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7624292 |
Battery power detection device
A battery power detection device is disclosed that has a reduced circuit area and is able to achieve sufficiently high detection accuracy. The battery power detection device includes a temperature...
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7619394 |
Capacitor charger with a modulated current varying with an input voltage and method thereof
In a capacitor charger including a transformer having a primary winding connected with an input voltage and a secondary winding for transforming a primary current flowing through the primary...
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7619392 |
Method for verifying smart battery failures by measuring input charging voltage and associated systems
A method and associated system are disclosed for verifying charging failures for smart batteries by measuring input charging voltage and associated systems. In one embodiment, a determination is...
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7619391 |
Electrical appliance with battery protection
An electrical appliance, such as a power tool, has an electrical motor, a control circuit connected to the motor, and a rechargeable LI-ion battery pack for powering the motor via the control...
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7619390 |
Battery cell voltage and impedance measuring circuit
In general, in the circuit to measure and diagnose the cell post voltage and internal impedance in storage battery cells and find out their aging status, the impedance voltage signal which is...
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7616421 |
Electrical interface system
An interface system may be used to connect an electrical device to an electrical bus. The interface system may include a first end and a second end in electrical communication with the first end....
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7615968 |
Method and device for charging a battery at elevated temperatures
The present invention pertains to a method and device for charging a battery at elevated temperatures. More specifically the present invention pertains to a method and a device capable of using the...
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7615967 |
Method and apparatus of estimating state of health of battery
Disclosed is a method and apparatus of estimating a state of health (SOH) of a battery using internal resistance, which has been found to act as a parameter exerting the greatest influence on the...
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7615964 |
Rechargeable battery charging method
A method for charging a secondary battery with a constant current, in which a peak of output voltage is detected by utilizing a predetermined current value, and then the battery continues to be...
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7612537 |
Galvanically isolated charge balance system
A galvanically isolated charge balance system for a multicell battery includes a balancing circuit associated with each cell; each balancing circuit including a flying capacitor; a variable...
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7612524 |
Motor vehicle battery disconnect circuit having electronic disconnects
An electronic disconnect switch module ( 12 ) in a motor vehicle has one or more pairs of high-current, high-side solid state switch devices ( 30 A, 30 B, 32 A, and 32 B). The source terminal of...
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7610124 |
Control device for motor-driven vehicle
A control device for a motor-driven vehicle, the control device includes: a zone determining unit that determines at least a normal use zone, a discharge zone, an over-discharge zone, a charge...
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7605567 |
Battery protecting circuit and battery with such protecting circuit
A protecting circuit for a battery used to power an electronic system includes a control circuit and a sensing circuit. The sensing circuit includes a tri-axial accelerometer having X, Y and Z...
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7605566 |
Staggered backup battery charging system
A battery backup system includes a control device including a power sensing device, a discharge circuit, a charging circuit, and a plurality of battery packs. A lower threshold is established...
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7605565 |
Battery pack with protection circuit
A battery pack comprises a protection circuit adapted to detect an excessive current consumption condition associated with electronic components forming the battery pack.
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7605352 |
Method for sorting positive temperature coefficient (PTC) elements
In a method for sorting PTC elements having different resistance-temperature characteristics, a predetermined voltage that allows a current to sufficiently decay is applied to each of PTC elements...
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7602146 |
Protection methods, protection circuits and protection devices for secondary batteries, a power tool, charger and battery pack adapted to provide protection against fault conditions in the battery pack
In a cordless power tool system, protection methods, circuits and devices are provided to protect against fault conditions within a battery pack that is operatively attached to a power tool or...
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7598701 |
Battery pack and method for permanently disabling functions of a pirated battery pack
A battery pack and method are disclosed that permanently disable the battery pack on portable electronic equipment if the battery pack has been inauthentically remanufactured. An output voltage...
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7595610 |
Redundant battery protection system and method
An enhanced battery pack having an enhanced protection system addresses a potential weakness of the conventional protection system of a conventional battery pack. The enhanced protection system...
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7595609 |
Battery system power path configuration and methods for implementing same
A battery system may be provided with a battery charge current path that is different from the battery discharge current path of the battery system, for example, by providing no controlled charge...
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7595608 |
Gate driver for a battery pack
Apparatus, method and computer program product are provided for battery management. In one implementation, a method is provided. The method includes enabling determining if a charger is coupled to...
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7592815 |
Leakage detection circuit for electric vehicle
A leakage detection circuit for an electric vehicle includes a battery pack, first and second leakage detection switches, a controller, a leakage detection resistor, a voltage detector, and a...
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7592777 |
Current mode battery charger controller
A current mode charger controller for controlling a DC to DC converter. The current mode charger may include a first error amplifier having an output coupled to a common node. The first error...
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7589502 |
Charge and discharge control circuit with variable switching delay time function and charging-type supply device using the control circuit
A charging and discharging control circuit is provided in which a delay circuit is built in an over-discharge detector circuit, an over-charge detector circuit, or the like. A delay time of the...
