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7612540 |
Lithium-ion battery diagnostic and prognostic techniques
Embodiments provide a method and a system for determining cell imbalance condition of a multi-cell battery including a plurality of cell strings. To determine a cell imbalance condition, a charge...
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7610498 |
Very low voltage power distribution for mobile devices
A mobile computing device comprises a central processing unit (CPU), memory that communicates with said CPU, an interface that communicates with said memory and said CPU and a display that...
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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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7573239 |
Circuit for monitoring batteries in a parallel configuration while under load
The invention includes a circuit to monitor batteries arranged in a parallel battery configuration for charge/discharge battery circuit operation. The circuit selectively tests for each battery's...
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7573154 |
Battery operated portable electronic device having dual batteries
A battery-operated portable electronic device has a primary battery to provide energy to low current circuitry of the portable device, and a supplemental battery to provide intermittent bursts of...
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7567057 |
Multiple battery management system, auxiliary battery attachment system, and network controlled multiple battery system
The instant invention is directed to a multiple battery system and network controlled multiple battery system. A main battery having a main positive output and a main negative output is also...
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7553583 |
Systems and methods for constructing a battery pack
Methods and systems for constructing a battery, the battery including at least two energy storage sections connected in parallel to a common module power bus, the energy storage sections including...
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7518338 |
Parallel hybrid battery pack charging
For charging a rechargeable hybrid battery pack, a first cell stack coupled in parallel with a second cell stack of the hybrid battery pack are pre-charged in parallel. The cell stack to first...
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7414381 |
Charging circuit for parallel charging in multiple battery systems
A charging circuit for controlling a system charging parameter provided to a host of rechargeable batteries, wherein the host of batteries includes at least a first battery and second battery that...
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7394225 |
Pseudo constant current multiple cell battery charger configured with a parallel topology
A multiple cell battery charger configured in a parallel topology provides constant current charging. The multiple cell battery charger requires fewer active components than known serial battery...
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7388349 |
Multiple battery switching method and apparatus
The instant invention is directed to a multiple battery system and network controlled multiple battery system. A main battery having a main positive output and a main negative output is also...
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7379296 |
Notebook computer with replaceable battery holder module
A notebook computer with a replaceable battery holder module is provided, which comprises a notebook computer system and a replaceable battery holder module. With the setting of the replaceable...
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7339347 |
Apparatus and method for reliably supplying electrical energy to an electrical system
The instant invention is directed to a multiple battery system and auxiliary battery attachment system. The invention provides a battery housing having a common positive terminal and a common...
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7277782 |
Control system and method for electric vehicle
An electric traction vehicle is described herein which may be used to provide power to off-board electric power-consuming systems or devices. The electric traction vehicle may provide 250 kilowatts...
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7064521 |
Charging circuit for parallel charging in multiple battery systems
A charging circuit for controlling a system charging parameter provided to a host of rechargeable batteries, wherein the host of batteries includes at least a first battery and second battery that...
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7049792 |
Method and apparatus for a hybrid battery configuration for use in an electric or hybrid electric motive power system
A power system for an electric motor drive such as may be used in an electrically propelled vehicle incorporates the combination of a high power density battery and a high energy density battery to...
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6975091 |
Power control unit of fuel cell hybrid vehicle
A power control unit of a fuel cell hybrid vehicle includes a first switching unit, a second switching unit, and a control unit. One terminal of the first switching unit is connected to a fuel cell...
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6771044 |
Electrical power management for recharging multiple battery-powered computers
An electrical power management system is provided for effectively managing available electrical power for recharging batteries used in a plurality of battery-powered computers. The electrical power...
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6731021 |
Two-battery system
A two-battery system includes a starter, a generator, a starter battery, a vehicle electrical system battery, vehicle electrical system-specific consumers and consumers relevant to starting. A...
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6718214 |
Method for switching consumer on or off
A method for turning various classes of loads on and off by means of switch elements in the context of energy management performed by a control unit, particularly in a motor vehicle, is described,...
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6693403 |
Power failure tolerant motor drives for dual voltage systems
A dual voltage motor drive is disclosed. In an exemplary embodiment, the motor includes a rotor assembly, rotatingly disposed within a stator assembly, and a plurality of motor phase windings...
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6639384 |
Vehicular power supply device
A vehicular power supply device which includes a generator, a high-voltage battery, a voltage converter, and a plurality of low-voltage batteries. The high-voltage battery is charged with power...
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6627337 |
Conversion of low rate energy into high rate energy by parallel discharging
An electrode configuration for use in a defibrillator battery to improve the battery capacity and its utilization efficiency by using a combination SVO cell and a CF x cell discharged in parallel,...
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6387553 |
Pulse battery having an electrode with at least two electroactive materials
A battery power supply has a primary battery to provide long service life and a secondary battery to provide short instantaneous power pulses required by loads with variable duty cycles and...
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6313751 |
Battery failure indicator for a single battery
A modification to existing mono-block battery design for positively indicating the operating condition of the battery by adding a failure detector. The voltage of two groups of internal series...
