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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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7378757 |
Power generation system
A power generating system includes a power generator generating DC power, and an inverter circuit for converting DC power into AC power. The power generator has a plurality of power generating...
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7348759 |
Electronic apparatus, electronic apparatus system, and operation mode switching method
An electronic apparatus system of this invention includes an electronic apparatus, and a fuel cell unit which is detachable from the electronic apparatus. The fuel cell unit incorporates a DMFC...
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7271567 |
Fuel cell power and management system, and technique for controlling and/or operating same
There are many inventions described and illustrated herein. In one aspect, the present invention is directed to a portable fuel cell power and management system (for example, hydrogen and/or...
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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...
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7259536 |
Solar powered mobile
A solar powered mobile, comprising a drive housing fitting within a case, a solar cell panel fitted within the top of the drive housing, a clear cover over the solar cell panel, a removable DC...
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7256566 |
Method and apparatus for determining a maximum power point of photovoltaic cells
The maximum power point (MPP) of a photovoltaic array that can be coupled to power inverter is determined. A capacitor on a DC-bus side of the inverter is used as a load from which I-V...
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7248018 |
Personal renewable-energy fueling and storage station for electric-powered vehicles
A personal refueling station for a personal-sized electric vehicle has a polygonal base structure housing a refueling system and a plurality of flat panels hinged thereto which open to form a flat...
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7226675 |
Very low emission hybrid electric vehicle incorporating an integrated propulsion system including a fuel cell and a high power nickel metal hydride battery pack
A very low emission hybrid electric vehicle incorporating an integrated propulsion system which includes a fuel cell, a metal hydride hydrogen storage unit, an electric motor, high specific power,...
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7224286 |
Solar panel having visual indicator
A solar panel incorporating a selectively actuable energy availability indicator arrangement. The arrangement includes a visual indicator, such as an LED, and a selectively actuable button....
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7205745 |
Portable power source system
In a portable power source system comprising a battery pack for accommodating at least one secondary battery and a mounting part for mounting the battery pack, the mounting part is disposed in...
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7199550 |
Method of operating a secondary battery system having first and second tanks for reserving electrolytes
The invention provides a secondary battery system that allows a high overload operation regardless of discharging condition during a steady operation, and an operating method thereof. The secondary...
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7196492 |
Power supply apparatus including fuel cell and capacitor, and operation method thereof
An electric vehicle 10 includes a power supply apparatus 15 . The power supply apparatus 15 includes a fuel cell system 22 , capacitor 24 and secondary battery 26 that are connected in...
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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...
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7183742 |
Unmanned underwater vehicle fuel cell powered charging system and method
A charging system for an unmanned underwater vehicle (UUV) is disposed within a submerged docking station. The charging system includes a battery, a fuel cell, a fuel source, and a charge...
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7180264 |
Fuel flexible thermoelectric generator with battery charger
A micro-generator for providing electrical power to a battery charger capable of charging lithium ion, lithium polymer and other rechargeable batteries of the type which power portable electronic...
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7166985 |
Fuel cell power system having a plurality of rack fuel cell power modules
A fuel cell power module is provided. The module comprises (a) power production unit, (b) a power conditioning and protection unit, and (c) a control unit, each unit being modules and integrated...
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7129674 |
Power supply apparatus having control section for controlling quantity of fuel to be supplied to fuel cell
The power supply apparatus of the present invention comprises a fuel cell, a secondary battery for supplying power to a load, a power measurement section for measuring the output power of the fuel...
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7119458 |
A/C—D/C power system with internal fuel cell
An A/C-D/C-F/C power system is provided that includes a portable power unit that can accept electricity from a number of alternative sources including an AC power source, a DC power source, a...
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7117906 |
Datum based interchangeable fuel cell cartridges
The present invention is directed to a fuel supply adapted to be connected to a host device, such as an electronic device powered by a fuel cell. The fuel supply comprises a front face and at least...
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7099787 |
Technique and apparatus to measure a fuel cell parameter
A technique includes introducing an electrical perturbation to a fuel cell system during operation of the fuel cell system. This electrical perturbation does not substantially disrupt the operation...
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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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7087329 |
Electric storage augmentation of fuel cell system transient response
A fuel cell stack ( 7 ) with output lines ( 8, 9 ) has a bank of supercapacitors ( 10 ) or batteries ( 10 a ) connected across the output lines, either directly or through a DC/DC converter ( 22 )....
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7087327 |
Electric power plant with adjustable array of fuel cell systems
An electric power plant includes an array of fuel cell systems. The fuel cell systems are electrically couplable in series and/or parallel combinations to provide a variety of output powers, output...
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7084605 |
Energy harvesting circuit
A station having a means for receipt of ambient energy from the environment and energizing power storage devices of objects of interest comprising one or more antennae and circuitry for converting...
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7061205 |
Method for operating redox flow battery system
An operating method of a redox flow battery system that can provide a stabilized output to a system from a redox flow battery system annexed to a wind power generator, to produce an improved...
