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With detection of current or voltage amplitude

Subclass of:

320 - Electricity: battery or capacitor charging or discharging

320137000 - BATTERY OR CELL CHARGING

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Class / Patent application numberDescriptionNumber of patent applications / Date published
320163000 Having solid-state control device 81
Entries
DocumentTitleDate
20130026999BATTERY DEVICE - A battery device including a case, an elastic component, a metal coil, a magnetic component, at least one energy storage component and a rectifier voltage regulator circuit is provided. The case includes a first and a second electrode ends, and both the elastic component and the metal coil are disposed in the case. The magnetic component is disposed in a receiving space of the coil and connects to an end of the elastic element, and the energy storage component connects to the first and the second electrode ends in parallel. When the battery device moves back and forth along a direction, the elastic component extends or retracts to drive the magnetic component to move back and forth relative to the metal coil along this direction. Thereby, an electric energy is induced in the metal coil, and is then stored in the energy storage component after being rectified and voltage-regulated.01-31-2013
20090195219BATTERY SOC ESTIMATION PROGRAM, WIRELESS TRANSIT SYSTEM, AND METHOD OF CHARGING THE BATTERY - Occurrence of overcharging and over discharging of batteries mounted on vehicles that travel on predetermined tracks in a wireless transit system is prevented by estimating SOC of the batteries with accuracy. The program in which an equivalent circuit of the battery is set such that the equivalent circuit is composed of three circuit elements connected in series, a first component resistance which is influenced by instantaneous current variation, a component circuit consisting of a capacitance and a second component resistance connected in parallel which is influenced by slow and excessive response, and a terminal voltage of the battery, runs the computer to calculate open circuit voltage of the equivalent circuit using a value of the first component resistance calculated from measurement of current and voltage of the battery and value of k(=the second component resistance/the first component resistance) and τ(=the capacitance×the second component resistance) which are constant values specific to the battery determined based on measurements, and to calculate state of charge of the battery from the open circuit voltage.08-06-2009
20090121687Charging method and charging apparatus - A charging apparatus for charging a plurality of batteries has at least two modes including a first mode and a second mode, in which amounts of electricity to charge the batteries are set with reference to a fully charged capacity of the batteries. The apparatus includes mode selection means for selecting either of the first mode and the second mode. The first mode is a mode in which the batteries are charged until the batteries reach a fully charged state. The second mode is a mode in which the charging of the batteries is stopped before the batteries reach the fully charged state.05-14-2009
20090121686POWER SAVING CHARGER - A power saving charger comprises a switch circuit having an input end connected to an AC current source for turning on or turn off AC current; a switch driving circuit having an output end connected to the switch circuit for outputting signals to turn on or turn off the AC current of the switch circuit; a charging circuit connected to the output end of the switch circuit for converting AC current to DC current so as to charge to a battery of an external load; and a charge detection circuit connected to a charge output end of the charging circuit and a signal output end of the charging circuit for detection the completeness of the charge and detection of the existence of the load; and a signal output end of the charge detection circuit being connected to an signal input end of the switch driving circuit.05-14-2009
20100072956Low Power and Accurate Adapter-Current Detection Scheme for Dynamic Load Balancing - A charger provides a charging current to an information handling system battery by measuring current provided from an external power source using a Hall sensor. The Hall sensor is integrated into an integrated circuit of the charger to measure current provided by an external power source and output a voltage proportional to the measured current. The charger analyzes the external power source current relative to an available current to determine the charging current. The Hall sensor provides the total current from the charger with minimal resistance to reduce power consumption at the charger.03-25-2010
20130076314CHARGING CONTROL SYSTEM - A charging control system is configured to calculate an internal resistance line indicating a relation between a value of a charging current and a value of a voltage of a battery, which voltage occurs when the charging current has flown into the battery, to obtain a maximum inputtable value point S03-28-2013
20130033235POWER SUPPLY APPARATUS, CONTROL METHOD, AND RECORDING MEDIUM - A power supply apparatus includes a power supply unit that outputs power wirelessly to an electronic device and a setting unit that sets a first time and a second time. The first time includes a period of time that the power supply unit outputs the first power. The second time includes a period of time that the power supply unit outputs the second power.02-07-2013
20100045243ELECTRONIC DEVICE, CONTROL METHOD AND PROGRAM - Reduction of wasteful power consumption is envisaged. A power supply function-equipped electronic apparatus (02-25-2010
20090261786BATTERY CHARGE COMPENSATION - A battery charger and method for a rechargeable battery pack which includes various elements in series with the cells to be charged, including but not limited to current control FETs, a fuse, current sense resistor, and internal series impedance of the series connected cells to be charged. The charging current Ichg flowing through these series elements reduces the voltage applied to the cells, thus lengthening charging time. A compensation voltage Vcomp, which when added to the nominal charging voltage for the series connected cells overcomes these voltage drops, facilitates more efficient charging while avoiding over-voltage damage to the cells. Three voltages representing substantially all of the voltage drops reducing the charging voltage on the cells, are summed, and the result is a compensation voltage which is utilized to change the nominal charge voltage for the battery to overcome these voltage drops.10-22-2009
20120262126METHOD FOR INITIALIZING AND OPERATING A BATTERY MANAGEMENT SYSTEM - A method for initializing and operating a battery management system is disclosed. The method comprises the following steps. First, start the battery management system. Next, read battery variables which are stored in a nonvolatile memory of the battery and comprise the last state of charge of the battery. Then measure the open-circuit voltage of the battery. Next, determine an instantaneous state of charge value on the basis of the measured open-circuit voltage. Then determine an estimated value of the state of charge of the battery as a function of both the stored last state of charge of the battery and the instantaneous state of charge value. Then initialize the state of charge in the battery management system using the determined estimated value of the state of charge. Finally, operate the battery management system with the initialized values.10-18-2012
20130049704CHARGING APPARATUS AND CHARGING METHOD - According to one embodiment, a charging apparatus includes a charger, a controller, and a switch. The charger is configured to charge a battery. The controller is configured to control a charge of the battery performed by the charger such that the charge is stopped when a battery capacity reaches a first capacity at a first charge mode and stopped when the battery capacity reaches a second capacity lower than the first capacity at a second charge mode. The switch is configured to execute processing which is concerned with switching between the first charge mode and the second charge mode in accordance with a record on the battery capacity.02-28-2013
20130049703SYSTEMS AND METHODS FOR PROVIDING POWER TO A LOAD BASED UPON A CONTROL STRATEGY - Systems and methods are provided for an electrical system. The electrical system, for example, includes a first load, an interface configured to receive a voltage from a voltage source, and a controller configured to receive the voltage through the interface and to provide a voltage and current to the first load. The controller may be further configured to, receive information on a second load electrically connected to the voltage source, determine an amount of reactive current to return to the voltage source such that a current drawn by the electrical system and the second load from the voltage source is substantially real, and provide the determined reactive current to the voltage source.02-28-2013
20130069601ADDITIVE FOR LITHIUM ION RECHAGEABLE BATTERY CELLS - The present invention claims the addition of vinylene carbonate (VC) and optionally also fluoroethylene carbonate to the electrolyte of lithium ion cells having a structural silicon composite anode, i.e. an anode containing fibres or particles of silicon. The additive significantly improves the cycling performance of the cells. A VC content in the range 3.5-8 wt % based on the weight of the electrolyte has been found to be optimum.03-21-2013
20130069600METHOD AND SYSTEM FOR OPTIMIZING CURRENT LIMITING BEHAVIOR OF CHARGER - A method and system for optimizing the behavior of a charger connected to a portable device when the portable device current exceeds the charger current limit. The system includes a configuration module configured to set a maximum current limit and a register-based current limit values. The system further includes a port power switch configured to limit the portable device current, in the event that the portable device current exceeds the maximum current limit value. The port power switch is configures to modify the portable device current to a predetermined constant current value or reset the current to zero based on the relation between the maximum current limit and the register-based current limit value.03-21-2013
20130069599CHARGE CONTROL SYSTEM - A charge control system (03-21-2013
20120217935Circuits and Methods for Automatic Power Source Detection - Embodiments of the present invention include circuits and methods for sensing resistance. In one embodiment the present invention includes a method comprising detecting a voltage at an input of a regulator received from a power adapter, determining a maximum current capability of the power adapter, and charging a battery coupled to an output of the regulator using said detected voltage and said maximum current as inputs to said regulator. In one embodiment, the detected voltage is used to configure a voltage used to determine if or when a voltage received from a power adapter drops below some threshold.08-30-2012
20100085022Charging apparatus - A charging apparatus includes: a charging voltage output unit; a duty ratio setting unit; a PWM signal output unit; a reference voltage generation unit; a reference voltage limit unit; a detected voltage generation unit; and a charging voltage control unit. The reference voltage generation unit generates a reference voltage for determining whether or not a charging voltage has reached a target charging voltage, by smoothing a PWM signal outputted from the PWM signal output unit. The reference voltage limit unit limits at least one of a maximum value and a minimum value of the reference voltage generated by the reference voltage generation unit.04-08-2010
20090079398BATTERY OPERATED LED LAMP AND CONTROL - An LED lamp adapted for use as a bicycle light includes a lamp/switch module and a power supply/control module. The control includes a microcontroller that performs both light operating functions and battery charging control functions. A low battery warning is provided as a non-repeating, short sequence of flashes of the lamp.03-26-2009
20090267571Load current dependent reduction of charge battery current - Circuits and methods to charge batteries of a portable device simultaneously with supplying power to the device for its operation, using a power source with limited maximum current, as e.g. an USB port, have been achieved. The system invented relies upon digital control only. No direct sensing of the current required for the operation of the portable device is required. The control takes care that the sum of the charging current and of the current to run the portable device does not exceed the maximum allowable current of the power source. The current required to run the portable device has precedence over the charging current.10-29-2009
20110012564DC POWER TOOL WITH A SAFETY DETECTION DEVICE - A DC power tool having an interiorly provided lithium battery element and a charging switch includes a safety protection module to eliminate the risk of circuitry burn-out and other dangers resulting from connecting the power tool to a power supply with unmatched rated voltage and rated current when charging the power tool via use of an adapter.01-20-2011
20110012563FAST CHARGING OF BATTERY USING ADJUSTABLE VOLTAGE CONTROL - A battery cell charger for rapidly charging a lithium ion battery cell (or string of series-parallel connected cells) having a maximum battery cell voltage the battery cell charging system including: a circuit for charging the battery cell using an adjustable voltage charging-profile to apply a charging voltage and a charging current to the battery cell wherein the adjustable voltage charging-profile includes: a first charging stage with a constant first stage charging current and an increasing battery cell voltage with the first stage charging current provided until the first stage charging voltage is about equal to a first stage complete voltage less than the maximum battery cell voltage; one or more intermediate charging stages, each intermediate stage selected from the group consisting of one or more of an intermediate constant voltage stage that provides a decreasing charging current, an intermediate constant current stage that produces an increasing battery cell voltage, and combinations thereof; and a final charging stage with a constant final stage charging voltage about equal to an intermediate stage complete voltage and a decreasing final stage charging current with the final stage charging voltage provided until the final stage charging current reaches a desired charge complete level.01-20-2011