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6265847 |
Rechargeable battery control device
A control device (7) located in battery operated device or battery pack is used to control charging and discharging cycles of a pair of rechargeable batteries (6a, 6b). The device determines which...
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6081096 |
Apparatus and method for discharging and charging a multiple battery arrangement
A device (100) includes detachable main and auxiliary batteries (101, 102) and a circuit (310) for discharging and charging the batteries (101, 102). Discharging is accomplished by an auxiliary...
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5998052 |
Composite battery and methods of forming same
A composite electrical battery including a primary electrochemical cell and a fully or partially discharged rechargeable electrochemical cell. The rechargeable electrochemical cell is electrically...
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5973476 |
Battery packs including rechargeable and non-rechargeable batteries and related systems and methods
A battery pack for an electronic device includes a housing separate from the electronic device wherein the housing can be mechanically connected to the electronic device. Electrical contacts on the...
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5914585 |
Power sharing in computing systems with a plurality of electronic devices
A user-wearable docking system includes docking receptacles on a belt for receiving a plurality of electronic devices such as a hand-held personal data terminal, code reader, printer, etc. The...
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5894212 |
Discharge monitoring and isolating system for batteries
A battery-cell protection system includes a processor, a wake-up circuit, and a shunt or isolation switch. The processor responds to voltages from cells in a battery by detecting any of the...
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5821729 |
Method and device for charge exchange between a plurality of energy stores or converters connected in series
A method and apparatus for charge exchange between a plurality of series-connected identical energy storage devices. At least one electric storage device is alternately at a given rate connected in...
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5814968 |
Battery charger and rechargeable electronic paging device assembly
A battery charger and electronic device assembly is provided for recharging stackable electronic devices in multiple orientation or rotation with respect to each other without the need for either...
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5811959 |
Smart circuit board for multicell battery protection
An interface circuit device for safe and efficient charging and/or discharging of any multicelled battery or pack of batteries. The device includes circuitry for protection of said battery or pack...
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5793187 |
System and method for increasing the available energy in non-rechargeable batteries
A system and method for increasing the available energy and system runtime of battery powered electric devices which use non-rechargeable cells as an energy source. The present invention employs...
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5764032 |
Multiple battery switchover circuits
Multiple battery switchover circuits for selective interconnecting any one of multiple batteries to a load or a charger while maintaining isolation with other batteries of the system. The present...
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5764027 |
Method and apparatus for battery charge balancing
In the embodiment of the present invention, a method for balancing charges of a plurality of batteries coupled in series includes determining actual or estimated rates of self-discharge of the...
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5747966 |
Battery charging/discharging apparatus with serial battery connection
A battery charging/discharging apparatus has batteries, a charger, diodes and switches. The diodes are respectively connected in parallel with the batteries. The cathode of each diode is connected...
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5747964 |
Rechargeable battery and charging system
A battery charging system for multiple series connected battery cells which includes a plurality of shunt regulators, adapted to be connected in parallel with each of the cells. The voltage of each...
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5739669 |
Electric battery management device
The device 1 for the management of a plurality electric battery elements 2 connected in series, comprises a plurality of battery management modules 4, each management module being connected in...
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5726552 |
Method and apparatus for controlling charging of electrical power storage unit
An electric power storage unit consisting of a series combination of capacitor cells. The storage unit is electrically charged with a constant charging current from a charger with a simple...
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5539297 |
Charging device for charging a plurality of batteries based on parameter priority
The charging device for charging a plurality of rechargeable batteries according to the invention includes at least two sensors associated with each rechargeable battery for measuring a measurable...
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5396162 |
Portable battery charger
A portable battery charger for rechargeable battery powered appliances, tools, toys or the like. The portable battery charger includes, a portable direct current power source, a housing designed to...
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5357184 |
Fuse system for a multiple battery charger
A fuse system for a battery charger provides fuse links for safely charging a plurality of batteries in parallel connection. A fuse system is used with a power supply comprising a positive and a...
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5281920 |
On-line battery impedance measurement
Impedance measurement of battery cells within a battery system comprising at least one string of battery cells is accomplished by dividing each of the strings into at least two portions. A loading...
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5264777 |
System for isolating commonly charged batteries
A battery isolator for selectively connecting a pair of batteries to each other to allow both batteries to be charged by a charger connected to one of the batteries while allowing the batteries to...
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5243269 |
Battery power supply system
A battery power supply system for supplying DC electric power to a DC operated apparatus includes an AC/DC adapter for converting AC electric power into DC electric power, a plurality of batteries...
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5229705 |
Method and apparatus for charging a nickel-cadmium battery
A charging control circuit having a controller including a microcomputer, a charging circuit, detectors for detecting the voltages between the terminals of batteries, and memories for storing...
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5204610 |
Long lived dual battery with automatic latching switch
A latching automatic dual battery switch employs a first comparator to determine that a condition requiring engagement of a secondary battery exists. For example, a primary battery voltage is below...
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5194799 |
Booster battery assembly
A booster battery assembly is provided, where the booster battery is intended for use to provide additional energy to vehicle batteries, while connected in parallel with such vehicle batteries, so...
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