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7622894 |
Status detector for power supply, power supply, and initial characteristic extracting device for use with power supply
In a status detector for a power supply, a power supply, and an initial characteristic extracting device for use with the power supply, a measuring unit obtains measured values of at least current,...
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7602144 |
Battery management system
The present invention relates to a battery management system for securely maintaining battery charging capacity and precisely measuring a battery pack voltage. The battery management system, which...
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7598700 |
Tamper resistant battery and battery warranty and performance tracking system
A battery warranty and metrics tracking network with a programmable battery product for storing, sending and receiving data from a battery warranty, enablement, and metrics tracking network, having...
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7592774 |
Voltage measurement apparatus and electrically-driven tool
A voltage measurement apparatus is provided in which: among battery cells which make up a battery-cell group, a sampling switch electrically connects any one or more battery cells targeted for...
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7576544 |
Electric quantity indicator for an electromotive vehicle
An electric quantity indicator for an electromotive vehicle comprises an electric measuring wire parallel connected to a battery; a feedback circuit connected between a motor of the power supply...
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7573241 |
Vehicle having a battery with multiple cells and method for operating such a battery
A method for operating a battery having a plurality of battery cells includes determining when certain end of life criteria for the battery are met. A counter is incremented when the certain end of...
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7570023 |
Method of charging batteries
In a method of charging batteries, a microcontroller and a series divider resistor are used to control the level of a charge current source supplied from a power supply, so that a plurality of...
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7564217 |
Battery pack manager and method of detecting a line cut
In a battery pack manager that manages series-connected rechargeable unit cells, a cell equalizer equalizes the cell voltages by individually discharging the unit cells according to deviations from...
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7560901 |
Internal short detection apparatus for secondary-battery, internal short detection method for secondary-battery, battery-pack, and electronic equipment
A secondary-battery internal short detection apparatus is provided which is capable of precisely detecting an internal short being generated in a secondary-battery. In this apparatus: an...
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7560900 |
Rechargeable lithium battery protection device
A rechargeable lithium battery protection device uses an external circuit to control charging or discharging a rechargeable lithium battery for preventing an overcharge or an overdischarge of the...
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7557585 |
Abnormal voltage detection apparatus for detecting voltage abnormality in assembled battery
An abnormal voltage detection apparatus is provided for an assembled battery including a plurality of battery blocks connected in series to each other. In the abnormal voltage detection apparatus,...
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7528581 |
Battery apparatus for controlling plural batteries and control method of plural batteries
Lower order control devices control plural battery cells configuring plural battery modules. An input terminal of the low order control device in the highest potential, an output terminal of the...
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7521896 |
Abnormal voltage detector apparatus for detecting voltage abnormality in assembled battery
An abnormal voltage detector apparatus is provided for an assembled battery including a plurality of battery blocks connected in series to each other. In the abnormal voltage detector apparatus, a...
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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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7498772 |
Method and system of modeling energy flow for vehicle battery diagnostic monitoring
A lead acid battery model suitable for programming on a motor vehicle body computer uses environmental and target battery operating variables for maintaining synchronization of the model with the...
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7495417 |
Accumulating system and method for processing abnormality of accumulating system
When minor short-circuiting abnormality of a battery is determined at timing t 4 , a battery ECU turns on a fail-safe flag to perform a fail-safe process. In the fail-safe process, the battery ECU...
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7471065 |
Multi-series battery control system
A multi-series battery control system comprises a unit battery cell of which unit consists of multiple battery cells, control IC comprising a control IC chip containing a control circuit for...
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7427865 |
Method for detecting a discharge condition fault in an electrical system of a vehicle or piece of machinery
A method for detecting a discharge condition fault in an electrical system of a vehicle or a piece of machinery includes supplying electrical energy to the electrical system from an auxiliary...
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7425832 |
System and method for measuring internal resistance of electrochemical devices
A method and system are provided for measuring impedance and voltage characteristics of individual cells of multi-cell electrochemical devices, for example a battery or a fuel cell stack. The...
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7417406 |
Electronic apparatus that determines a characteristic of a battery
An electronic apparatus which detects when a battery having a different characteristic is mixed in a plurality of batteries accommodated therein. An average voltage V 1 per battery of plural...
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7397221 |
Battery protection device, battery protection system using the same, and battery protection method
A battery protection device protects a battery from an abnormal state. The battery protection device includes a detector that detects an abnormality of the battery and outputs an abnormality...
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7262605 |
Power supply apparatus
A power supply apparatus has a battery apparatus that is composed of a battery, a temperature sensor that is thermally coupled to the battery and whose electrical resistance changes with the...
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7151378 |
Implantable energy management system and method
An implantable energy supply system having at least two cells is disclosed. The system may have a switch with a first state in which the cells are electrically connected to a load, and a second...
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7081761 |
Ultracapacitor useful life prediction
Methods and apparatus are provided for projecting the useful life Y proj of an ultracapacitor undergoing at least one ON period after an OFF period. The apparatus comprises sensors coupled to the...
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7078914 |
Parallel monitor circuit and semiconductor apparatus
A parallel monitor circuit ( 1 A) for monitoring one (C 1 ) of serially connected plural capacitors (Cn) receiving a direct recharging current is disclosed. The circuit comprises a bypassing...
