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5994871 |
Charging of secondary cells using transmitted microwave energy
A method of charging/recharging a secondary cell (24) by rectifying transmitted microwave energy which may be supplied by an unmodified microwave oven (18) into which oit is placed. The secondary...
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5986429 |
Battery charging system for electric vehicles
A battery charging system for electric vehicles comprising a wind tunnel positioned longitudinally along the frame structure of an electric vehicle such that the overall transverse cross section of...
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5969501 |
Portable solar power system
A trailer mounted, self contained solar power system having a plurality of solar panel sections that are arranged to fold about the sides and top of the trailer. The panel sections unfold and lock...
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5963009 |
Salt water power source and lantern
A lantern and power source includes a hollow housing with a hollow tubular power cell formed within the housing. The tubular power cell includes an anode rod formed of a magnesium alloy and...
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5959432 |
Device for charging a battery using a photovoltaic cell, and timepiece comprising same
A device for charging a battery (11), comprising a photovoltaic cell power source (8) of which the output voltage (USC) is lower than the voltage (VDD) across the terminals of the battery. Said...
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5949212 |
Integrated solar cell array and power regulator
A power regulator circuit efficiently regulates electrical power generated by a solar cell array for satellite system load requirements and rechargeable battery needs. The power regulator circuits...
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5936380 |
Alternative power for a portable computer via solar cells
A system for prolonging the operational life of a battery-powered laptop or notebook computer. Solar cells are incorporated into the chassis or display screen of a notebook computer so that the...
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5923100 |
Apparatus for controlling a solar array power system
A system for controlling power supplied by a solar array panel to one of either a load or a battery for optimal power consumption is disclosed. The solar array power control system of the present...
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5917304 |
Battery charging apparatus for electric powered vehicles
A method and apparatus for charging a battery in an electric powered vehicle are provided. The method of charging the battery comprises rotating a fan in response to an airstream generated by a...
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5905356 |
Solar powered charger for vehicular accessories and cordless tools
A light energy powered charging system for recharging portable units such as battery powered hand tools and cellular telephones. The charging system includes a solar collection assembly having at...
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5898932 |
Portable cellular phone with integral solar panel
A new and improved portable cellular phone with integral solar panel including a portable cellular telephone with a rectangular configuration having a front face, a rear face, and a periphery...
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5886499 |
Life extending operational regime for battery
A method of operating a battery, for example, in a geosynchronous spacecraft is presented for maximizing its service life. According to this method, the energy requirements are determined,...
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5869949 |
Charging apparatus and charging system for use with an unstable electrical power supply
When charging current is switched, the output voltage from the solar cell, namely an input voltage to a charging apparatus, changes, and controlling the input voltage to the charging apparatus does...
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5869948 |
Unidirectional battery charge/discharge controller for a regulated electrical bus system with a solar current source
In a satellite experiencing alternate periods of light and eclipse, an electrical power control system utilizing direct energy transfer battery charging in a fully regulated electrical bus system...
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5825157 |
Camera using solar battery
There is disclosed a camera having a secondary battery charged by a solar battery, an overcharging prevention circuit for preventing overcharging to the secondary battery, and a control circuit for...
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5811958 |
Portable electric power source with attached battery charger
A portable electric power source characterized by the fact an electric double layer battery is placed at a stage which follows a cell which generates electricity by receiving sunlight; and in which...
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5808448 |
Method and apparatus for operating an electric vehicle having a hybrid battery
The invention provides driving method and apparatus for an electric vehicle having a motor for driving the vehicle, a dc electric power source, a control device including a signal generating means...
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5793184 |
Solar power supply unit for battery operated devices
This invention uses low levels of light energy as found within dwellings, or other enclosed but lit spaces, to power a device such as a smoke alarm in place of conventional replaceable batteries....
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5779817 |
Circuit arrangement of solar cells
A circuit arrangement with a first string of solar cells which are connected together in series and a second string of solar cells which are connected together in series, the electric power...
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5767657 |
Battery charger having a battery discharge prevention circuit
A battery charger (10) avoids discharging a battery (12) when the battery is connected to the charger and the charger is unpowered. The charger comprises a control circuit (18) which is switchably...
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5751133 |
Charge/discharge control method, charge/discharge controller, and power generation system with charge/discharge controller
In a charge/discharge control system for a charging the output of a storage battery from a solar cell, the output voltage of the storage battery connected to a node between the solar cell output...
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5714869 |
Power source apparatus with battery and overcharge protection circuit
A power source apparatus includes a power generation device, a battery and an overcharge protection circuit. The overcharge protection circuit includes a shunt circuit, including a switching device...
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5705770 |
Thermoelectric module and method of controlling a thermoelectric module
A thermoelectric module includes a switching circuit for switching the connection between a first thermoelectric element and a second thermoelectric element between series connection and parallel...
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5703468 |
Electrical charge control apparatus and method for photovoltaic energy conversion systems
A charge control apparatus and method for charging of an electrical energy storage device, such as a rechargeable storage battery, by an electrical energy source, such as a photovoltaic panel,...
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5688337 |
Temperature compensated photovoltaic array
A temperature compensated photovoltaic module (20) comprised of a series of solar cells (22) having a thermally activated switch (24) connected in parallel with several of the cells (22). The...
