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7626365 |
Charging system and method
The invention concerns a method ( 200 ) and system ( 100 ) for charging a battery ( 110 ). The method includes the steps of receiving ( 212 ) an input power supply signal ( 300 ), monitoring ( 216...
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7622888 |
Fuel cell-electrolyzer system controlled by a single bi-directional DC-to-DC converter
A self-contained regenerative power system includes a fuel cell operative to generate electric energy from hydrogen and oxygen, generating water as a byproduct, and an electrolyzer operative to...
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7615965 |
Power management system
A method according to one embodiment may include selecting at least one power supply, among a plurality of different power supplies, and coupling at least one available power supply to a load. The...
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7612468 |
Uninterruptible power supply device with circuit for degradation judgment of storage battery
There is herein provided an uninterruptible power supply device with a degradation judgment circuit 4 of a storage battery 2 which can perform an exact judgment, continuing the power supply to...
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7609010 |
Inverter
The present invention relates to an inverter and a method for converting direct current voltage to alternating current. The inverter comprises a first input arranged to be connected to the ordinary...
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7605563 |
Charging circuit and charger using the same
A charging circuit includes a generator, a step-down circuit for reducing an output voltage of the generator to a predetermined voltage, a current controller for controlling a charging current that...
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7598711 |
Power source switchover apparatus and method
An apparatus for switching from a first power supply to a second power supply. The embodiment may detect the charge or voltage of both the first and second power supply, and power a device from the...
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7579714 |
Uninterruptible power supply apparatus
An uninterruptible power supply apparatus, enabling to detect an interruption on a commercial power supply, with certainty, to be turned into a battery operation, but not due to a momentary...
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7560902 |
Duty cycle controller for high power factor battery charger
A duty cycle controller apparatus for producing a duty cycle signal for controlling switching of switches of a battery charger having an AC input for receiving power and an output for supplying...
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7554298 |
Charger and integrated circuit having first and second charging currents
A charger of the present invention includes a charging transistor and a charging integrated circuit. The charging transistor is series-connected with a secondary battery to supply a charging...
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7508171 |
Protection methods, protection circuits and protective devices for secondary batteries, a power tool, charger and battery pack adapted to provide protection against fault conditions in the battery pack
In a cordless power tool system, protection methods, circuits and devices are provided to protect against fault conditions within a battery pack that is operatively attached to a power tool or...
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7498768 |
Key for a vehicle
A key ( 1, 40 ) for a vehicle ( 10, 50 ), in which the key ( 1, 40 ) includes a battery ( 21 ) to store electrical power further comprises a generator ( 23 ) to convert mechanical energy to...
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7474079 |
Battery charger with backup charging circuit
A charger capable of safely charging an apparatus even when the current limit value of an external power supply is less than the maximum charging current of the charger or when the battery voltage...
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7471059 |
Multiple function current-sharing charging system and method
Multiple function current-sharing charging systems aid methods are provided. Where first and second rechargeable power supplies are connected to a charging system, a first charging current is...
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7466974 |
Heavy-duty audio equipment
In accordance with the present invention, an improved audio equipment is employed. The audio equipment includes a housing, audio circuitry installed within the housing, and a first protective bar...
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7446434 |
Dual mode power management system
A power management system has a primary power source ( 100 ) and a secondary power source ( 106 ) generated from the primary power source ( 100 ) with a power output selector ( 204 ) coupled to...
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7422817 |
Fuel cell device with compound power supply
A fuel cell device with a compound power supply is disclosed, which comprises a bipolar fuel cell board and an auxiliary power supply. The bipolar fuel cell board includes at least one fuel cell...
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7414332 |
Electric power unit and electronics device obtaining power from a plurality of power sources
An electric power unit selectable and usable a plurality of electric sources, including an electric source-discriminating device to detect attached electric sources of the plurality of electric...
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7388352 |
Methods and apparatus for simultaneously charging multiple rechargeable batteries
A charger has two or more separate charging ports to which two or more rechargeable batteries can be coupled, respectively. Current from a single current source is allocated to the two or more...
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7385374 |
Adaptive power system
A power system having an extended life and a system and method for extending the life of a battery powered device. In one embodiment, the method comprises providing a plurality of power sources and...
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7375985 |
High efficiency single stage bidirectional converter
The present invention focuses on the development of a high-efficiency single-stage bidirectional converter with multi-input power sources. In the present invention, it takes a three-winding coupled...
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7363522 |
Apparatus and methods for information handling system with power supply device with variable output power
An information handling system includes a power source configured to provide a plurality of power levels to a load. At least one of the plurality of power levels corresponds to a level obtained by...
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7362005 |
Isolated dual battery system
An isolated dual power source system for isolating a first power source of a vehicle, connected to an engine starter, from a second power source of the vehicle which has an electrical circuit for...
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7340627 |
Method and system for supplementing current during enumeration of a USB device
A method and device for supplementing current from the USB bus for enumerating USB devices that require additional current beyond that allowable by USB bus specification. A chargeable power source,...
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7298113 |
Battery pack
A detecting switch which is turned on/off in accordance with whether or not primary batteries have been attached to a primary battery holder is provided. In a normal state where no primary battery...