20090243555REMAINING BATTERY CAPACITY DISPLAY METHOD AND REMAINING BATTERY CAPACITY DISPLAY UNIT - A method of displaying a remaining battery capacity of a battery pack including battery cells, includes: monitoring at least voltage of the battery cells; outputting voltage information on the voltage; determining whether or not the battery pack is fully charged; when it is determined that the battery pack is fully charged, defining a lowest-voltage battery cell among the battery cells; estimating a charging rate of the lowest-voltage battery cell at a time when the battery pack is fully charged based on a charging rate map and the voltage information; calculating a correction coefficient for making a correction so that the estimated charging rate becomes a maximum value of the remaining battery capacity at a time when the remaining battery capacity is displayed; calculating a charging rate to be displayed, based on a charging rate at the time when the remaining battery capacity is displayed and the correction coefficient; and displaying the calculated charging rate on a display.10-01-2009
20090237035Circuit and method for detecting absent battery condition in a linear charger - A circuit and method for detecting absent battery condition in a linear charger apply a detecting signal onto an output terminal of the charger and monitor the output terminal to receive a detected signal. The capacitance at the output terminal is significantly different between the presence and absence of a battery connected to the output terminal, and it is thus available to determine from the detected signal, if no battery is connected to the output terminal.09-24-2009
20090009143OVERVOLTAGE PROTECTION - An overvoltage protection system capable of maintaining a high setting voltage of a battery charger while guaranteeing that cell voltage does not exceed a value limited by a threshold value. In one preferred embodiment, a battery set is a plurality of series-connected battery cells. A protection voltage measurement portion measures a cell voltage of each battery cell. A computation portion calculates an open circuit voltage of the battery set outputs a calculated voltage as a measurement voltage. An overvoltage setting portion stops charging of battery set when the value of the cell voltage of any one of the battery cells reaches a threshold value. A diagnostic voltage measurement portion measures an open circuit voltage of battery set to output measured voltage as a diagnostic voltage. A comparing circuit stops charging of the battery set based on comparison results of value of the measurement voltage and value of diagnostic voltage.01-08-2009
20130162222CHARGING CONTROL CIRCUIT - A charging control circuit includes a switch circuit, a charging circuit, a central processing unit (CPU), and an identification circuit including two monitoring points for being connected to a first or second electronic device, and a mechanical switch connected between the two monitoring points. When charging the first electronic device, the mechanical switch switches to a first state where a voltage drop is generated on the two monitoring points respectively, and the switch circuit is turned on. When charging the second electronic device, the mechanical switch switches to a second state where the connection between the two monitoring points is short circuit, and the switch circuit is turned off. The CPU enables the charging circuit when the switch circuit is turned on or off to provide power to the first or the second electronic device via the charging unit.06-27-2013
20110199058AGM BATTERY RECOVERY AND CAPACITY TESTER - A system for battery recovery and capacity testing, including a battery charger for charging a battery, a load test resistor and a control relay. The system also includes an electronic controller connected to the battery, load test resistor and the control relay, and further in communication with the battery charger, where the electronic controller controls the battery charger so as to allow the battery to be charged, and also allow the battery to be load tested. The electronic controller calculates the capacity of the battery in ampere-hours at the end of the load testing.08-18-2011
20110279093MOTHER BOARD ADAPTED TO RAPIDLY CHARGE HANDHELD MULTIMEDIA DEVICE - A mother board adapted to rapidly charge a handheld multimedia device including a controller, a rapid charging initiation unit, a connection port coupled to the handheld multimedia device, and a switching unit. The rapid charging initiation unit provides a first voltage ranging from 3.2 V to 11 V and a second voltage ranging from 2.7 V to 0.6 V. A voltage difference between the first voltage and the second voltage ranges from 0.5 V to 0.8 V. The switching unit is coupled to the controller, the rapid charging initiation unit, and the connection port for determining whether the connection port is coupled to the controller or the rapid charging initiation unit. When the connection port is coupled to the rapid charging initiation unit, the first and the second voltage are sent to the handheld multimedia device through the connection port for activating a rapid charging function.11-17-2011
20110279094FULL CHARGE CAPACITY CORRECTION CIRCUIT, CHARGING SYSTEM, BATTERY PACK AND FULL CHARGE CAPACITY CORRECTION METHOD - A full charge capacity correction circuit including: an integrating unit that calculates an integrated current value of a rechargeable battery; a capacity storing unit that stores a full charge capacity value of the rechargeable battery; a first estimating unit that estimates a storage ratio of the rechargeable battery, which is a ratio of a quantity of stored electricity to an actual full charge capacity, as a first storage ratio when an estimable condition which is a condition that enables to estimate the storage ratio is satisfied; a second estimating unit that estimates a storage ratio when the estimable condition is satisfied after the first storage ratio is estimated, as a second storage ratio; a full charge capacity correction unit that estimates a new full charge capacity value of the rechargeable battery based on a difference integrated value that is an integrated value integrated by the integrating unit for a period after the first storage ratio is estimated and until the second storage ratio is estimated by the second estimating unit and on a ratio of a difference between the first storage ratio and the second storage ratio to 1, and stores the estimated new full charge capacity value in the capacity storing unit; an open circuit ratio estimating unit that uses a condition in which the rechargeable battery is in an open circuit state, as the estimable condition, and estimates the storage ratio based on a terminal voltage of the rechargeable battery when the estimable condition is satisfied; and a correction control unit that uses the open circuit ratio estimating unit as the first estimating unit or the second estimating unit.11-17-2011
20110140675Charging device for different batteries - A battery charging device includes one or more current control converting circuits connected to a voltage stabilization circuit for controlling the charging current through the rechargeable batteries of different voltages or currents or types, one or more protection converting circuits or overcharging protection circuits for protecting the batteries from being overcharged, one or more uninterrupted and reverse charging prevented circuits for protecting the batteries from being charged backwardly, and one or more charging state instruction circuits for indicating the charging status of the batteries and for allowing the different types of rechargeable batteries to be charged with a single charging device.06-16-2011
20080315845Battery Full-Charge Detection for Charge-and-Play Circuits - The present invention relates to a battery charge circuit (12-25-2008
20090206800Electronic Device and Connector Fitting Method - An electronic device (08-20-2009
20120105013APPARATUS OF SOC ESTIMATION DURING PLUG-IN CHARGE MODE - A system and method for estimating parameters of a rechargeable energy storage system during a plug-in charge mode include reading a first measured voltage and a measured current from the rechargeable energy storage system while charging the rechargeable energy storage system during a plug-in charge mode, interrupting the charge to stop current flow to the rechargeable energy storage system for a predetermined period of time, reading a second measured voltage during the charge interrupt, calculating a resistance based on the first measured voltage, the second measured voltage and the measured current, calculating an open circuit voltage of the rechargeable energy storage system based on the resistance, the second measured voltage, the measured current and determining the state-of-charge for the rechargeable energy storage system using the open circuit voltage.05-03-2012
20110285360Energy-Saving Charger - An energy-saving charger comprises: an AC power input terminal, a power-off switch, a power convertor, a DC output charging terminal, a detection and control device, and a charging-control switch. The detection and control device can detect the charging state, and when the electric appliance or battery is done charging, the detection and control device will cut off the power supply to stop the charging of the battery by turning off the power-off switch, thus providing an energy-saving charging mode.11-24-2011
20110285359Charging Method And Charging Device For Charging A Rechargeable Battery - A charging method fit for use with and applicable to a rechargeable battery is provided. The charging method involves charging the rechargeable battery to a first preset voltage and then charging the rechargeable battery to a second preset voltage. The charging method includes the steps of: (a) using the first preset current as a charging current, and performing the constant current charging of the rechargeable battery by the first preset current until the rechargeable battery reaches the first preset voltage for the first instance; (b) subtracting a current difference value from the charging current used by the rechargeable battery to reach the first preset voltage in the preceding instance so as to obtain a new charging current, and performing the constant current charging of the rechargeable battery by the new charging current thus obtained until the rechargeable battery reaches the first preset voltage again; (c) repeating step (b) until the new charging current equals a second preset current; and step (d) using the second preset current of step (c) as another new charging current, and performing the constant current charging of the rechargeable battery by the second preset current until the rechargeable battery reaches a second preset voltage for the first instance.11-24-2011
20120098502VEHICLE POWER-GENERATION CONTROL APPARATUS - In a vehicle power-generation control apparatus provided with a normal power generation control means that performs power-generation control of an electric power generator in such a way that an estimated charging rate of an electric storage device coincides with a target charging rate, in the case where the estimated charging rate of the electric storage device is lower than the target charging rate, and a regenerative power generation control means that performs power-generation control of the electric power generator during a period in which the speed of a vehicle is being reduced and fuel supply to an internal combustion engine is stopped, there is provided a regenerative charging amount prediction means that predicts a regenerative charging rate in accordance with a vehicle speed, when the vehicle speed is being reduced; the target charging rate of the electric storage device is decreased as the regenerative predicted charging amount obtained by the regenerative charging amount prediction means increases; and the regenerative power generation control means limits a power-generation amount toward reduction in such a way that in the electric power generator, a difference between torque required for power generation at a time when the electric storage device is charged and torque required for power generation at a time when the electric storage device is not charged falls within a predetermined torque difference.04-26-2012
20090140699METHOD AND APPARATUS FOR CHARGING A BATTERY - Portable, battery powered audio playback apparatuses are abundantly available. More and more of these apparatuses have built-in rechargeable batteries. It takes a long time to recharge these batteries. A user may not always need the full amount of power that can be provided by a fully charged battery, but only the amount enough for rendering and reproduction of a limited amount of multimedia data objects. With current art devices, it is difficult to determine when—after which amount of charging time—the battery has enough energy to render a selection of multimedia data objects. Therefore, the invention provides an indicator that indicates during and/or after charging that the battery comprises enough energy to render selected multimedia data objects.06-04-2009
20090189571HIGH EFFICIENCY CHARGING CIRCUIT AND POWER SUPPLY SYSTEM HAVING SUCH HIGH EFFICIENCY CHARGING CIRCUIT - A charging circuit includes a main power circuit, a DC-to-DC converting circuit, a detection circuit and a controller. The main power circuit is electrically connected to a power source for converting an input voltage from the power source into a first voltage. The DC-to-DC converting circuit is electrically connected to the main power circuit for converting the first voltage into a second voltage to charge the energy storage element. The detection circuit is electrically connected to the main power circuit and the DC-to-DC converting circuit for detecting a terminal voltage of the energy storage element and the first voltage from the main power circuit, thereby generating a feedback signal. The controller is electrically connected to the detection circuit and the main power circuit for controlling operations of the first switching element in response to the feedback signal, so that the first voltage is adjustable according to the second voltage.07-30-2009
20090189570Vehicle control system capable of controlling electric-power generation state of vehicle alternator - A vehicle control system has a battery, a vehicle alternator for charging the battery, a vehicle-alternator control device capable of controlling the vehicle alternator, and a battery current detection device. The battery current detection device has a battery current detecting means capable of detecting a charging/discharging current of the battery, a battery voltage detection means capable of detecting a voltage of the battery, a battery temperature detection means capable of detecting a temperature of the battery, a microcomputer, and a communication controller. The communication controller performs digital data communication to transfer digital control signals between the vehicle alternator and the battery current detection device. The vehicle alternator has a display unit to display the occurrence of abnormal information of those detection means transferred from the battery current detection device, the occurrence of a battery failure, and a disconnecting of a charging wire of the battery by using different display patterns.07-30-2009