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7078908 |
Voltage detecting apparatus applicable to a combination battery
A voltage detecting apparatus for a combination battery includes a multiplexer type flying capacitor voltage detecting circuit, a synchronous control type A/D converter, and a battery controller....
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6931332 |
Method and system for testing battery connectivity
A method for testing battery connectivity in a battery-backed up system, the method includes inducing a step increase in a battery bus voltage, and monitoring a magnitude of a corresponding current...
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6894600 |
Energy conservation in battery powered tag
Method and apparatus for conserving energy in a battery powered tag which comprises a battery, one or more sensors, and a transmitter. The tag may be used in a pneumatic tire monitoring system...
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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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6833709 |
Low loss fuel cell configuration
Switches ( 306 ) are used to connect stacks of fuel cells ( 302, 304 ) in series or in parallel depending on the load to keep total cell voltage below a maximum input voltage requirement. The cells...
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6816797 |
System and method for measuring fuel cell voltage and high frequency resistance
A method and apparatus are provided for measuring impedance and voltage characteristics of cells of multi-cell electrochemical devices, for example a battery or a fuel cell stack. Voltages are...
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6803766 |
Battery pack voltage detection apparatus
A battery cell voltages are read in parallel to a capacitor for each battery block of a battery pack by the use of analog switches. The stored voltages of the capacitors are A/D-converted...
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6794877 |
Apparatus and method for analytical determinations
An apparatus and method for measuring conductance are provided. The method and apparatus are particularly well adapted for use with a removable or replaceable cartridge in a blood analysis system....
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6777946 |
Cell buffer with built-in test
A cell buffer with built-in testing mechanism is provided. The cell buffer provides the ability to measure voltage provided by a power cell. The testing mechanism provides the ability to test...
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6774637 |
Method of qualifying at least a portion of a fuel cell system and an apparatus employing same
The present invention provides a method for enabling qualification of at least a portion of a fuel cell system. The method includes electronically obtaining at least one result of a test of the at...
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6727809 |
Methods for providing information, messages and advertisements to a user of a fuel pump that is coupled to remote computers through a data communications network
A method for providing information to a user of a fuel pump includes steps of: (A) performing an initial step of bidirectionally coupling a microprocessor of the fuel pump to a communications...
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6724194 |
Cell voltage monitor for a fuel cell stack
Voltage reversal in fuel cell stacks may be detected and/or prevented by monitoring each cell or small groups of cells in the stack for low voltage conditions. An improved cell voltage monitor is...
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6717391 |
Lithium-ion cell voltage telemetry circuit
A battery is a collection of cells place in series, parallel, or both. A telemetry circuit is presented for determining the individual voltage of each cell making up a battery. This device uses a...
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6700384 |
Circuit for detecting leakage in power supply
A power source device comprises a cell unit 12 comprising a plurality of cells 12 a . Connected between a positive side terminal and a negative side terminal of the cell unit 12 is a first...
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6693431 |
Battery system and method of determining battery condition
A battery system including a main battery cell having a first capacity; a sense battery cell connected in series with the main battery cell, the sense battery cell having a second capacity less...
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6674287 |
Method for grouping unit cells using pattern matching technology of impedance spectrum
A method for grouping unit cells of a similar impedance spectrum uses pattern matching technology to optimize the performance of a battery pack made of primary or secondary batteries as the unit...
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6650967 |
Battery configuration with a click
An automated battery configuration system for a telecommunications power system includes at least one rectifier module, a controller and at least one backup battery. A database system is associated...
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6639409 |
Battery voltage measurement device
A battery voltage measurement device includes: a plurality of first switching sections, wherein each pair of adjacent first switching sections sequentially selects two output terminals of each of a...
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6639408 |
Battery voltage measurement device
A battery voltage measurement device includes: a plurality of first switching sections, wherein each pair of adjacent first switching sections sequentially selects two output terminals of each of a...
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6628120 |
Voltage measuring circuit and voltage supply circuit of an integrated fuel cell system
In a voltage measuring circuit for a composite fuel cell system, the potential of at least one point of the composite fuel cell system is detected by tapping the potential of such point, and...
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6614233 |
Apparatus for detecting battery pack abnormality and method of detecting battery pack abnormality
Cell controllers provided to control modules each constituted of a plurality of cells each calculate deterioration factors indicating the extents to which the cells under its control have become...
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6532425 |
Remote battery plant monitoring system
A system for monitoring performance of one or more batteries in a battery plant facility. A set of sensors for each battery are used to measure a plurality of battery operation parameters...
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6531876 |
Apparatus for voltage measurement
An apparatus for measuring the voltage of a plurality of voltage sources mounted in a stack includes a plurality of contact units, each having a plurality of electrical contacts mounted therein,...
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6477024 |
Fault determination apparatus and fault determination method for a battery set
By finding a voltage difference ΔV between the maximum value and the minimum value of voltage of each cell constituting a battery set and then combining the voltage difference ΔV with current I...
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6472880 |
Accurate voltage measurement system using relay isolated circuits
A system for measuring voltages of batteries in a battery pack. The system has an isolation circuit operative to isolate a voltage for each of the batteries. A buffer of the system is in electrical...
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