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7589501 |
Apparatus and method for protecting secondary battery
The present invention relates to an apparatus for protecting a secondary battery by preventing overcharge of the secondary battery. The apparatus for protecting a secondary battery includes: a...
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7589500 |
Method and system for battery protection
A method of conducting an operation including a battery. The battery includes a cell having a voltage. Power is transferable between the cell and the electrical device. A controller is operable to...
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7589499 |
Over voltage transient controller
An over voltage transient controller to protect a rechargeable battery from an over voltage transient condition. The over voltage transient controller may comprise a comparator to compare a first...
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7583060 |
Protective circuit for a secondary battery pack and method of operating the same
A protective circuit for a secondary battery pack advantageously having a simple circuit configuration while maintaining the safety of banks in the circuit. Each protective circuit has banks...
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7583055 |
Information handling system capable of operating with a power adapter having a power rating lower than the information handling system's power rating
In response to detecting that a power adapter, having a first power rating lower than a second power rating of an information handling system (“IHS”), is coupled to the IHS and in response to a...
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7579842 |
Battery management apparatus
A battery management system includes a sensing module, a feeding module, a control module, and a common line adapted for connection to a battery when in use. In some embodiments, a battery...
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7579811 |
Battery pack, battery protection processing apparatus and control method thereof
It is aimed at stably implementing a protection function of a secondary battery mainly under software control and providing a battery pack characterized by a reduced circuit installation area,...
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7573233 |
Battery system configured to survive failure of one or more batteries
The battery system includes a battery pack having a plurality of power sources arranged in parallel groups that are connected in series. Each parallel group includes a plurality of power sources...
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7570022 |
Variable battery refresh charging cycles
A refresh control system that selectively initiates a refresh charge cycle includes an energy storage device and an electric machine that is operable to charge the energy storage device. A control...
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7570021 |
Rechargeable battery controller and method for controlling output of rechargeable battery
A rechargeable battery controller for controlling output of a rechargeable battery mounted on a vehicle having a power source including an internal combustion engine, a starter motor for starting...
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7570017 |
Rechargeable battery pack for a power tool including over-discharge protection
A battery pack for a power tool has a less-current consuming over-discharge protection. The battery pack includes a battery stack composed of a plurality of series connected secondary cells, and a...
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7568538 |
Children's ride-on vehicle charging assemblies with back feed protection
Battery charging assemblies for children's ride-on vehicles, and children's ride-on vehicles that include the same. The charging assemblies may include a power adapter that is adapted to be...
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7567116 |
Voltage converting circuit and battery device
A voltage converting circuit and a battery device, aimed at the problem that the breakdown voltage required for the driving input of the selected switch element is increased as the potential of the...
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7566828 |
Power source device and charge controlling method to be used in same
A power source device is provided which is capable of charging a secondary cell in a stable manner even in an environment in which power generated by a solar cell varies due to changes in sunlight...
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7564220 |
Method and electronic circuit for efficient battery wake up charging
A method for efficiently charging a battery. The method includes producing a first signal having a voltage level dependent on the voltage of the battery, comparing the voltage level of the first...
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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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7557540 |
Capacity measurement system for a battery with open circuit voltage detection
A method and system for measuring the remaining capacity of a battery with open circuit voltage detection is disclosed. The method includes the steps of measuring an open circuit voltage, obtaining...
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7554330 |
Method for determining the deterioration of a battery
This objective is achieved according to the present invention in that in a method for determining the deterioration of a battery, the charge and discharge cycles of the battery are measured by...
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7554300 |
Car power source apparatus
The car power source apparatus is provided with a plurality of batteries, a temperature detection circuit, and an abnormal temperature rise prevention circuit. The temperature detection circuit...
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7554291 |
Battery control system for a chargeable-and-dischargeable power supply system
In a chargeable-and-dischargeable power supply system, a plurality of battery cell sections are connected in series with one another, a plurality of cell state detecting sections are installed for...
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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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7551003 |
Current mirror circuit and constant current circuit having the same
A current mirror circuit includes a pair of first and second transistors having bases connected together and emitters connected to a power line, a resistor connected between the bases of the first...
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7550947 |
Battery state monitoring circuit and battery device
Provided are a battery state monitoring circuit in which charging of a secondary battery in an over-charge detection state is prevented to improve safety, and a battery device including the battery...
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7550945 |
Voltage measurement device
A voltage measurement device includes: a charging circuit 100 having a first switch group of semiconductor elements P 1 , P 2 for connecting voltages of respective blocks, into which a plurality...
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7545120 |
AC-DC adapter and battery charger integration for portable information handling systems
In a method and system for converting an alternating current (AC) input to a direct current (DC) output, an AC-DC adapter includes a rectifier module operable to receive the AC input and generate a...
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