20090200990Interchangeable Accumulator Unit - Provision is made for an interchangeable accumulator unit comprising a housing (08-13-2009
20100283433CHARGE EQUALIZATION APPARATUS WITH PARALLEL CONNECTION OF PRIMARY WINDINGS OF MULTIPLE TRANSFORMERS - The present invention relates, in general, to a charge equalization apparatus for batteries and, more particularly, to a charge equalization apparatus, in which the primary windings (M11-11-2010
20100039071BATTERY CHARGER CAPABLE OF SELECTIVELY PERFORMING A PARTIAL OR FULL STATE-Of-HEALTH EVALUATION ON A BATTERY BASED ON THE HISTOR OF THE BATTERY - A rechargable battery with an internal microcontroller. The microcontroller contains a memory in which data regarding the environment to which the battery is exposed are stored. These data are read by a processor integral with the charger used to charge the battery. If these data indicates the battery may have been subjected to a harsh environment, such as being exposed to an excessive temperature, the charger performs a fulle state of health evaluation of the battery.02-18-2010
20100013442CHARGING SYSTEM, ELECTRONIC CIRCUIT DEVICE INCLUDING SECONDARY CELL, AND POWER SUPPLY DEVICE FOR CHARGING - Provided is a charging system wherein a voltage and a current can be accurately supplied from a power supply device even with a cable wiring resistance and a connector contact resistance, and the power supply device can be commonly used even for a plurality of kinds of electronic circuit devices whereupon different secondary cells are mounted. The charging system is provided with an electronic circuit device (01-21-2010
20100123438ELECTRIC VEHICLE AND ELECTRIC VEHICLE SECONDARY BATTERY CHARGE METHOD - An electric vehicle includes a secondary battery which performs charge from an external power source and travels by using power of the secondary battery. The electric vehicle further includes: a charging unit which charges the secondary battery with power supplied by connecting a charge plug to the external power source; and a control unit which performs information acquisition or control for respective constituent elements. The control unit acquires a remaining capacity value from the secondary battery upon charge. When the control unit judges that a high charge capacity state continues a predetermined number of times, the control unit performs charge up to a charge capacity lower than a full electric capacity amount. This can suppress degradation of the secondary battery by charge.05-20-2010
20110148363METHOD FOR USE WITH A VEHICLE BATTERY PACK - A method for use with a vehicle battery pack, where the method determines a voltage threshold that may prevent the vehicle battery pack from being overcharged. The voltage threshold may be a dynamic threshold that changes or adjusts over time in order to accommodate changing conditions in the vehicle battery pack, the vehicle and/or the surrounding environment. The method may consider one or more battery readings when determining the voltage threshold, including temperature, voltage and/or current readings. According to one embodiment, the method is designed to accommodate high-current, short-duration charging events, like regenerative breaking.06-23-2011
20090140700Multi-mode charging system for an electric vehicle - A method and apparatus that allows the end user to optimize the performance of an all-electric or hybrid vehicle and its charging system for a desired mode of operation is provided. The system of the invention includes multiple charging/operational modes from which the user may select. Each charging/operational mode controls the cut-off voltage used during charging and the maintenance temperature of the battery pack.06-04-2009
20110199057Battery protection circuit and method for energy harvester circuit - Power management circuitry (08-18-2011
20090273320CONTROLLING BATTERY CHARGING BASED ON CURRENT, VOLTAGE AND TEMPERATURE - Some embodiments of the present invention provide a system that charges a lithium-ion battery. During operation, the system monitors: a current through the battery, a voltage of the battery, and a temperature of the battery. Next, the system uses the monitored current, voltage and temperature to control a charging process for the battery. In some embodiments, controlling the charging process involves: inferring electrode lithium surface concentrations for the battery from the monitored current, voltage and temperature; and applying the charging current and/or the charging voltage in a manner that maintains the inferred electrode lithium surface concentrations for the battery within set limits.11-05-2009
20090278508METHOD AND APPARATUS FOR CHARGING BATTERIES - A method for charging batteries, in particular lithium batteries, includes the steps of connecting a battery electrically to a battery-charging apparatus, dispensing electric power to the battery by means of the battery-charging apparatus, and regulating the electric current and voltage dispensed by the battery-charging apparatus to the battery. The regulating step includes the steps of detecting the voltage at the terminals of the battery and regulating the voltage dispensed by the battery-charging apparatus, during a phase of constant-voltage battery charging, depending on the voltage detected at the terminals of the battery, to compensate for parasitic voltage drops existing between the battery (11-12-2009
20090278507CHARGING METHOD AND DEVICE - A charging method for a battery includes: enabling a charging device to charge the battery with a first charging voltage having a value that is increasing and a first charging current having a value that is constant; and when it is determined that the value of the first charging voltage is equal to a maximum charging voltage value of the battery, enabling the charging device to charge the battery with a second charging voltage having a value that is equal to a maximum charging voltage value of the battery, and a second charging current having a value that is decreasing. A charging device for realizing the charging method is also disclosed.11-12-2009
20100127669CONTROL DEVICE AND CONTROL METHOD FOR ELECTRIC SYSTEM - In an electric system including a first converter and a second converter connected in parallel, an ECU executes a program including a step of selecting a charging mode for a first battery pack connected to the first converter and a charging mode for a second battery pack connected to the second converter, and a step of controlling a charger connected to the first battery pack, the first converter and the second converter to charge the first battery pack and the second battery pack in the selected charging modes.05-27-2010
20110199059CHARGING SYSTEM AND BATTERY PACK - A charging voltage or an overcharge determination value for determining an overcharge state is set taking into consideration the states of secondary battery cells of a battery pack during charging. Charging of the secondary battery cells is then carried out using charging voltages set taking into consideration the states of the secondary battery cells. It is then determined whether or not the secondary battery cells are in an overcharged state using overcharge determination value is set taking into consideration the states of the secondary battery cells.08-18-2011
20110204853POWER STORAGE SYSTEM - A power storage system controls a charging mode in which an assembled battery including a plurality of battery modules is charged. The assembled battery is charged through a constant current control based on a predetermined current value in the beginning of the charging mode and is charged through a constant voltage in the end of the charging mode. A determination part determines whether an apparatus electrically connected to an electric power line which the power storage system is electrically connected is in active. A controlling part constantly controls the current value for charging the assembled battery in the charging mode. In a case where the determination part determines that the apparatus is not in active, the controlling part sets the constant current value to a first current value at the beginning of a time period in which the charging mode is performed. In a case where the determination part determines that the apparatus is in active, the controlling part sets the constant current value to a second current value lower than the first current value in the beginning of the time period.08-25-2011
20080246442Overvoltage Protection Utilized When A Battery Is Removed From A System - A system and method are provided for safely recharging a battery. A current source is coupled to a node and configured to produce a current. The battery is coupled to the node, and is configured to recharge during a recharging cycle based on receiving the current through the node. An overvoltage protection system is coupled between the node and the current source, and configured to disable the current source when a voltage at the node exceeds a threshold value. For example, the current source may be substantially instantaneously disabled when this occurs.10-09-2008
20080284382CHARGING CONTROL CIRCUIT - A primary cell and a secondary cell are distinguished from each other. A microcomputer of a digital camera determines a first cell (a primary cell) and a second cell (a secondary cell) as a built-in cell. When a dedicated charging device is connected to a digital camera, a microcomputer activates transistor switches to thus detect a terminal voltage of the second cell. When the terminal voltage shows a finite value, the second cell is determined to be incorporated. When the terminal voltage shows a value of essentially zero, the transistor switch is activated to thus apply a predetermined voltage. When a voltage drop attributable to a resistor has arisen, the second cell is determined to be overcharged. When both a terminal of the second cell and a terminal of the first cell show finite values, a short circuit is determined to have arisen.11-20-2008
20080290840Power dissipation limiting for battery chargers - Methods, systems, and apparatuses for charging a battery in a mobile device are described. In embodiments described herein a power supply voltage and/or a power supply current of a power supply coupled to charger of the mobile is reduced. The reduction in power supply voltage and/or current results in a reduction in heat dissipation and power dissipation by the charger.11-27-2008
20100201328CHARGEABLE MOBILE SECURITY SYSTEM - A security system with an internal chargeable power source is provided. The chargeable power source may be charged using techniques that may reduce dependence on external power sources. Such a security system may therefore be suitable for a wide range of applications including those with no readily available external power sources. For some embodiments, the security system generally includes surveillance equipment, a battery powering the surveillance equipment, a diesel engine-generator set (gen-set) for charging the battery, and control logic configured to control the charging of the battery by the diesel gen-set based on the output voltage of the battery.08-12-2010
20130119947STORAGE BATTERY CONTROL DEVICE, CHARGING STATION, AND STORAGE BATTERY CONTROL METHOD - The battery charging of electric vehicles, etc. is controlled so that the impact on the electric power system is lightened even when a lot of electric vehicles, etc. start the charging all at once. A device for controlling an electricity storage device installed in an electric vehicle or the like calculates a voltage drop by applying a load current at the time of performing the charging of the electricity storage device, and limits the charging quantity of the storage battery (installed in the electric vehicle or the like) based on the calculated voltage drop so that the voltage drop of the electric power system remains less than a prescribed level. Consequently, it becomes possible to reduce the voltage fluctuation around each of the electric vehicles, etc. that is about to execute the charging in cases where a lot of electric vehicles, etc. start the charging all at once.05-16-2013
20120105014FULL CHARGE CAPACITY VALUE CORRECTION CIRCUIT, BATTERY PACK, AND CHARGING SYSTEM - A full charge capacity value correction circuit, has: a current detection portion which detects a current value of current flowing in a secondary battery; a voltage detection portion which detects a terminal voltage value of the secondary battery; a capacity storage portion which stores a full charge capacity value indicating a full charge capacity of the secondary battery; a remaining quantity calculation portion which calculates, as a accumulated remaining quantity, a remaining charging quantity in the secondary battery from a total value obtained by cumulatively adding charged electrical quantities and subtracting discharged electrical quantities in the secondary battery, based on charge/discharge currents of the secondary battery detected by the current detection portion; a remaining quantity estimation portion which estimates, as an estimated remaining quantity, a remaining quantity of the secondary battery by using a terminal voltage value detected by the voltage detection portion; and a full charge capacity value correction portion which, when an estimated remaining quantity estimated by the remaining quantity estimation portion becomes equal to a reference value set in advance, in a case where the estimated remaining quantity is greater than the accumulated remaining quantity, adds a difference electrical quantity, which is equivalent to a difference between the thus estimated remaining quantity and accumulated remaining quantity calculated by the remaining quantity calculation portion, to the full charge capacity value stored in the capacity storage portion, but in a case where the estimated remaining quantity is less than the accumulated remaining quantity, subtracts the difference electrical quantity from the full charge capacity value stored in the capacity storage portion.05-03-2012
20100141219BATTERY PROTECTION CIRCUIT - A battery circuit includes a monitoring circuit, an integrator circuit, and a comparator. The monitoring circuit can be used to monitor a cell and generate a monitoring signal indicating a cell voltage of the cell. The integrator circuit accumulates a difference between the monitoring signal and a first predetermined threshold over a time period to generate an integrating output. The comparator compares the integrating output to a second predetermined threshold and generates a control signal.06-10-2010
