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9035621 Method and circuitry to calculate the state of charge of a battery/cell  
The present inventions, in one aspect, are directed to techniques and/or circuitry to adapt the charging of a battery using data which is representative of an overpotential or relaxation time...
8994336 Portable alternating current inverter having reduced impedance losses  
A portable power supply apparatus is provided having reduced impedance losses. The portable power supply apparatus is comprised of: a portable housing; a battery system residing in the housing;...
8981730 Switching device for electric vehicle and method of controlling the switching device  
Provided are a switching device for an electric vehicle and a method of controlling the switching device. The switching device includes a switch, a signal selection part, an inverter, and a...
8975874 Method and circuitry to adaptively charge a battery/cell  
The present inventions, in one aspect, are directed to techniques and/or circuitry to adaptively charge a battery/cell using data which is representative of a change in terminal voltage of the...
8970178 Method and circuitry to calculate the state of charge of a battery/cell  
The present inventions, in one aspect, are directed to techniques and/or circuitry to applying a current pulse to the terminals of the battery during a charge, measuring a voltage at the terminals...
8963505 Method and apparatus for charging batteries  
A charge system is disclosed. A charge system includes a switching device and a controller. The switching device performs switching of a DC input voltage at a predetermined switching frequency to...
8947054 Battery charger and method utilizing alternating DC charging current  
A battery charger is disclosed for use with various batteries, such as automotive and marine-type batteries. In accordance with an aspect of the invention, the charging current is alternated...
8917063 Battery pulse charging method and apparatus  
Disclosed herein are some embodiments for safely charging a mobile system battery pack, even when the power source (e.g., adapter) voltage is at a relatively high level that would otherwise result...
8907631 Adaptive charging technique and circuitry for a battery/cell using multiple charge circuits and temperature data  
A system to recharge a battery including a first current-voltage source to generate a first signal, a second current-voltage source to generate a second signal, a first inductor-capacitor circuit...
8890486 Method and apparatus for charging a battery  
A method and apparatus for charging a battery is provided. The apparatus includes: a constant current circuit, a constant voltage circuit and a control circuit. The control circuit is adapted to...
8836289 Combination charger and motive power device  
A combined battery charger and motor driver circuit assembly includes a rechargeable battery, a traction motor configured to accept a pulse-width-modulated (PWM) drive, a PNP transistor array, a...
8791669 Method and circuitry to calculate the state of charge of a battery/cell  
The present inventions, in one aspect, are directed to techniques and/or circuitry to determine the state of charge of a battery/cell using data which is representative of a partial relaxation...
8779727 Charge control device and load driving device  
A charge control device includes a charge control circuit to control a charge of a secondary battery by controlling an output stage connected between a power supply and the secondary battery. The...
8773077 Controllers for battery chargers and battery chargers therefrom  
A controller for a battery charger that includes a power converter has parametric sensors for providing a sensed Vin signal, a sensed Vout signal and a sensed Iout signal. A battery current...
8754613 Charging device, electronic equipment including same, and control method of charging device  
A charging device to charge a secondary battery that includes a DC/DC circuit to generate a charging current supplied to the secondary battery, an impedance measurement circuit to measure an...
8638070 Method and circuitry to adaptively charge a battery/cell  
The present inventions, in one aspect, are directed to techniques and/or circuitry to adaptively charge a battery/cell using data which is representative of a change in terminal voltage of the...
8618767 Charging control apparatus for vehicle and vehicle  
A switch of a connecting circuit is connected between a signal line branched from an input terminal for a pilot signal in a charging inlet and a ground line connected to a vehicle earth, and is...
8598845 Battery chargers, electrical systems, and rechargeable battery charging methods  
Battery chargers, electrical systems, and rechargeable battery charging methods are described. According to one aspect, a battery charger includes charge circuitry configured to apply a plurality...
8552692 Charger and discharger for secondary battery  
A charger and discharger for a secondary battery includes a secondary battery coupled to an output stage of the charger and discharger, a first converter circuit including a first pulse voltage...
8531060 Portable electronic device and adapter thereof  
A portable electronic device is provided. The portable electronic device includes a system end and an adapter. The system end provides a trigger signal. The adapter converts an input AC voltage...
8513921 Method and circuitry to adaptively charge a battery/cell  
The present inventions, in one aspect, are directed to techniques and/or circuitry to adapt the charging of a battery/cell using data which is representative of an overpotential of the...
8497659 Video game controller charging system  
A video game controller charging system for charging at least one video game controller is provided. The system includes a controller adapter including a battery unit, at least one first induction...
8493033 Method and apparatus for battery-backed power supply and battery charging  
Apparatuses, systems, and methods for providing battery-backed power to movable partitions are disclosed. A power converter generates a DC output from an AC input. The DC output may be selectively...
8446129 Digital flash charger controller  
A digital flash charger controller includes a transformer, a power supply element, and an application-specific integrated circuit (ASIC). A secondary side of the transformer is electrically...
8436583 Multiple cell battery charger configured with a parallel topology  
A multiple cell battery charger configured with a parallel topography is disclosed. In accordance with an important aspect of the invention, the multiple cell battery charger requires fewer active...
8384356 Self contained power source  
A self-contained power source to charge a battery and/or power a load is provided. The power source does not utilize a connection to an external power supply, such as AC mains and/or an AC to DC...
