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7615962 |
Solar-powered thermometer and clock
A solar-powered clock and thermometer having solar energy system for powering an electrical subsystem is disclosed. The electrical subsystem may include lighting elements for illuminating the clock...
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7605689 |
Remote control with energy harvesting
A remote control includes energy harvesting that provides power in addition to a battery. The energy harvesting and the battery may be switchably used to power transmit operations, receive...
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7602150 |
Battery device for electronic apparatus with rechargeable secondary battery, fuel cell and run time computing unit
A battery device for an electronic apparatus includes a rechargeable secondary battery, a fuel cell, and a run time computing unit receiving data representative of a voltage versus...
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7597977 |
Diagnostic method for fuel cell
In a diagnostic method for a fuel cell, the amount of cross leak is determined by supplying the anode of the fuel cell with a hydrogen or hydrogen-containing gas, and supplying the cathode with an...
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7593708 |
Methods of operating electronic devices, and methods of providing electronic devices
Some embodiments include a method disposing an integrated circuit die within a housing, the integrated circuit die having integrated circuitry formed thereon, the integrated circuitry including...
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7583050 |
DC power source with fuel cell and electric power storage device
A power source system ( 1 ) includes a fuel cell ( 40 ) and a battery ( 20 ) connected in parallel. A DC-DC converter ( 30 ) is connected to the battery ( 20 ) side. A maximum output ratio of the...
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7579806 |
Direct methanol fuel cell pack heating system
A temperature sensor ( 13 ) and a heating device ( 14 ) are provided to prevent moisture from freezing i a direct methanol fuel cell ( 16 ). To achieve this, a secondary battery ( 17 ) is connected...
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7576512 |
Secondary battery charging system capable of preventing drop of charged electric power
A secondary battery charging system, mounted on a vehicle having an internal combustion engine, has a secondary battery, a fuel cell, a fuel storage unit, and a fuel supply controller. In order to...
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7570010 |
Solar panel with pulse charger
A rechargeable power assembly having at least one lithium ion cell comprising an anode, a cathode, an electrolyte gel; a pulsed balancing circuit connected to the at least one lithium ion cell for...
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7569294 |
Modular portable battery charging system using hydrogen fuel cells
Battery charging system comprising a hydrogen source module adapted to provide gaseous hydrogen; a hydrogen fuel cell power module comprising a hydrogen fuel cell and a power delivery outlet unit...
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7565968 |
Portable survival kit
A portable survival kit includes a housing defining an internal compartment. One or more rechargeable energy sources are inside the compartment. One or more electrical generators are associated...
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7564212 |
Mobile communication device with solar cell
A mobile communication device is provided. The mobile communication device includes a processing unit, a battery unit, a solar cell unit, an electronic switch circuit and an analog to digital...
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7564211 |
Electric power generation control system and electric power generation control method for fuel cell
A power generation control system for a fuel cell, including a chargeable/dischargeable unit connected to a fuel cell, for being charged with electric power from the fuel cell and discharging...
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7560832 |
Power supply and related systems and methods
A power supply includes a power source having first and second terminals. A circuit is coupled to the source and is operable to maintain a first quantity between the terminals within a...
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7557532 |
Voltage supplying apparatus using a fuel cell
A voltage supplying apparatus using fuel cell to be a voltage source is provided. The voltage supplying apparatus comprises a fuel cell, a DC-DC voltage converter and a control circuit. The DC-DC...
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7557531 |
Power system utilizing flow batteries
The present invention is an energy generating system which uses an advanced aqueous-electrolyte energy storage system in conjunction with a commercial available primary source of power and a backup...
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7550944 |
Solar-powered battery charger circuit
An interface circuit charges a rechargeable battery from a power source. A normally-closed relay with normally-closed switch contacts and a coil having a first end and a second end has its...
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7550942 |
Hybrid power supply system and controller for warm-up mode
A hybrid power supply system having a fuel cell and a secondary power storage device is used as the power source of a drive motor for a motorcycle. Oxygen supplied from an air blower and hydrogen...
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7545117 |
Two stage energy storage device
An electronic device, which captures and accumulates varying levels of electrical energy in suitable short-term storage means until the energy is of such a level that it can be efficiently...
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7535194 |
Fuel cell system built as a system in which a fuel cell and an electric device are provided in parallel
A fuel cell system of the present invention includes a fuel cell stack, a fuel feeder that provides the fuel cell stack with fuel, a fuel cell DC/DC converter that converts the output voltage of...
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7528698 |
Multiple antenna energy harvesting
Energy harvesting circuits and associated methods are provided that employ multiple antennas to optimize the amount of energy that is harvested while at the same time making efficient use of tag...
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7526346 |
Nonlinear thermal control of a PEM fuel cell stack
A temperature control scheme for a fuel cell stack thermal sub-system in a fuel cell system that uses a non-linear thermal model and disturbance rejection to provide an optimum stack temperature....
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7521898 |
Charger, DC/DC converter including that charger, and control circuit thereof
A new charger wherein a reference voltage can be set therein. The charger charges a secondary battery via a DC/DC converter that has an arrangement in which a fuel cell, a solar cell or the like...