20100141218CHARGING CIRCUIT - A charging circuit that prevents a system abnormality caused by removal of a battery. The charging circuit includes a constant voltage charge controller which detects charge voltage and performs a constant voltage charging operation. A constant current charge controller detects charge current and performs a constant current charging operation. A controller controls the constant voltage charge controller to perform the constant voltage charging operation during a period from when the charge voltage reaches a fully charged voltage to when the charge current decreases to a charge completion current. The controller suspends charging the battery when the constant voltage charging operation is being performed and detects whether or not the battery is coupled to the charging circuit based on the charge voltage during the charging suspension.06-10-2010
20090184687Method and Apparatus for Battery Charging Based on Battery Capacity and Charging Source Constraints - A battery charging circuit sets charging current according to either the capacity of the battery under charge or a constraint of the charging source, depending on the properties of the charging source. The battery charging circuit sets termination current, however, according to the capacity of the battery under charge, regardless of the properties of the charging source. For example, the termination current may be set as a fixed fraction of the recommended C rate of the battery even if the charging current supplied by the charging source is below this C rate. Always setting the termination current in proportion to the battery's capacity permits detection of the current at which charging should terminate even when the charging current is constrained by the charging source and no longer depends on the battery's capacity.07-23-2009
20090184688CHARGING APPRATUS AND METHOD FOR MOBILE TERMINAL - A charging apparatus and method for a mobile terminal are provided. The apparatus and method charge a battery by identifying a charger and operating in an operation mode corresponding to the identified charger. If the mobile terminal is connected to a charger via an outer connector in order to charge the internal power source of the mobile terminal, power and a configuration signal are input from the charger, a logic characteristic is output by using the received configuration signal, and thus the charger can be exactly identified according to the power and the configuration signal. Also, since the internal power source of the mobile terminal is charged through the exactly identified charger, the internal circuit of the mobile terminal or battery can be prevented from being damaged by unstable power of the charger.07-23-2009
20120068668Battery Module For High-Current Rapid Charging - A high-current rapid charging battery module for an electric vehicle including a case, one or more battery cells inside the case, a ventilation system that draws air upward through holes in the bottom of the case from the exterior of the vehicle, massive copper busbars, each busbar electrically connecting a positive lead on one battery cell to a negative lead on a different battery cell, an air flow cartridge between each pair of adjacent battery cells, and one or more fans arranged on top of one or more cells that blow air drawn upward through the holes in the bottom of the case away from the top of the battery module.03-22-2012
20090051327CHARGER SYSTEM FOR COMMUNICATION DEVICES - A charger system (02-26-2009
20090096426GENERATOR CONTROLLER - A generator controller, in its various embodiments, displays genset fault messages, a genset elapsed time hour meter, service countdown reminder, monitors battery voltage changes over multiple periods of time to establish and display the “battery level,” uses the “battery level” to automatically start and stop the genset, and accepts multiple run requests from AC loads such as HVAC systems, and incorporates safety or other start inhibit features.04-16-2009
20090096427Apparatus for detecting end-of-charge for a battery charger - An apparatus and method for accurate end-of-charge (EOC) detection in a battery charger is provided. An EOC circuit determines that a battery has been fully charged when two conditions are met. The first condition for EOC detection is that the battery has reached a predetermined voltage and, as a result, the battery charger has transitioned to a constant voltage phase of the charging process. The second condition for EOC detection is that the battery current has fallen below a predetermined, set level. When both of these conditions are met, EOC is detected. This bi-condition EOC detection scheme is capable of accurate EOC detection, i.e. determining when the battery is fully charged.04-16-2009
20090096428Battery charging method and device thereof - A battery charging method and device thereof are disclosed. The method includes the following steps. First, a charging current is supplied into a plurality of cell blocks of a battery module for charging, and the terminal voltages of the cell blocks are detected, when one of said terminal voltages exceeds a first threshold, the charging is kept continuously over a first preset time period. If one of said terminal voltages of said cell blocks exceeds a second threshold, an over voltage protection is performed, else the charging current is reduced and the battery module is charged by the reduced charging current continuously over a second preset time period and if the cell blocks are determined that they are fully charged, the charging is stopped, otherwise, the battery module is charged continuously. Therefore, the battery charging method and device thereof in accordance with the present invention can prevent the battery module from being overcharged and prolong its life.04-16-2009
20090184689METERING SYSTEM AND METHOD OF OPERATION - A metering system for measuring the electrical power used to charge a vehicle is provided. The metering system includes an electrical meter operably coupled to a conductor connected to the vehicle and an electrical outlet. A controller receives signals from the meter to record the measured electrical consumption. The controller includes a plurality of communications devices for communicating with different communications carriers. In one embodiment, the controller selects one of the communications devices based on availability and a desired criterion. The selected communications device then transmits the measured electrical power consumption to a utility provider. In one embodiment, the metering system is mobile.07-23-2009
20090102431Universal serial bus charger circuit and charging method - The present invention discloses a universal serial bus (USB) charging circuit, comprising: a charging path for charging a battery from a USB host; a charging switch located on the charging path; a current sensing circuit for sensing current information on the charging path; a maximum available current detection circuit for detecting the maximum available current from the USB host; and a loop controller circuit for controlling the charging switch so that the charging current on the charging path is substantially equal to the maximum available current detected by the maximum available current detection circuit, wherein the maximum available current detection circuit detects the maximum available current during circuit initialization and stores it.04-23-2009
20090102430D.C./D.C. Converter-Regulator - A converter-regulator of a D.C. voltage into a D.C. voltage intended to connect a fuel cell to a filter capable of being connected to means of electrochemical storage of electric power in a charge operation of the storage means. The converter-regulator includes means capable of maintaining, during the charge operation, the voltage across the fuel cell at a given working voltage.04-23-2009
20090102429Input source detection for a battery charger - A system and method for determining if a USB port can source sufficient current to charge a rechargeable battery at a predetermined peak current level. Detection circuitry is disposed between the USB port and the battery. The detection circuitry includes a current source that is controlled to provide to the battery an increasing current that is sourced by the USB port. As the source current is increased from an initial value to a predetermined peak current source value, the output voltage of the USB port is monitored. If the USB port output voltage drops below a specified threshold voltage before the current source has ramped to the peak current source value, the load current is removed from the battery and an indication is provided that the USB port cannot provide the specified current. The detection process is then repeated after a specified delay interval. If the current source ramps up to the peak source current value and the USB port voltage has not decreased below the specified threshold voltage, charging of the rechargeable battery from the USB port continues at the peak source current.04-23-2009
20090212744System for use in gathering or processing data in a healthcare facility having fleet of mobile workstations - A system for use in gathering and/or processing data in healthcare facilities includes a fleet of mobile workstations, a set of interchangeable batteries for the fleet of mobile workstations and a battery recharging system for the set of interchangeable batteries. The battery recharging system includes a common battery charger and a control device configured to reduce variation in charging cycle count among the batteries at least in part by outputting a battery selection signal in response to comparing charging cycle counts for each of the batteries.08-27-2009
20090108814Battery Switch Sensor - The invention relates to a battery switch for use in a multi-battery vehicle to selectively connect or isolate batteries from each other. It includes a detector to monitor the voltage of at least a first battery to detect consistently present transient voltages and on detection of such voltages to connect or maintain connected the battery to at least a second battery. The detector monitors the continuance of transient voltages and additionally monitors the voltage of at least the first and second battery, and isolates the batteries from each other where the voltage of either battery falls below a specified voltage despite the detection of transient voltages at the first battery. The invention also relates to a method of initiating the interconnection or disconnection of at least two batteries on a single vehicle, and to a method of detecting the existence of a charging supply on a supply line to an open battery isolating switch.04-30-2009
20090212745METHOD FOR BATTERY CHARGING BASED ON COST AND LIFE - One embodiment of the present subject matter includes a system that includes a battery, an electric vehicle, the battery coupled to the electric vehicle to propel the electric vehicle, and a charging circuit to charge the battery. The embodiment includes a charging cost circuit to estimate a charging cost rate and to turn on the charging circuit. The embodiment also includes a timer circuit to provide a time signal to the charging cost circuit. The embodiment is configured such that the charging cost circuit is to turn on the charging circuit during a first time period in which the charging cost rate is below a first threshold until the battery reaches a first energy stored level, and to turn on the charging circuit during a second time period in which the charging cost rate is above the first threshold.08-27-2009
20090273319HANDHELD DEVICE WITH FAST-CHARGING CAPABILITY - A handheld device with a fast-charging capability is adapted to be connected to a charger to obtain an electric power. The handheld device includes a battery, a charging circuit, a safety circuit, a control unit, and an input module. The charging circuit is electrically connected to the charger and transfers an electric power to the battery. The safety circuit is used for restricting an upper limit of the electric power transferred by the charging circuit. The input module is provided for a user to input an emergency charge command. Upon receiving the emergency charge command, the control unit instructs the safety circuit to lower the restriction on the charging circuit, so as to raise the upper limit of the electric power that can be obtained by the charging circuit, thereby accelerating the charging of the battery.11-05-2009
20090243553METHOD AND SYSTEM FOR POWER AND CHARGING CONTROL IN A BLUETOOTH HEADSET - Methods and systems for power and charging control in a Bluetooth headset are disclosed and may include measuring a load current during charging of batteries in a mobile device. A completion time of the charging may be predicted. The charging may be terminated based on a sum of the load current and a known charge complete threshold current of the batteries, which may include lithium batteries. A current or voltage source may be controlled for the charging. A current from the current source may be compared to the sum via a current comparator. A rate of charging may be controlled for charging to a desired end voltage based on the predicted completion time. A user preference based on the predicted completion time may be stored, where the user preference may be utilized to control one or more subsequent charges.10-01-2009
20090256528DIFFUSION-LIMITED ADAPTIVE BATTERY CHARGING - Some embodiments of the present invention provide a system that adaptively charges a battery, wherein the battery is a lithium-ion battery which includes a transport-limiting electrode governed by diffusion, an electrolyte separator and a non-transport-limiting electrode. During operation, the system determines a lithium surface concentration at an interface between the transport-limiting electrode and the electrolyte separator based on a diffusion time for lithium in the transport-limiting electrode. Next, the system calculates a charging current or a charging voltage for the battery based on the determined lithium surface concentration. Finally, the system applies the charging current or the charging voltage to the battery.10-15-2009
20100259227METHOD AND SYSTEM FOR CONTROLLING CURRENT FLOW THROUGH A POWER DISTRIBUTION CIRCUIT - A method for controlling a current flow through a power distribution circuit includes determining a current flow through a load electrically connected with the power distribution circuit, and a wire gauge of the power distribution circuit based on a measured output current and output voltage of the power distribution circuit. The method also includes controlling the output current based on the current flow through the load and the wire gauge.10-14-2010
20100194353RV CONVERTER WITH CURRENT MODE AND VOLTAGE MODE SWITCHING - A switched mode converter is disclosed that includes both voltage mode and current mode control. The switched mode converter also includes mode logic for switching between a voltage mode and a current mode. The converter includes current sensing circuitry for sensing the switcher current on the primary side of the transformer and the load current on the secondary side as well as voltage sensing circuitry for sensing the converter output voltage. When the load current is less than a predetermined value, the converter operates in a voltage mode. During the voltage mode, the output voltage of the voltage mode controller is used to control the duty cycle of a pulse width modulation (PWM) controller. When the load current is greater than a predetermined value, the converter operates in a current mode. In a current mode, the primary switcher current is used to control the PWM controller. As such, during a light load in which the converter is voltage controlled, there is no need for a minimum load to stabilize the control loop. In a current-mode, the control loop will have a relatively faster transient response and avoid flux imbalance in push-pull topology. As such, the converter provides the advantages of both known voltage controlled and current controlled switched mode converters. In addition, by the careful arrangement of the locations of a EMC filter, a primary heat sink, a secondary heat sink, a power transformer T08-05-2010