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5686809 |
Combination solar and external battery powered camera battery charger
In a camera battery charger, a solar battery is provided upon a lid of a camera case, and a charging circuit for charging the in-camera battery by the solar battery or an external battery. When a...
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5684385 |
Customized storage, high voltage, photovoltaic power station
The present invention relates to a customized storage, high voltage, photovoltaic power station, having at least one photovoltaic solar module and a customized storage device.
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5680032 |
Wind-powered battery charging system
During forward motion of an electrically-powered vehicle, air is captured at the front of the vehicle and channeled to one or more turbines. The air from the turbines is discharged at low pressure...
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5644207 |
Integrated power source
A self-contained, small, lightweight, portable, renewable, modular integrated power source. The power source consists of solar cells that are laminated onto a solid state polymer battery which in...
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5642030 |
Charge control circuit
A control circuit including a relay switch having a fixed terminal adapted to be coupled to a terminal of the battery or the charging source, a normally-closed contact terminal adapted to be...
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5621300 |
Charging control method and apparatus for power generation system
In a charging control method and apparatus which can improve the operating efficiency of a power generation system and prolong the service life of an accumulation unit, a short-circuit switch is...
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5608385 |
Device for determining state of electricity generation of solar battery
A device for determining a state of electricity generation of a solar battery and an apparatus, such as a camera, including such a device are disclosed. The device comprises a first circuit for...
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5594313 |
Solar cell system
A solar cell system stores electric power generated by solar cells and supplies the electric power to a load. This system includes a solar cell assembly having a capacity for generating electric...
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5569998 |
Solar powered pumping system
A solar water pumping system for home use utilizing amorphous solar panels and circuitry for maintaining proper power to the system. Three reference voltages in combination with switching circuitry...
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5563456 |
Solar powered annunciator
A combination shut-down trigger and annunciator may be advantageously powered by a photoelectric power supply. The shut down trigger and annunciator can include a fault detection unit responsive to...
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5522944 |
Multi-purpose solar energy conversion system
Apparatus for converting solar energy to thermal and electrical energy including a substantially unsealed enclosure, an array of photovoltaic cells for converting solar energy to electrical energy...
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5477132 |
Multi-sectioned power converter having current-sharing controller
An interleaved power converter is constructed so as to substantially equalize the power output of individual converter slices or phases. In an embodiment of the invention an interleaved power...
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5429685 |
Photoelectric conversion element and power generation system using the same
The present invention provides a photovoltaic element in which the open-circuit voltage and the path length of holes are improved by preventing the recombination of photoexcited carriers. The p-i-n...
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5424800 |
Camera having solar battery and secondary battery
A camera includes a solar battery, a secondary battery charged by the solar battery, a battery-checking circuit for checking a charged state of the secondary battery, an informing device for...
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5394075 |
Spacecraft bus regulation using solar panel position
A spacecraft power bus regulation method and apparatus for a spacecraft. The spacecraft has solar arrays (10) and a battery (30) coupled to the spacecraft power bus (32) to drive electrical loads...
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5387858 |
Energy-conserving multiple power source and method for battery-operated products
An energy-conserving photvoltaic- or solar-rechargeable power source for commercial or industrial battery-operated products is provided, enabling a high degree of reliability of continued operation...
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5364710 |
Apparatus for converting light energy into electric energy and storing the same
An apparatus for converting light energy into electric energy and storing the same, which comprises a photoelectric conversion unit having an element that generates an electromotive force by...
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5359308 |
Vehicle energy management system using superconducting magnetic energy storage
An energy management system for a hybrid internal combustion and electric vehicle provides a highly energy-efficient and yet highly agile hybrid vehicle. The vehicle includes an internal combustion...
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5359280 |
Bilateral power converter for a satellite power system
A bilateral power converter (10) for a satellite power system comprises a battery (12), an inductor (14), a switching means (18, 20), and a controller (16). The battery (12) preferably has a first...
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5315227 |
Solar recharge station for electric vehicles
A solar recharge station is described having a contact area, a battery bank charge area and a solar panel array for maintaining the battery bank charged. The contact area includes electric contacts...
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5283512 |
Charge balancing of batteries during charging
A battery system comprises a plurality of sodium-sulfur storage cells connected in series to form a battery, with voltage measurement leads attached across each of the individual storage cells. A...
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5276393 |
Solar radiation powered battery reclaimer and charger
A solar powered battery reclaiming and charging circuit is provided having a high frequency section (a bistable multi-vibrator, relaxation blocking bistable multi-vibrator or an oscillator inverter...
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5274584 |
Solid state memory device having optical data connections
The solid state memory device consists of a circuit board based system which is mounted in a 3480 type magnetic tape cartridge form factor housing to make this media physically compatible with the...
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5270636 |
Regulating control circuit for photovoltaic source employing switches, energy storage, and pulse width modulation controller
A regulating circuit controls current flow from a photovoltaic power source (20) to a storage battery (38) to improve the conversion of solar energy to electric energy. Two transistors (22, 30) are...
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5262756 |
Solar powered warning light
A solar powered warning light apparatus including a solar module that charges a single rechargeable Ni-Cad battery is operable for intermittently flashing a xenon flash tube. A recharging network...
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