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7521138 |
Apparatus and method for hybrid power module systems
A hybrid power module suitable for use in an array of hybrid power modules comprises a fuel cell stack, an energy storage device, charger circuit operable to charge the energy storage device from...
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7517599 |
Fuel cell system
The measurement precision of a current detector of the fuel cell in a fuel cell system is improved. Where the fuel cell system 20 has not started operation, the vehicle 10 is operating under...
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7514900 |
Portable devices having multiple power interfaces
Portable devices having multiple power interfaces are described herein. According to one embodiment of the invention, a portable electronic device includes, but is not limited to, a processor, a...
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7514899 |
Method and apparatus for optical wireless charging
A portable electronic device is recharged by generating light from a light source of a wireless optical charger, converting the light from the charger into an electrical signal using a photovoltaic...
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7504831 |
Cell-voltage measuring structure for fuel cell stack and related method
A cell-voltage measuring structure for a fuel cell stack, in which a plurality of unit cells, having conductive separators which includes anode-side separators and cathode-side separators to form...
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7501789 |
Solar powered battery charger with voltage regulation circuit apparatus and method
The present invention relates to a solar powered battery charger with voltage regulation circuit and the method for recharging a car battery. The charger comprises an input port for receiving...
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7501788 |
Quantum generator and related devices of energy extraction and conversion
This invention refers to the Quantum Generator and Accessories, as the first-mode quantum generator, as the second-mode quantum generator, as the radiant recharger for accumulators and as the...
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7492120 |
Mobile solar generator
A portable PV modular solar generator for providing electricity to a stationary electrically powered device. A plurality of wheels is attached to a rechargeable battery container. The plurality of...
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7486044 |
Light detection power system and method for same
The invention concerns a light detection power system ( 105 ). The system can include a solar cell charging circuit ( 120 ) having at least one solar cell ( 116 ) in which the solar cell charging...
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7485383 |
Fuel cell power supply
A fuel cell power supply has a fuel cell and a capacitor which are connected parallel to each other, and controls the amount of a reacting gas supplied to the fuel gas based on a target supply...
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7482778 |
Fuel cell power system having a master control unit and a plurality of fuel cell power units
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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7478712 |
Energy collection
An energy collection system may collect and use the energy generated by an electric field. Collection fibers are suspended from a support wire system supported by poles. The support wire system is...
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7474075 |
Devices powered by conformable fuel cells
Thin layers of fuel cells are provided on the housings of portable electrically-powered devices. The fuel cells provide electrical power for the devices. The fuel cell layers can follow contours of...
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7465507 |
Portable fuel cell system with releasable and rechargeable batteries
A fuel cell power system has a fuel cell capable of generating electrical power, a battery holder releasably mounting at least one rechargeable battery, and a power controller which receives the...
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7459880 |
Solar generator panel for an electric or hybrid vehicle
An apparatus for charging a battery of a vehicle includes at least one photovoltaic cell that is adapted to convert solar insolation into electricity. The position of each photovoltaic cell is...
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7456604 |
Electric power control apparatus, power generation system and power grid system
An electric power control apparatus outputs output from a power generation apparatus to a power system has a power converter that converts power output from the power generation apparatus and a...
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7446501 |
Integrated fuel cell controller for devices
Power unit for an electronic device and process for control and regulation of an electronic device powered by a fuel cell. Power unit includes a fuel cell having a low output voltage between 0.3...
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7443133 |
Fuel cell management system and audio system provided with the management system
A management information display unit that is able to form management information for managing the power supply state of fuel cells and displays the management information while allowing the...
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7440780 |
Recharging method and apparatus
The present invention provides apparatus and an associated method for remotely energizing power storage devices. Energization may preferably be effected through the use of RF energy from a base...
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7433655 |
Battery-operated wireless-communication apparatus and method
A combined battery and wireless-communications apparatus and method. In some embodiments, the apparatus includes a support, a first conductive layer deposited on a first surface area of the...
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7427450 |
Hybrid fuel cell system with battery capacitor energy storage system
A fuel cell system that employs a super capacitor and battery electrically coupled in series with each other and in parallel with a fuel cell stack on a power bus line. As the voltage on the power...
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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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7420295 |
Power unit for conveyance and conveyance provided with the power unit
The present invention provides a power unit for conveyance, having a main power source and a standby power source. The power unit has a thermal battery provided as the standby power source. The...
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7417437 |
Vehicle battery testing assembly
A portable assembly includes a multi-level housing having a vertically oriented back wall and an elongated rectilinear axle conjoined thereto. The housing further includes an elongated handle...
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7400911 |
Wireless node and method of powering a wireless node employing ambient light to charge an energy store
A wireless node, such as a sensor node or other suitable node, includes a supercapacitor having a charge and one or more photocells adapted to charge the supercapacitor responsive to ambient light....
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7397217 |
Measuring fuel by counting coulombs
Subject matter includes an electric charge counting fuel gauge that displays an amount of fuel based on electric charges obtained from a fuel. The electric charge counting fuel gauge can display an...
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7388348 |
Portable solar energy system
The portable solar energy system stores electrical energy generated by a solar panel, which is made of an array of photovoltaic cells, in a dc storage battery, and upon demand converts the dc...
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