20100259228ELECTRONIC DEVICE AND POWER CHARGING SYSTEM THEREOF - A power charging system includes an embedded controller (EC), a control integrated circuit (IC), a current charging IC, and a power converter. The embedded controller outputs a pre-charging signal, a first charging signal, and a second charging signal according to the electricity quantity of the rechargeable battery. The control IC controls a plurality of switches to be on or off to generate a configuration of a plurality of configurations according to the received pre-charging signal, the received first charging signal, and the received second charging signal and correspondingly generates a voltage value according to the configuration. The current charging IC receives the voltage value and outputs a control signal. The power converter converts a direct current outputs to a charging current with a specific value according to the received control signal.10-14-2010
20130214744APPARATUS AND METHOD FOR DISPLAYING STRENGTH OF POWER AND EXPECTED CHARGE COMPLETION TIME DURING WIRELESS CHARGING - Provided is an apparatus and method for displaying a strength of power and an expected charge completion time during wireless charging. To this end, a first electronic device, upon receiving a power request message, converts stored or wirelessly supplied power into a wirelessly-transmittable form and transmits the converted power. A second electronic device, upon receiving a charging command, determines whether being located in a distance and a position which allow charging with the first electronic device, transmits the power request message to the first electronic device, receives the converted power from the first electronic device to measure the strength of the received power, and calculates an expected charge completion time by using the detected strength of power, if the second electronic device is located in the distance and position which allow charging.08-22-2013
20100001695Charging Control Apparatus and Charging Apparatus - A charging control apparatus comprising: a voltage control unit in a charging apparatus configured to control generation of an output voltage and a power supply voltage, the charging apparatus being an apparatus configured to generate, from a voltage of an input power supply applied through a relay, the output voltage for charging a battery and the power supply voltage for control; and a relay control unit operated by the power supply voltage, the relay control unit configured to drive the relay so as to stop applying the voltage of the input power supply to the charging apparatus, when detecting a standby state in which the battery is not being charged, and drive the relay so as to increase the power supply voltage by applying the voltage of the input power supply to the charging apparatus, when the power supply voltage decreases below a predetermined level.01-07-2010
20100253292SECONDARY LITHIUM ION CELL OR BATTERY, AND PROTECTING CIRCUIT, ELECTRONIC DEVICE AND CHARGING DEVICE OF THE SAME - The present invention provides a new method for improving capacity, average operating voltage and specific energy of a secondary lithium ion cell or battery. This method is achieved by means of properly adjusting the ratio between a positive material and negative material, which is calculated by theoretical specific energy, and properly increasing charge cut-off voltage. The present method can greatly increasing specific energy and average operating voltage of a secondary lithium ion cell without influence on recycle property of the cell. The present invention also provides a secondary lithium ion cell or battery practicing the method, a protecting circuit adapted for the secondary lithium ion cell or battery, a electronic device using said protecting circuit and said secondary lithium ion cell or battery, and a charging device for the secondary lithium ion cell or battery.10-07-2010
20110006741BUILDING AND POWER STORING METHOD - A building includes: a plurality of secondary battery housing portions provided dispersed in a plurality of locations inside or inside and outside; and a plurality of secondary batteries, a respective one of the secondary batteries housed in a respective one of the plurality of secondary battery housing portions.01-13-2011
20110057625CHARGE CONTROLLER - A charge controller includes a power supply circuit and a battery charge circuit. The power supply circuit converts the input voltage into an output voltage for supply to the load at the output terminal. The power supply circuit includes an output current detection circuit and an output current limiting circuit. The output current detection circuit detects an output current supplied through the power supply circuit. The output current limiting circuit limits the output current below a maximum output current limit. The battery charge circuit derives power from the power supply circuit to charge a secondary battery. The battery charge circuit includes a charge current detection circuit and a charge current setting circuit. The charge current detection circuit detects a charge current supplied to the secondary battery. The charge current setting circuit regulates the charge current to a set current value.03-10-2011
20100219797Circuit and Method of Operation for an Electrical Power Supply - A battery charging circuit comprising: a semiconductor switch having an output connected to a rechargeable battery; a battery charge controller for receiving power from an external source, and supplying output power to a portable device and the input of the semiconductor switch, the current output of the battery charge controller being controllable; and a voltage sensing circuit for: measuring the voltage drop across the battery charge controller; and responding to the voltage drop across the battery charge controller by modulating the semiconductor switch to reduce the quantity of current supplied to the rechargeable battery when the voltage drop is too great; whereby the total power dissipated by the battery charge controller is controlled, the portable device receiving the power it needs to operate and the rechargeable battery receiving any additional available power.09-02-2010
20090115377METHOD OF EXTERNALLY CHARGING A POWERTRAIN - A method of externally charging a powertrain includes monitoring a voltage level of a first battery, determining when the monitored voltage level is below a first voltage threshold, and when the monitored voltage level is below the first voltage threshold, charging the first battery by supplying power from an external power source and increasing voltage of the power supplied by the external power source within the powertrain.05-07-2009
20110031938Method of Estimating Battery State of Charge - The present teachings are directed toward a machine implemented method for estimating the state of charge of a battery. The machine implemented method includes providing measured and estimated cell terminal voltage to a model coefficient updater to update a model coefficient. Battery current information is provided to a battery state of charge estimator along with the updated model coefficient so that the estimated state of charge can be determined. A multi-layer model can be utilized to determine the states of charge for layers of the electrodes. The method can be implemented on a processing device, and is particularly applicable to Li-ion batteries.02-10-2011
20100301813METHOD FOR CHARGING LITHIUM BATTERIES WITH POWER DISSIPATION CONTROL - Herein described are at least methods and systems to control power dissipation while charging a device. In a representative embodiment, the method comprises first monitoring a first voltage output by a charger used for said charging a battery of a device, second monitoring a second voltage at the battery, first determining a first current based on a power dissipation value associated with the device, the first voltage, and the second voltage, second determining a minimum of the first current and a second current, wherein the second current equals the maximum charging current during a typical charge cycle of the device, and applying a control signal to a control circuit to generate the minimum, wherein the control circuit is communicatively coupled to the charger at a first port, and the battery at a second port. An exemplary system comprises one or more circuits operable for, at least performing the aforementioned method.12-02-2010
20110121791CHARGING MANAGEMENT METHOD AND SYSTEM - A charging method and system. The method includes detecting and monitoring by a computer processor, a frequency signal associated with an input voltage signal used for powering power consumption devices at a first specified location. The computer processor generates frequency level data associated with the monitoring. The computer processor receives a request to enable a charging process for charging a rechargeable power source and power source data associated with the rechargeable power source and a user. In response to the request, the computer processor enables a customized charging process associated with charging the rechargeable power source based on the frequency level data and/or the power source data.05-26-2011
20100148731METHOD AND CHARGER FOR BOOST CHARGING A CHARGEABLE BATTERY ON THE BASIS OF A PHYSICAL MODEL - The invention relates to a method of charging a rechargeable unit, such as a rechargeable battery or a rechargeable battery pack, wherein the charging current is larger than the nominal charging current (C) if at least one condition in the rechargeable unit is met, and wherein the at least one condition is continuously calculated from measurable variables of the rechargeable unit through a physics-based model. The invention also relates to a corresponding method. The features of the invention allow a continuous monitoring of the variables in the battery, so that a proper criterion is available for the decision if charging with high charge current is allowable without a reduction of the lifetime of the battery.06-17-2010
20110241627BATTERY CHARGER FOR PORTABLE ELECTRONIC EQUIPMENT - There is offered a battery charger for a portable electronic device that has a simple structure and is capable of detecting that the portable electronic device is connected to the battery charger. A first power supply line is connected to a positive terminal (+) of a rechargeable battery, while a ground line is connected to a negative terminal (−) of the rechargeable battery. An output transistor is connected between the first power supply line and a second power supply line. The output transistor is connected to a Vbus terminal of a USB connector through the second power supply line. A controller outputs a voltage of an H level to the Vbus terminal to detect a change in a voltage at the Vbus terminal, and judges whether the portable electronic device is connected to the USB connector based on a result of the detection. The controller turns the output transistor on when the portable electronic device is judged to be connected to the USB connector.10-06-2011
20110018502ELECTRICITY SUPPLY APPARATUS OF AN INDUSTRIAL SITE - An electricity supply apparatus includes a control device configured to calculate an amplitude of a control signal and to generate the control signal; an energy station configured to draw a current from a mains, to provide part of the drawn current to the load, to receive the control signal from the control device, and to vary the drawn current according to the amplitude; and a battery configured to recharge by drawing part of the drawn current and to discharge by supplying the load. The apparatus is characterized in that the control device is further configured to calculate the amplitude of the control signal also according to battery information relating to a recharge and/or a discharge condition of the battery.01-27-2011
20110018503Method and Apparatus for Charging a Battery to an Enhanced Capacity - A lithium-ion battery (01-27-2011
20110115443CHARGE DEVICE, ELECTRONIC DEVICE AND CHARGE METHOD THEREOF - A charge device is provided. The charge device includes a charge interface, a voltage detector and a control circuit. The charge interface receives a first power and provides a charge power to charge a rechargeable device accordingly. The voltage detector detects a charge voltage of the rechargeable device. The control circuit is respectively coupled to the charge interface and the voltage detector. When the charge voltage is smaller than a predetermined voltage, the control circuit makes the charge voltage and a charge current of the charge power to present a proportional relation. An electronic device and a charge method are also provided.05-19-2011
20100164440Charger for electronic device, electronic device, and charging method - A charger for an electronic device that charges a rechargeable battery of the electronic device. The charger includes a detection unit, which detects connection of another electronic device to the electronic device through a communication cable including a power supply line. A charging unit charges the rechargeable battery with power supply voltage from the power supply line. A measurement unit acquires a measurement value indicating a degree of a voltage drop of the power supply voltage occurred when the charging unit performs charging. A control unit instructs a charging current value for charging the rechargeable battery with the charging unit. When the detection unit detects connection of the other electronic device, the control unit monitors the measurement value while instructing the charging unit to increase the charging current value from an initial current value and determines the charging current value based on the monitored measurement value.07-01-2010
20110148364ROBOT BATTERY CHARGING APPARATUSES AND METHODS - Systems and methods for charging a battery of a robot are provided. In one embodiment, a method includes providing a robot battery charging apparatus having a plurality of charging terminals, providing a robot having a plurality of battery terminals, and moving the robot into an engagement position with the robot battery charging apparatus such that the plurality of battery charging terminals contact the plurality of charging terminals. The method further includes detecting whether each battery terminal contacts the corresponding charging terminal in accordance with a first, second and third terminal contact condition. The method further includes providing power to the battery from the robot battery charging apparatus through one or more of the battery and charging terminals upon a verification that all of the battery terminals contacted the corresponding charging terminals in accordance with at least two of the first, second and third terminal contact conditions.06-23-2011