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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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7049788 |
Power source device for electric motor
An electric motor ( 5 ) and an accessory circuit ( 7, 8 ) are connected in parallel to an output terminal ( 1 A) of a fuel cell power plant ( 2 ). A secondary battery ( 3 ) is connected to the...
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7042195 |
Method of controlling photovoltaic power generation system
A conventional hill climbing method is not capable of tracking a maximum power when a shadow covers a part of a solar cell panel and a plurality of maximal values is thereby developed. The...
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7038424 |
Method and apparatus for rejuvenating fuel cells
Methods and devices for rejuvenating, supplementing, or bypassing an individual fuel cell or a group of fuel cells, in a fuel cell stack, is disclosed. The methods and devices provide for a...
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7026541 |
Mobile photovoltaic battery charging station
A solar cell plate for generating electric current includes a number of individual plates that can be moved in relation to one another to produce a convenient packing size.
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7000395 |
Hybrid clean-energy power-supply framework
A hybrid clean-energy power-supply framework integrates a fuel cell, solar cell, and wind energy, applies a max power tracking rule, raises the output power of a solar cell and wind energy to...
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6992460 |
Fuel cell network power system
A fuel cell power module is provided. The module comprises (a) power production unit, (b) a power conditioning and protection unit, and (c) a control unit, each unit being modules and integrated...
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6979989 |
Maximum power sensor for photovoltaic system
A maximum power level sensor and method for reliably providing instantaneous estimates of maximum power level for a photovoltaic system including one or more photovoltaic cells under prevailing...
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6979504 |
Fuel cell system automatic power switching method and apparatus
A fuel cell system includes a fuel cell stack, a battery, and a control system. A power circuit couples the fuel cell system selectively between the fuel cell stack and the battery. The power...
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6977479 |
Portable cell phone battery charger using solar energy as the primary source of power
A portable, cellular phone battery charger using solar energy as the primary source of power and including two separate solar panels and a battery/switch containing unit. The two panels are...
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6974904 |
Portable solar powered unit
A portable solar powered unit including a battery with associated electronics and a solar panel on a wheeled frame accommodates a variety of accessories including table tops, mounting poles,...
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6972159 |
Fuel cell system
A fuel-cell system, in particular for a vehicle, has a device for supplying the operating agents for a fuel cell and an electrical energy accumulator. The energy accumulator is composed of a...
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6967462 |
Charging of devices by microwave power beaming
A system for providing wireless, charging power and/or primary power to electronic/electrical devices is described whereby microwave energy is employed. Microwave energy is focused by a power...
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6952090 |
Wheel having an accelerating charger
A wheel having an accelerating charger includes a wheel body, a generator unit, an accelerating gear set, and a shaft. The generator unit and the accelerating gear set are coupled in the wheel body...
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6949909 |
Solar energy pulse charge device
A solar energy pulse charge device includes a solar-powered panel and a charging unit connected to the solar-powered panel for saving the energy from the solar-powered panel. A control unit is...
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6936994 |
Electrostatic energy generators and uses of same
Methods and devices are disclosed for electrostatically generating electrical energy in response to state changes of external energy sources. In a simple embodiment, a first diode directs priming...
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6914411 |
Power supply and method for controlling it
A self-powered apparatus includes a solar power cell, a battery, and a load. The load may include one or more load functions performed using power provided by one or both of the solar power cell...
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6893758 |
Fuel cell system and method of stopping the system
When a fuel cell system is to be stopped, a controller 3 decreases the coolant flowrate to a fuel cell 1 , decreases the cooling performance of the fuel cell 1 and continues operation of the...
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6892165 |
Diagnosis method and diagnosis apparatus of photovoltaic power system
A reference output characteristic of a photovoltaic power system at the time of normal operation is obtained in accordance with an installation condition (topography of installation site,...
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6887596 |
Portable disposable fuel-battery unit for a fuel cell system
The present invention provides methods for providing a portable disposable fuel-battery unit, a portable disposable fuel-battery unit for a fuel cell system having at least one fuel cell, a fuel...
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6884934 |
Solar-battery array, and photovoltaic power generation system
A solar-battery array comprising a plurality of solar batteries, which is characterized by satisfying the relationship of V 2 <0 and V 1 +V 2 >0, where V 1 is the voltage to ground of the...
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6858337 |
Reversible fuel cell power plant
The invention is a reversible fuel cell power plant ( 10 ). A reactant switch-over assembly ( 48 ) is secured between a reducing fluid fuel source ( 30 ), an oxygen containing oxidant source ( 24...
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6856116 |
System and method to maintain charge of vehicle battery using light energy
A system for and method of charging or maintaining a charge of a battery of a vehicle is disclosed. The system utilizes a light-transforming cell that can transform light energy to current. The...
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6847834 |
Mobile terminal with a solar cell
A mobile terminal with a solar cell is disclosed. The mobile terminal has a main body, a battery and a flip cover. A receiver portion, a data display and a keypad are formed on the upper surface of...
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