8310202 Off-resonance frequency operation for power transfer in a loosely coupled air core transformer  
A power transmission system includes a loosely coupled air core transformer having a resonance frequency determined by a product of inductance and capacitance of a primary circuit including a...
8310204 Automatic charge equalization method and apparatus for series connected battery string  
The present invention relates to an automatic charge equalization apparatus and method having an automatic PWM generating means for a series-connected battery string. The automatic charge...
8310209 Battery charger and method for charging a battery  
The present invention relates to a battery charger for charging a battery (10), said battery charger comprising an AC/DC power supply means (1), a pulse width modulation controlled DC/DC converter...
8305045 Charge control circuit, battery pack, and charging system  
A charge control circuit having a charge controller, a voltage detector, and a current detector is provided. The charge controller repeats the constant current constant voltage charge a plurality...
8288996 Apparatus for estimating state of charge of rechargeable battery charged by vehicle-mounted power generation apparatus  
The apparatus is for estimating a state of charge of a rechargeable battery charged by a vehicle-mounted power generation apparatus capable of generating a variable output voltage. The estimating...
8283980 Amplifier circuit  
An amplifier circuit includes an amplifier unit and a current control circuit as means for achieving the aforementioned object. The amplifier unit includes a gain compensation MOS transistor...
8283896 Method and system for charging and discharging high-voltage energy storage devices  
An energy storage device includes buck and boost switches that charge and discharge a charge storage element (e.g. a supercapacitor or ultracapacitor) over a broad voltage range. Integrated charge...
8269465 Battery charging circuit generating an oscillating triangular waveform to remove sulphate from battery plates  
A circuit charges and maintains a battery. The circuit includes a microprocessor for receiving a current sense signal and a voltage sense signal. The microprocessor generates control signals for...
8269466 Method for charging a battery including an oscillating triangular waveform to remove sulphate from battery plates  
A method for charging a battery includes measuring the battery's voltage and comparing the battery voltage to a first threshold voltage. The method includes operating the battery in a charging...
8264207 Method and system for pulse charging an automotive battery  
A pulse charging profile for a vehicle battery is synchronized with driver or vehicle demanded current disturbances by phase tracking the fundamental frequency of the desired pulse charging...
8237412 Battery charger and method utilizing alternating DC charging current  
A battery charger is disclosed for use with various batteries, such as automotive and marine-type batteries. In accordance with an aspect of the invention, the charging current is alternated...
8222869 System and method for battery charging  
A charging circuit includes a pulse generator and a controller coupled to the pulse generator. The pulse generator is used to generate a plurality of pulses to control a charging switch. The...
8193777 Non-aqueous electrolyte secondary battery charging method, electronic device, battery pack, and charging device  
The present invention aims to quickly charge a non-aqueous electrolyte secondary battery including a heat-resistant layer between a negative electrode and a positive electrode. A method according...
8188703 Energy harvesting system  
An energy harvesting system includes: an energy harvesting unit for converting energy from a natural energy source into an electrical power signal; a power point tracking unit including a current...
8179100 Battery charger using the phase shift by a pair of forward converting circuits  
A technique for dynamically adjusting an output voltage of forward converter circuits for a battery charging operation is provided. The technique allows for varying voltage at the charging battery...
8169194 System and method for applying pulsation energy to online battery backup systems  
A method of applying pulsation energy to an online battery backup system including the steps of (1) sampling at least one voltage sampling circuit to monitor a float voltage drop across the...
8169193 Charge injection discharge circuit  
A circuit for dissipating injected parasitic charge includes a circuit stage, a pulse generating circuit and a switch. The circuit stage has an input node and an output node that injects a...
8169184 Self-adaptable recharger  
A self-adaptable recharger includes a control circuit connected to a power-supply circuit, a current-sampling circuit and a pulse-based recharge circuit. The control circuit includes a...
8148949 Use of high frequency transformer to charge HEV batteries  
A system for charging a high voltage battery includes a low DC voltage battery, a DC-to-AC converting circuit, a controller, an AC-to-DC converting circuit and a high DC voltage battery. The low...
8148940 Multifunctional vehicle charger and charging process of the same  
The present invention relates to a multi-functional vehicle charger and the charging process of the same. The vehicle charger includes an enclosure defining the vehicle charger. The enclosure...
8143845 Cable voltage drop compensation for battery chargers  
A battery charger may be configured to charge a battery by way of a charging cable. A DC gain of a voltage control loop of the battery charger may be limited to a predetermined value to compensate...
8143863 Circuits and methods for controlling a current flowing through a battery  
A circuit for controlling a current flowing through a battery includes a driver and a filter coupled to the driver. The driver can generate a pulse signal in a first operating mode and generate a...
8134342 Method for pulsed charging of a battery in an autonomous system comprising a supercapacitance  
The autonomous system comprises an intermittent power source delivering a direct current. A supercapacitance is connected in parallel with the battery and the power source respectively via a first...
8129954 System and method for charging and pulsating batteries  
A battery charging and pulsating system including a battery having a positive terminal and a negative terminal, a charger electrically connected to the positive and the negative terminals of the...
Matches 1 - 50 out of 176 1 2 3 4 >