20090243554Method of protecting battery for hybrid vehicle - The present invention provides a method of protecting a battery for a hybrid vehicle, in which a counter electromotive voltage of a motor is limited by limiting engine RPM if it is determined that there is a risk of battery overcharge in the event of a failure of a component related to motor control, such as a motor controller, a battery controller, etc., thus protecting the battery from the risk of overcharge and securing safety of the battery.10-01-2009
20100013441TEMPERATURE CONTROLLER - A temperature controller is provided, which comprises a control circuit. The temperature controller further comprises a charging circuit and a chargeable battery. The charging circuit functions to charge the chargeable battery and at the same time supply power to the control circuit. In the temperature controller according to the present invention, the chargeable battery is charged by an external power source, and the chargeable battery can be reused, thereby reducing cost of the temperature controller and environmental pollution caused by using alkaline batteries.01-21-2010
20100066312Overvoltage protection circuit for use in charger circuit system and charge circuit with overvoltage protection function - The present invention discloses an overvoltage protection (OVP) circuit for use in a charger circuit system, comprising: a power transistor electrically connected between a voltage supply and a battery; an OVP circuit which turns off the transistor when a voltage supply exceeds a threshold value; and a multiplexing circuit electrically connected between an output of the OVP circuit and the gate of the transistor. The present invention also discloses a charger circuit with an OVP function, comprising: a single power transistor electrically connected between a voltage supply and a battery; an OVP control circuit which turns off the power transistor when a voltage supply exceeds a threshold value; and a charger control circuit which controls the gate of the power transistor to determine a charge current to the battery when the voltage supply does not reach the threshold value.03-18-2010
20090243556SYSTEM AND METHOD FOR MONITORING THE STATE OF CHARGE OF A BATTERY - A process for monitoring the status of a battery. Steps of the process include measuring a battery current and comparing the battery current to a predetermined threshold. A battery status is determined as one of charging, discharging and quiescent. For a battery charging status determination, the charging state of charge of the battery is computed. For battery discharge status determination, the discharge current is compared to a predetermined threshold. Based upon the discharge current comparison, a basis for the discharge current is selected from one of a plurality of predetermined discharge conditions and the discharging state of charge of the battery is computed for the select discharge condition. For a quiescent status, the quiescent state of charge of the battery is computed. The computed state of charge of the battery is provided in a quantitative form.10-01-2009
20100066311POWER SUPPLY CIRCUIT AND METHOD FOR PROVIDING OUTPUT VOLTAGE - Various embodiments are described herein for a charging device and an associated charging method for charging a rechargeable battery. The charging device generally includes a current source that is coupled to a power source and configured to provide a charging current to the rechargeable battery. The charging device further includes a controller that is configured to control the current source to provide the charging current with an amplitude that is less than the charging current required by the rechargeable battery in a given charging state to bring an output voltage of the current source towards the voltage of the rechargeable battery.03-18-2010
20110101924ELECTROLYTIC SOLUTION FOR LITHIUM BATTERY, LITHIUM BATTERY COMPRISING THE SAME AND METHOD OF OPERATING THE LITHIUM BATTERY - An electrolytic solution for a lithium battery including a positive electrode having a nickel-cobalt-manganese based active material, the electrolytic solution including a nonaqueous organic solvent and a lithium salt, the nonaqueous organic solvent including ethylene carbonate and dimethyl carbonate, a lithium battery including the electrolytic solution, and a method of operating the lithium battery.05-05-2011
20100127668Voltage drop compensation for an electric power storage device charging system - A system includes an electrical energy storage device that may be in the form of one or more batteries, a charger to selectively charge the electrical energy storage device, and charger cabling sized to electrically interconnect the storage device and the charger together and span a distance separating them. The charger cabling is initially connected across the charger without the storage device to determine information specific to voltage drop caused by the cabling. The system is then reconfigured so that the cabling connects the storage device to the charger for charging. During this charging operation the previously gathered information is used to compensate for the voltage drop along the cabling as the storage device is charged with the charger.05-27-2010
20110101925FEEDBACK-ADJUSTABLE CHARGING SYSTEM AND METHOD THEREOF - The present invention provides a feedback-adjustable charging system applicable to a rechargeable electronic device and a method thereof. The feedback-adjustable charging system comprises a converter module, an adjustable voltage module and maybe a connective module. The converter module is coupled to an AC power supply and is used for converting AC power from the AC power supply into DC power. The adjustable voltage module is coupled to the converter module for receiving the DC power and producing a voltage used for charging. The connective module is coupled to the electronic device and the adjustable voltage module for receiving and transmitting the charging voltage to the electronic device and for producing a feedback parameter to the adjustable voltage module. In the charging system, the adjustable voltage module is used to adjust a value of the charging voltage according to the feedback parameter.05-05-2011
20100244783Load current dependent reduction of charge battery current - Circuits and methods to charge batteries of a portable device simultaneously with supplying power to the device for its operation, using a power source with limited maximum current, as e.g. an USB port, have been achieved. The system invented relies upon digital control only. No direct sensing of the current required for the operation of the portable device is required. The control takes care that the sum of the charging current and of the current to run the portable device does not exceed the maximum allowable current of the power source. The current required to run the portable device has precedence over the charging current.09-30-2010
20100244782CHARGING CONTROL DEVICE AND METHOD, CHARGING DEVICE, AS WELL AS PROGRAM - A battery state monitoring portion intermittently monitors the low voltage battery for supplying power to electrical components arranged in a vehicle while the power supply to the low voltage system load other than a +B load is stopped, a DCDC converter is stopped, and a +B power supply mode in which the vehicle cannot travel is set. A charging control portion starts up the DCDC converter and charges the low voltage battery with the power of a high voltage battery as a power source of the vehicle through the DCDC converter when the voltage of the low voltage battery becomes lower than or equal to a charging start voltage when the +B power supply mode is set. The present invention can be applied to a charging device of a battery of an electric vehicle.09-30-2010
20100244781CELL MANAGEMENT SYSTEM - A cell management system and method for balancing energy across a plurality of cells coupled to a circuit bus. The system can include a transformer, two transformer switches, and for each cell, a first switch pair allowing transfer of energy between the transformer and the cell, and a second switch pair allowing removal or inclusion of the cell in the serial connection of cells. The system can include an energy storage device, a switch pair allowing transfer of energy between the transformer and the storage device, and for each cell, a third switch pair allowing transfer of energy between the storage device and the cell. The system can include cell, bus and storage device sensors and state estimators. The system can include a controller that controls the transformer switches, cell switches, and storage device switches based on the sensor readings and states.09-30-2010
20100244780Battery Recharging - A method and apparatus are disclosed for charging an internal battery of a topical negative pressure (TNP) system. The method includes the steps of determining a value of current required by a TNP system, comparing the required current value with a predetermined current value and setting a resistance provided by a variable resistance element responsive to the comparison to thereby supply unrequired current as battery charging current to an internal battery of the TNP system.09-30-2010
20110254512TRICKLE CHARGER FOR HIGH-ENERGY STORAGE SYSTEMS - A voltage converter for charging an energy storage module from an alternating current line voltage, includes a first charging stage, coupled to the energy storage module, converting the line voltage to a first rectified direct current module charging voltage communicated to the energy storage module, the first rectified direct current module charging voltage greater than the line voltage, the first charging stage including an inductance for communicating a first charging current to the energy storage module; a second charging stage, switchably coupled serially with the first charging stage, down-converting the alternating current line voltage to a second rectified direct current module voltage, the second rectified direct current module voltage less than the first rectified direct current module charging voltage, wherein the second charging stage produces a second charging current not greater than the first charging current; and a controller for selectably switching the second charging stage serially with the first charging stage when the line voltage has a peak value greater than a predefined relationship to a voltage of the energy storage module wherein the second charging stage communicates the second charging current to the energy storage module through the inductance.10-20-2011
20110254513HYBRID WORKING MACHINE HAVING BATTERY PROTECTING FUNCTION - Provided is a hybrid working machine capable of performing battery charging control both for a working period and a standby period. The hybrid working machine includes a hydraulic actuator, an engine, a hydraulic pump driven by the engine to supply hydraulic fluid to the hydraulic actuator, a battery, a generator motor connected to the engine to serve as a generator by an output power of the engine to charge the battery and serve as a motor for assisting the engine by supply of an electric power from the battery, a battery monitor detecting a battery SOC, a controller which controls a charging power of the battery depending on the battery SOC, and a working state detector detecting a working state as information for discriminating between a working period during which the hydraulic actuator is actuated and a standby period during which the hydraulic actuator is not actuated. The controller limits the charging power in the standby period in comparison with in the working period.10-20-2011
20080252265DETECTION CIRCUIT - A detection circuit that reduces circuit scale. A plurality of current amplifiers respectively generate a plurality of detection signals corresponding to current flowing to a plurality of resistors. An error amplifier coupled to the plurality of current amplifiers compares the plurality of detection signals with a plurality of reference signals, respectively, to generate an error signal based on the comparison.10-16-2008
20110163727Method for Regulating or Controlling the Charge State of an Electrical Energy Accumulator of a Hybrid Vehicle - A method controls or regulates the charge state of an electrical energy accumulator of a hybrid vehicle, where, in some operating states, the energy accumulator is charged from a low to a higher charge state level by way of an electric machine driven by an internal-combustion engine of the hybrid vehicle and operating as a generator. The level of the charge state to which the energy accumulator is charged by the internal-combustion engine is selected as a function of a parameter representing the load of the electrical system or correlating thereto.07-07-2011
20110254511PORTABLE ELECTRONIC DEVICE POWER MANAGER WITH CURRENT LIMIT FEEDBACK CONTROL LOOP MODIFICATION FOR STABILIZING AN EXTERNAL POWER SUPPLY - A portable electronic device has a battery to provide power to operate the device, a connector including a power supply pin to be coupled to an external power supply, and a power manager having a battery charger circuit that draws power through the power supply pin to charge the battery. The power manager has a current limit feedback control loop that limits the drawn current in accordance with a predetermined output current rating of the external power supply. The power manager automatically changes the behavior of its control loop to stabilize operation of the coupled external power supply. Other embodiments are also described and claimed.10-20-2011
20110163726BATTERY PACK, CHARGING APPARATUS, AND CHARGING SYSTEM - A battery pack includes a battery cell, a charge calculator that calculates an amount of charge of the battery cell, a charge setting that sets multiple amounts of charge with different upper limits, a charge selecting switch that selects one of the amounts of charge, and a battery controller having a communication function that sends, to the charging apparatus, charge information about the battery cell and charging command information that instructs charging to be continued to an upper limit for the selected amount of charge.07-07-2011
20100117603Battery Testing and Charging System and Method of Operation Thereof - A battery testing and charging system that includes at least one battery testing device and at least one battery charging device, wherein the battery testing device is removable from the battery charging device and wherein the battery testing device may communicate with a plurality of battery charging devices. Also, a method of testing and charging a battery that may be implemented using, for example, the above-described battery testing and charging system.05-13-2010
