121 | Auxiliary vehicle power supply A multiple-battery charging system for enabling a vehicle with an internal-combustion engine or hybrid engine to be equipped with a plurality of electric storage batteries. The multiple-battery charging system automatically connects batteries to load, at times alter... | 06/09/2009 |
| 7528581 | Battery apparatus for controlling plural batteries and control method of plural batteries Lower order control devices control plural battery cells configuring plural battery modules. An input terminal of the low order control device in the highest potential, an output terminal of the low order control device in the lowest potential, and a high order cont... | 05/05/2009 |
| 7408326 | Battery pack system interface with multiple mode control states A system interface having an interface for dual battery packs provides for power up sequencing of battery packs and pack switching under the control of a host processor within associated system electronics. The host processor communicates with each battery pack via ... | 08/05/2008 |
| 7405539 | Battery charger for preventing charging currents from overshooting during mode transition and method thereof The present invention provides a battery charger and a method for preventing an overshoot charging current during a mode transition. The battery charger includes a charging regulation circuit for outputting a charging current whose amount is regulated based on a reg... | 07/29/2008 |
| 7391183 | System for controlling charging of secondary battery To provide a system for controlling the charging of a secondary battery (battery), which is capable of keeping an initial charging/discharging characteristic of the battery in consideration of a change in environmental temperature and deterioration of the battery wi... | 06/24/2008 |
| 7378819 | Systems and methods for regulating pulsed pre-charge current in a battery system Systems and methods for regulating pre-charge current in a battery system, such as a battery system of an information handling system, by controlling duty cycle of the charging current provided to battery cell/s of the battery system. ... | 05/27/2008 |
| 7372234 | Charge control device and battery pack employing it A battery pack employing a charge control device of the present invention includes a charge detection circuit for checking whether a secondary cell is in a charged state or not based on at least a charge voltage or a charge current of the secondary cell, a control c... | 05/13/2008 |
| 7369387 | Apparatus and method for temperature-dependent transient blocking An apparatus and method for temperature-dependent transient blocking employing a transient blocking unit (TBU) that uses at least one depletion mode n-channel device interconnected with at least one depletion mode p-channel device. The interconnection is performed s... | 05/06/2008 |
| 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 |
| 7342433 | Apparatus and method for enhanced transient blocking An apparatus and method for enhanced transient blocking employing a transient blocking unit (TBU) that uses at least one depletion mode n-channel device interconnected with at least one depletion mode p-channel device. The interconnection is performed such that a tr... | 03/11/2008 |
| 7339347 | Apparatus and method for reliably supplying electrical energy to an electrical system The instant invention is directed to a multiple battery system and auxiliary battery attachment system. The invention provides a battery housing having a common positive terminal and a common negative terminal coupled to an electrical system. A main battery having a... | 03/04/2008 |
| 7336522 | Apparatus and method to reduce undesirable effects caused by a fault in a memory device A method and apparatus is provided for reducing the current in a memory device. Peripheral device control signals are translated to the wordline off voltage level, such as a negative wordline voltage. The translated signals prevent the peripheral devices from conduc... | 02/26/2008 |
| 7327544 | Battery protection device A battery protection structure is described. The structure provides battery overcharging protection while allowing for minimal battery voltage drop during normal battery operation. One resistance element sets voltage drop during normal operation, and the sum of two ... | 02/05/2008 |
| 7316621 | Police baton A handheld device for incapacitating dangerous suspects without endangering nearby civilians. The user holds the handgrip which has a trigger connected to a source of thrust, such as an air cartridge. When the user pulls the trigger, the air cartridge is fired and e... | 01/08/2008 |
| 7312653 | NMOS reverse battery protection A reverse polarity protected system comprises a voltage source that includes positive and negative terminals. A polarity-sensitive device has a first terminal that communicates with the positive terminal of the voltage source, and that includes a second terminal. A ... | 12/25/2007 |
| 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 |