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7253589 |
Dual-source CMOS battery charger
A circuit for charging a battery by selecting among two available power sources while providing overcharging and temperature protection to the battery and managing a charging current is described....
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7244524 |
Method and system for balanced control of backup power
A power system comprising: a primary power source in electrical communication with a electrolysis cell, wherein the electrolysis cell is in electrical communication with a bus; a secondary power...
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7216246 |
Electronic apparatus and supply power setting method for the apparatus
An electronic apparatus according to the invention can be powered by a fuel cell unit and secondary battery unit. Power supply management utility executed by a CPU displays the states of use of the...
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7215041 |
Charging circuit for a frequency converter
A charging circuit for a frequency converter having a first feed line with a first constant current source therein and a second feed line with a second constant current source therein. An...
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7166988 |
Portable electronic apparatus including detachable system and expansion modules
A portable electronic apparatus includes first and second modules, and a control unit. The first module includes a first charging circuit to be coupled to a first power source, and a first battery...
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7135835 |
Converter apparatus, inverter apparatus, and DC link voltage control method
The invention is directed to the provision of a converter apparatus, an inverter apparatus, and a DC link voltage control method, wherein the upper limit value of the DC link voltage that rises due...
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7109875 |
Sensor network system managing method, sensor network system managing program, storage medium containing sensor network system managing program, sensor network system managing device, relay network managing method, relay network managing program, storage medium containing relay network managing program, and relay network managing device
In a sensor network system, a communications network connects a set of sensors to a server collectively managing the set of sensors. First, the sensor-managing server acquires remaining drive times...
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7095213 |
Multifunctional complex power supply device
A multifunctional complex power supply device has an anti-countercurrent and voltage-regulation circuit with a rechargeable battery connected in conjunction with a solar battery, a generator and a...
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7060379 |
Method and system for controlling and recovering short duration bridge power to maximize backup power
A power system, comprising: a primary power source in electrical communication with a bus and a bridging power source, wherein the bridging power source comprises at least one of a capacitor, a...
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7057361 |
Inverter control device and electric vehicle thereof
In a discharge control section of an inverter control device, when the connection of the battery and the smoothing capacitor is disconnected by means of a contactor, the charge accumulated on the...
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6998821 |
Uninterruptible power supply
An uninterruptible power supply comprises a power supply unit for generating DC power at a predetermined voltage from AC power supplied from the outside to supply the DC power to an electronic...
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6924567 |
Method and system for managing battery power
An exchanger switch for use with a plurality of batteries that extends the useful life of the batteries. In a generator, a first battery can provide power to an external load while also providing...
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6888354 |
Apparatus and method for detecting missing or defective battery conditions
An apparatus and method for detecting battery removal, battery absence, and/or defective battery condition for use with battery charging and testing systems is provided. The apparatus includes a...
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6828754 |
Charging device with two-way input/output from the battery holder
A portable, multi-purpose charging device to charge a primary battery, or one unit or multiple units of secondary battery having same or different voltage than that of the primary battery, and to...
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6811903 |
Electrochemical cell recharging system
A rechargeable electrochemical cell system is provided. The system includes a plurality of cells, wherein each cell is comprised of a first electrode, a second electrode, and a third electrode...
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6737832 |
Power supply apparatus
This provides a power supply apparatus, which detects a battery deterioration without any drop in an output to a load side, at a time of a voltage drop in a usual power supply or a service...
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6669742 |
Method for producing a nickel metal-hydride storage battery
A method for producing a nickel metal-hydride storage battery includes: (i) assembling a battery by enclosing the positive electrodes, the negative electrodes, separators, and an electrolyte in a...
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6605926 |
Battery charger
A battery charger, a method for charging a battery, and a software program for operating the battery charger. The battery charger is capable of charging different types of batteries and capable of...
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6580251 |
Power charging device using multiple energy sources
A power charging device is provided in which different power sources 12 are used, and if the generating capacity of each of the power sources varies without correlation, the voltage thereof is...
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6577883 |
Method of detecting battery pack type and mobile electronic device
A method of detecting the type of a battery pack in a mobile electronic device is provided, which detects the type of a battery pack connected in a mobile electronic device even if no dedicated...
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6472849 |
Reverse blocking function integrated into charging circuit
An apparatus and method is provided that blocks reverse currents. A PMOS device prevents reverse currents from draining the battery. The PMOS device is activated when a light load is detected on...
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6452364 |
Battery charge control circuit, battery charging device, and battery charge control method
A battery charge control circuit, a battery charging device, and a battery charge control method for controlling the charging of a battery are provided. A power source supplies a current to a load,...
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6300745 |
Method in charging a battery powered device and apparatus for working the method
A method in charging a battery powered device (10) having a built-in charge control circuit (13) controlled by the device, and an apparatus for working the method, including said device. The device...
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6288522 |
Method and apparatus for controlling battery charging current
A method and apparatus for controlling battery charging current selectively receive electrical power from either a first external power source or a second external power source and outputs part of...
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6150796 |
Low current vehicular adapter charger
A method and apparatus for a mobile battery charging arrangement (100, 104, 114) utilizes a controllable power switch (306) to selectively switch power from a vehicular power source (114), such as...
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