20110095728METHOD AND APPARATUS FOR RECHARGING BATTERIES IN A MORE EFFICIENT MANNER - A battery charger including a converter unit, a terminal adaptor, a cable, a battery, and/or multiple power connectors. A terminal, such as an electronic device, can be connected to the converter unit using the cable or directly to the converter unit without the cable. The converter unit determines when to draw power from an external power and when to cease drawing power from the external power source by detecting a power enablement condition or a power disablement condition. The power disablement condition occurs when the terminal is fully charged, the terminal is disconnected from the converter unit, and/or a charge time of the terminal exceeds the predetermined charge time threshold. The power enablement condition occurs when the terminal is initially connected to the converter unit and/or the terminal needs to be charged. The battery supplies power to components of the converter unit and/or the terminal.04-28-2011
20110095729CHARGING CIRCUIT AND CHARGING METHOD - A charging circuit that simultaneously charges a battery with an electrical current supplied from an external power source and supplies the electrical current supplied from the external power source to a load includes a power supply circuit to supply an electrical current from the battery to the load when a load current required by the load is greater than a maximum supply current of the external power source, a detector to detect a voltage of the battery, and a controller to control power supply to the load as well as charging the battery. When the detected voltage of the battery is lower than the predetermined threshold, the controller stops supplying the electrical current from the battery to the load and charges the battery with the electrical current supplied from the external power source.04-28-2011
20100060242METHOD OF OPERATING A MOBILE DEVICE, APPARATUS AND WIRELESS DEVICE - A method of operating a mobile device, an apparatus and a wireless device are provided. The method of operating a mobile device comprises receiving an external supply voltage, converting the external supply voltage into an operating voltage and operating a circuit with the operating voltage. The method may include disconnecting a rechargeable battery from the operating voltage. The method may include charging a rechargeable battery in a trickle charge manner or in a continous manner depending on a battery voltage. An apparatus is configured to carry out the method. The method may be used by a wireless device.03-11-2010
20080218130Battery management systems with adjustable charging current - A battery management system includes a monitoring circuit and a charger. The monitoring circuit is operable for monitoring a battery pack that includes a plurality of cells, and for checking an unbalanced condition of the battery pack in each cycle of a plurality of cycles. The charger is operable for controlling a charging current to the battery pack and for receiving monitoring information from the monitoring circuit, and for adjusting the charging current from a first level in a previous cycle to a second level that is lower than the first level in response to a detection of the unbalanced condition in a current cycle.09-11-2008
20100194352CHARGING CIRCUIT, CHARGING APPARATUS, ELECTRONIC EQUIPMENT AND CHARGING METHOD - A charging circuit includes a monitoring part configured to monitor a battery voltage applied to a battery and configured to output an overvoltage signal when the battery is in an overvoltage condition a protection part configured to electrically disconnect the battery from an adaptor when receiving the overvoltage signal, and a switch which, when the battery is electrically disconnected from the adaptor, switches a monitoring node for an adaptor voltage outputted from the adaptor, from a supply node of the battery voltage to a supply node of a system voltage, which is applied to a system electrically connected with the battery and the adaptor, based on the overvoltage signal to cause a control command for controlling the adaptor voltage based on the system voltage to be outputted.08-05-2010
20110187331HYBRID ARCHITECTURE FOR DC POWER PLANTS WITH A CONTROLLER FOR PROVIDING REDUNDANT RECHARGE CAPABILITIES - Included herein is a DC power plant, a DC power system, a method charging a remote battery system and a battery charging controller. In one embodiment, the DC power plant includes: (1) a rectifier system including an AC power input and a DC power output, the rectifier system configured to receive an AC input voltage at the AC power input and produce a DC output voltage at the DC power output and (2) a controller configured to determine a permitted charging current for a remote battery system coupled to the rectifier system and dynamically adjust the DC output voltage to provide the permitted charging current for the remote battery system.08-04-2011
20110187330NONAQUEOUS ELECTROLYTE SECONDARY BATTERY APPARATUS AND METHOD FOR CHARGING ANODE OF THE SAME - The present invention suppresses a decrease in the capacity of a lithium ion battery. A polymer forming agent or a sacrificial reducing agent is added to a nonaqueous electrolytic solution. A voltage is then applied to between a battery container and an anode. Thus, lithium ions can be inserted into the anode to recover the capacity of the battery.08-04-2011
20100026247CHARGING APPARATUS FOR MOVING ROBOT AND METHOD THEREOF - Provided is a charging apparatus for a moving robot including a charging terminal that is connected to a terminal for charging a battery of the moving robot; a power supply unit that supplies a charging voltage for charging the battery of the moving robot; a power switching unit that outputs a detection signal, depending on whether a voltage is applied from the charging terminal or not, and switches a current flow between the power supply unit and the charging terminal in accordance with an input control signal; and a control unit that responds to the detection signal so as to output the control signal.02-04-2010
20100019735Storage system including a plurality of battery modules - In a storage system provided with a plurality of storage modules, the rated power consumption can be reduced. The storage system is provided with a charge control unit. The charge control unit stops, when detecting that a predetermined number of a plurality of battery modules are during battery charging, the battery charging in the remaining battery modules.01-28-2010
20100019734Charge Control Device and Electrically Driven Vehicle - Commercial AC voltage applied to an input terminal (01-28-2010
20110068749BATTERY CHARGING AND ELECTRICAL ENERGY DELIVERY SYSTEM AND BATTERY OPERATED SYSTEM - A battery charging and electrical energy delivery system (03-24-2011
20110148365Detector for electromagnetic fields - A battery-powered electrical device is disclosed, which may be implemented as an implantable medical device, wherein the device contains at least one battery voltage monitoring unit which is designed to monitor a voltage profile at a battery during the charging of a capacitor, via a transformer in a charging circuit, and which on the basis of the voltage characteristic is able to specify a magnetic presaturation of the transformer, and one control unit which terminates the charging process whenever a predefined threshold value for the magnetic presaturation of the transformer is exceeded.06-23-2011
20110304304CHARGE CONTROLLER AND METHOD OF OPERATING THE SAME - A charge controller supplies current to a plurality of charging devices for charging a battery for a vehicle including an electric vehicle and a plug-in hybrid vehicle. The charge controller includes a rechargeable battery, a current supply unit and a current distribution controller. The rechargeable battery stores electric power supplied from a power distribution line. The current supply unit supplies current from the rechargeable battery to the charging devices. The current distribution controller determines distribution of the current supplied through the current supply unit to the charging devices based on the charging data about the vehicle received from the charging devices.12-15-2011
20120306455METHOD AND SYSTEM FOR DETERMINING WHETHER A PORTABLE DEVICE IS CHARGING - A method and system for detecting a charging current supplied to a portable device through a USB charger. The method includes the steps of connecting a charging circuit to a portable device, allowing the portable device to draw charging current from the charging circuit, measuring the current drawn from the charging circuit, comparing the measured current with a threshold value, making one or more system level decisions regarding charging of the portable device if the detected charging current is below the threshold current.12-06-2012
20120038326MOTOR VEHICLE AND CONTROL METHOD THEREOF - In the case that an auxiliary such as the air conditioner is operated with electric power from the commercial power supply by controlling the charger prior to the system startup and the inter-terminal voltage of the battery is more than or equal to the threshold value Vref that is a voltage where there is a possibility of overcharging the battery when the battery is charged, the supply voltage of the electric power supplied from the charger is set to the voltage that is a little smaller than the threshold value, and the auxiliary is operated with the electric power from the battery and the electric power from the charger. This arrangement enables to prevent overcharging the battery and to operate the auxiliary in the case that an auxiliary such as the air conditioner is operated with electric power from the commercial power supply by controlling the charger prior to the system startup.02-16-2012
20110050180Charging Control Circuit - A charging control circuit includes connecting terminals series-connected with one another and each adapted for connecting one battery, a current control circuit or both a current-restraining unit and a switch unit connected with each connecting terminal, a charging unit for charging the batteries, and a control unit for detecting the voltage of each connecting terminal to judge whether the connecting terminal disconnects with the battery or not and whether the battery is fully charged or not, then control the current control circuit or a switch state of the corresponding switch unit to adjust the flow direction of a charge current from the charging unit. When all of the batteries are detected to be fully charged, the control unit controls the current control circuits or switch units to be connected to divide the charge current, or controls the charging unit to directly provide a trickle current.03-03-2011
20110169460HYBRID VEHICLES - In a battery charging system for a hybrid vehicle, a user-operated switch is provided for triggering an engine to charge battery at an earlier stage for an extended journey as compared to a normal journey. A sensor is provided to detect a charge state level of the battery, the output of the sensor being compared at with a threshold set by switch.07-14-2011
20110080143BUCK-BOOST CIRCUIT - In accordance with some embodiments, a buck-boost circuit is contemplated which is bi-directional. That is, the buck-boost circuit be configured to produce a load voltage for a load responsive to a source voltage from a voltage source, and the buck-boost circuit may also be configured to produce a charging voltage for the voltage source responsive to a second voltage source connected to the load. In an embodiment, the buck-boost circuit may be operating in boost mode when providing the load voltage and may be operating in buck mode when providing the charging voltage.04-07-2011
20110156662MANAGEMENT SYSTEM FOR EXCHANGE ELECTRIC STORAGE DEVICES AND MANAGEMENT METHOD FOR EXCHANGE ELECTRIC STORAGE DEVICES - A PC executes a program including a step of selecting an exchange electric storage device with the shortest charging history when a charging request is present, inventory of exchange electric storage devices with completed charging is available, the number of inventory days is equal to or less than A days, and the sufficient number of storage locations is ensured, a step of selecting an exchange electric storage device with the longest charging history when the sufficient number of storage locations is not ensured, and a step of executing charging control when the selected exchange electric storage device is connected to a charger.06-30-2011
20120062183ELECTRONIC DEVICE AND CHARGING METHOD THEREOF - An electronic device and a charging method thereof are provided, wherein the electronic device has a battery and is connected to a power supply. In the charging method, it is determined whether a current time of the electronic device is in a specific time interval. During the specific time interval, it is determined whether a remaining power of the battery is more than a lower bound of power. If yes, the battery is stopped form being charged and the battery is solely used to keep the electronic device working; otherwise, the power supply is controlled and an intermittence charging procedure is used to charge the battery in accordance with the lower bound of power. While not in the specific time interval, a normal charging procedure is used to charge the battery. By switching between the two different charging procedures, purposes of charging effectively and lowering electricity bills are both achieved.03-15-2012
20120007566CHARGING CIRCUIT - A charging circuit for charging a battery includes a processor, a switching circuit, a voltage converter, and a power voltage detecting circuit. A first terminal of the switching circuit is connected to a power source. A second terminal of the switching circuit is connected to a first output of the processor. A first terminal of the voltage converter is connected to a third terminal of the switching circuit. A second terminal of the voltage converter is connected to the battery. The power voltage detecting circuit is connected to the power source, and a first input and a second output of the processor.01-12-2012
20110074363ELECTRONIC APPARATUS WITH FAKE CHARGING PREVENTING FUNCTION AND METHOD THEREOF - A method for preventing fake charging of an electronic apparatus is provided. The method includes: providing a power management table for setting function units for each power range; activating a fake charging preventing function according to a predetermined condition or an activating operation of users; detecting power of the electronic apparatus every a first predetermined time interval; determining a current power range the detected power falls into; determining whether the current power range is changed; beginning to time when the current power range is changed; activating function units which are disabled and whose power range is the current power range when the timing reaches a second predetermined time interval and the detected power is still in the current power range.03-31-2011