| 7274170 | Battery pack control module A battery pack control module for balancing a plurality of cells or groups of cells connected in series includes a controller assembly, a disconnect circuit, a pack sensing circuit, a balancing circuit, and computer instructions for instructing the controller assemb... | 09/25/2007 |
| 7221064 | Power circuit for battery A power circuit for a battery for, even when an idle-stop operation is continuously performed, preventing reduction of an electric power supplied to a motor at start-up to obtain a set engine rpm. The power circuit includes a series-connected power supply in which a... | 05/22/2007 |
| 7215096 | Battery pack with charge control function A battery pack with a charge control function includes a charge protection circuit and a charge control circuit. The charge control circuit turns a discharge control switch on or off to control a discharge current which flows from a secondary battery to a load and a... | 05/08/2007 |
| 7204623 | Bicycle lighting device A bicycle lighting device is configured to make possible the efficient illumination of an LED while controlling power loss between the generator and the LED. An LED unit has at least one LED. A protector circuit controls the flow of current to each LED according to ... | 04/17/2007 |
| 7205747 | System and method for monitoring a charging period in a battery charger An apparatus and method for disabling a charging counter circuitry within a battery charger is disclosed. The apparatus includes circuitry connected to a pin associated with the charging counter circuitry of the battery charger, said circuitry receiving a signal fro... | 04/17/2007 |
| 7205731 | Control of vehicle motor A motor control device for controlling an electric motor (1,6) installed in a vehicle, is disclosed. The motor has a field winding (101,601). The motor control device has a battery (4) charged by power at a first voltage (Vb), an voltage increas... | 04/17/2007 |
| 7190133 | Energy storage system and method for hybrid propulsion A hybrid propulsion system. The system comprises one or more hybrid propulsion traction drives having an electric motor operable to produce mechanical power for propulsion. A hybrid propulsion traction drive is operable to receive power from an on-board power genera... | 03/13/2007 |
| 7166942 | Magneto-generator A magneto-generator includes: a plurality of magnets disposed being bonded to an inner circumferential surface of a flywheel; and a magneto coil that is disposed in the flywheel being opposed to the magnets and coaxial with the flywheel, and that generates an electr... | 01/23/2007 |
| 7106027 | Battery changers Battery pack (50) may include rechargeable batteries (55) and first temperature sensor TM1 for detecting the temperature of batteries (55). Battery charger (10) may include power source circuit (32) for supplying charging cu... | 09/12/2006 |
| 7075306 | Power control unit A power control apparatus for controlling charging and discharging of a plurality of storage means devices has a voltage measuring arrangement for measuring voltages of each of the storage devices, a current measuring arrangement for measuring currents flowing throu... | 07/11/2006 |
| 7053504 | Switching system to make energy available to electric consumers of different energy requirement A switching system, preferably for use in the power supply of motor vehicles, and having one chargeable energy memory of a specific voltage level and consumers situated in the circuit of the energy memory is further developed so that a significant power load is thor... | 05/30/2006 |
| 7039534 | Charging monitoring systems An electronic system for the continuous monitoring of voltage charge within the electrical system of a motor vehicle having an electrical generation source and a secondary electrochemical cell or battery. The system comprises a programmable in-vehicle monitor having... | 05/02/2006 |
| 6979977 | Power controller for a vehicle A power controller for a vehicle controls the supply of power to an electrical load when the vehicle's engine is stopped or a key switch is turned off, so as to prevent lowering of the remaining capacity of a main battery. The control system has a control portion wh... | 12/27/2005 |
| 6958591 | Battery charging safety circuit for simultaneous startup and rapid surge current clamping A safety circuit monitors a charging signal supplied by a charging circuit for charging a battery. Damage to the battery may occur when the voltage at the input terminal of the battery rises above the safe level for the battery. A voltage drop across a coupling circ... | 10/25/2005 |
| 6949902 | Controller of rotating electric machine for vehicle A controller of a rotating electric machine for a vehicle has a magnetic field electric current command arithmetic device for commanding a magnetic field electric current by the command of a torque and electric power command arithmetic device, an electric power conv... | 09/27/2005 |
| 6914456 | Sub-micron high input voltage tolerant input output (I/O) circuit A method of providing bias voltages for input output connections on low voltage integrated circuits. As integrated circuit voltages drop generally so does the external voltages that those circuits can handle. By placing input and output devices, in series, external ... | 07/05/2005 |