20120161720STORAGE SYSTEM INCLUDING A PLURALITY OF BATTERY MODULES - In a storage system provided with a plurality of storage modules, the rated power consumption can be reduced. The storage system is provided with a charge control unit. The charge control unit Stops, when detecting that a predetermined number of a plurality of battery modules are during battery charging, the battery charging in the remaining battery modules.06-28-2012
20100085021METHOD FOR STEPPING CURRENT OUTPUT BY A BATTERY CHARGER - A battery charger is provided for implementing a charging method having a stepped output current. The battery charger includes: a power supply circuit that receives an AC input signal and outputs a DC output signal. The power supply circuit includes a power supply controller configured to receive a feedback signal indicative of current being output by the power supply circuit via an amplifier and operates to control current output by the power supply circuit in accordance with the feedback signal. A charger controller is interfaced with the power supply controller to implement a charging method having a stepped output current. The charger controller may set the output current level by adjusting gain of an operational amplifier having a negative feedback configuration with the feedback signal input to a non-inverting input terminal of the operational amplifier, where the charger controller sets the output current level by changing the resistance at an inverting input terminal of the operational amplifier.04-08-2010
20120133339RADIOGRAPHIC IMAGE DETECTION DEVICE AND RADIOGRAPHIC IMAGE CAPTURING SYSTEM - A radiographic image capturing system having, a low-current electric power feeding section, a high-current electric power feeding section, and a cassette-type radiographic image detection device having a battery which feeds electric power, the radiographic image detection device including: a power receiving side connection section receiving electric power from an electric power feeding section having been connected; a first charging path converting electric power fed from the power feeding section into charging electric power which is fed to the battery; a second charging path feeding the electric power to the battery without the conversion; and a charging path switching section switching when the low-current electric power feeding section has been connected to the power receiving side connection section, electric power is fed via the first charging path and when the high-current electric power feeding section has been connected, electric power is fed via the second charging path.05-31-2012
20120249085Method For Controlling Charging Current - An exemplary method for controlling a charging current is adapted to a charging device. The charging device receives an input voltage to thereby output the charging current. The method includes the following steps of: making the charging current have a first value; judging whether the input voltage is less than a preset reference voltage; and if the input voltage is judged to be less than the preset reference voltage, decreasing the charging current from the first value step by step until the input voltage retrieves back above the preset reference voltage.10-04-2012
20100052623System and Method for Remote Battery Sensing - Systems and methods for remote battery sensing and charging are disclosed. A method may include determining whether a charge output of a battery charger is electrically coupled to a rechargeable battery, wherein the charge output is configured to charge the rechargeable battery. The method may also include electrically coupling a terminal of the rechargeable battery to a reference voltage input of the battery charger in response to determining the charge output is electrically coupled to the rechargeable battery, wherein the battery charger is configured to determine whether the rechargeable battery is to be charged based on the reference voltage input voltage. The method may further include electrically coupling the reference voltage input to the charge output in response to determining the charge output is not electrically coupled to the rechargeable battery.03-04-2010
20120299556DETERIORATION DEGREE DETERMINING APPARATUS - A deterioration degree determining apparatus determines a deterioration degree of a battery of a vehicle. The device includes an electric component activating part activating a non-driving series electric component of the vehicle by using electric power of the battery to determine the deterioration degree of the battery, a charge degree obtaining part which obtains a charge degree of the battery during a time period in which a charge state of the battery is increased to a designated degree by charging the battery after the battery is discharged for a designated period of time by causing the electric component activating part to activate the non-driving series electric component, the battery being charged by electric power generated by an electric generator of the vehicle; and a deterioration degree determining part determining the deterioration degree of the battery based on the charge degree obtained by the charge degree obtaining part.11-29-2012
20120299555BATTERY CELL WITH AN INTEGRATED POUCH METAL FOIL TERMINAL - A battery includes a battery cell having a pair of cell electrodes that are encased in a laminated pouch. The laminated pouch has a conductive moisture barrier layer that is sandwiched between respective electrically insulating layers. Several terminals are integrated with the pouch, including a first terminal and a second terminal that are directly connected to the first and second cell electrodes, respectively, and a third terminal that is directly connected to the conductive moister barrier layer. Other embodiments are also described and claimed.11-29-2012
20120229099System for Storing Electrical Energy - The invention concerns a system for storing electric energy, which comprises a plurality of storage cells, which have each an operating voltage. An electrical load as well as a switching element in series with the device are arranged in parallel to a storage cell. The switching element is closed when reaching or exceeding a threshold voltage. The system moreover includes a control device, which is arranged in order to adjust the threshold voltage depending on a voltage value established from operating voltages of the plurality of the storage cells. A storage cell for storing electric energy as well as a method for controlling a system designed for storing electric energy with a plurality of storage cells are also provided.09-13-2012
20100327818CHARGE CONTROL CIRCUIT, AND CHARGING DEVICE AND BATTERY PACK INCORPORATED WITH THE SAME - A charge control circuit that controls a charging section which charges a secondary battery by supplying a charging current to the secondary battery. The charge control circuit includes a voltage detection section which detects a terminal voltage of the secondary battery; a primary charge processing section which performs a charge processing of acquiring, as a first terminal voltage, a terminal voltage detected by the voltage detection section while causing the charging section to charge the secondary battery; a charging suspend voltage acquiring section which causes the charging section to suspend the charge after the first terminal voltage has been acquired by the primary charge processing section, and acquires, as a second terminal voltage, a terminal voltage detected by the voltage detection section in a state that the charge is suspended; and a charging end determining section which determines whether or not the charge of the secondary battery is to be terminated, based on a difference between the first terminal voltage acquired by the primary charge processing section and the second terminal voltage acquired by the charging suspend voltage acquiring section.12-30-2010
20120262125METHOD AND CHARGE CONTROL FOR PROLONGING THE USEFUL LIFE OF BATTERIES - A method for prolonging the service life of a traction battery of an electric-powered or hybrid vehicle. The method includes recording at least one driving phase selection that encompasses a travel duration, a start of driving, or both; and recording an instantaneous state of charge of the traction battery. At least one aging parameter is minimized that encompasses the time interval between a charging process and the start of driving or the charging energy used to charge the traction battery in accordance with at least one driving phase selection; and the charging process is executed in accordance with the minimized aging parameter. Also, a charge control for implementing the method.10-18-2012
20110037440Process for producing lithium secondary battery - A process for producing a lithium secondary battery employs a charging method where a positive electrode upon charging has a maximum achieved potential of 4.3 V (vs. Li/Li+) or lower. The process includes charging the lithium secondary battery to reach at least a region with relatively flat fluctuation of potential appearing in a positive electrode potential region exceeding 4.3 V (vs. Li/Li02-17-2011
20120319660APPARATUS AND METHOD FOR MEASURING GROUND IMPEDANCE OF A CIRCUIT - A ground continuity circuit is described. In one embodiment, a first voltage of a signal associated with an electrical line input to a circuit is measured with respect to a first resistance value of the circuit. A ground continuity test signal is asserted into the circuit that causes the resistance value of the circuit to change to a second resistance value. A second voltage of the signal is measured with respect to the second resistance value. A ground impedance value of the circuit is determined as a function of the first and second measured voltages and the first and second resistance values.12-20-2012
20100231176Battery Charging System and Method - Methods, devices, and systems for charging a battery in a mobile device are provided. For example, in one embodiment, among others, a battery charging system includes a monitoring circuit configured to monitor a battery and generate a sense current. The battery charging system further includes a comparing circuit configured to compare a reference current and the generated sense current. The comparing circuit is further configured to generate a comparison signal. Also, the battery charging system further includes a control circuit configured to control a level of a charging current applied to the battery based on the comparison signal.09-16-2010
20100231175POWER SUPPLY CIRCUIT, CHARGING UNIT HAVING THE POWER SUPPLY CIRCUIT, AND POWER SUPPLY METHOD - A power supply circuit supplying power to a charge control circuit charging a secondary battery is disclosed. The power supply circuit includes a direct-current power supply configured to generate and output a predetermined voltage; and a DC-DC converter configured, to detect the voltage of the secondary battery, convert the predetermined voltage input from the direct-current power supply into a voltage according to the detected voltage of the secondary battery, and output the converted voltage to the charge control circuit.09-16-2010
20100231177BATTERY PACK AND CHARGER SYSTEM - A battery pack includes plurality of secondary battery cells, a voltage measurement module configured to measure a voltage of each of the plurality of secondary battery cells, a charge switching module configured to turn on and off a charge current to the plurality of secondary battery cells, a first judgment module configured to judge whether a highest voltage value measured by the voltage measurement module is equal to or greater than a predetermined value, and a charge stop module configured to turn off the charge switching module when the highest value is equal to or greater than a predetermined value.09-16-2010
20120091972SYSTEM, CHARGING DEVICE, AND METHOD OF CHARGING A POWER STORAGE DEVICE - A system for charging a plurality of power storage devices includes a first charging device and at least one other charging device coupled to the first charging device to form a network. The first charging device includes a processor programmed to determine whether said first charging device possesses a network token, and if so, to determine a first charging parameter and a first priority associated with said first charging device, a second charging parameter and a second priority associated with said second charging device, and to determine a second amount of current to be at least one of received from the electrical supply or supplied to the first power storage device, based on the determined first and second charging parameters and first and second priority.04-19-2012
20120091971EXCESSIVE CURRENT DETECTION CONTROLS METHOD - A method for controlling charging and discharging of a battery pack for an electric or hybrid vehicle to prevent overheating damage. Current flowing into or out of the battery pack is monitored, and root mean square (RMS) current is integrated over a time window and compared to a threshold to determine if power needs to be regulated in order to prevent damage to the cells in the battery pack. If the time-integrated RMS current exceeds the threshold, a closed-loop proportional-integral (PI) controller is activated to regulate power input or output. The controller will continue to regulate power until the time-integrated RMS current drops below the threshold. Various thresholds can be defined for different time windows. The gains used in the PI controller can also be adjusted to scale the amount of power regulation.04-19-2012
20120139503ELECTRONIC APPARATUS, METHOD FOR CONTROLLING ELECTRONIC APPARATUS, COMPUTER PROGRAM, AND RECORDING MEDIUM - The present invention provides an electronic device that can operate as long as possible even if the battery level is low and that can avoid an unexpected shutdown as much of the time as possible while data is being transmitted to, or received from, an external device.06-07-2012
20130009607DETERMINATION DEVICE, DETERMINING METHOD AND DETERMINATION PROGRAM - A determination determines permission/forbiddance to charge an accumulator that obtains electrical power from a power grid network. The determination device comprises a first acquisition unit configured to acquire first information about a requested power amount requested to charge the accumulator, a second acquisition unit configured to acquire second information about an available power amount that can be provided from the power grid network, and a determination unit configured to determine permission or forbiddance with respect to the accumulator based on the first information and the second information.01-10-2013
20130015823Charge Rate Modulation of Metal-Air Cells as a Function of Ambient Oxygen Concentration - A method for charging a metal-air battery pack at the maximum possible rate while maintaining an ambient oxygen concentration below a preset concentration is provided, thereby minimizing the risks associated with generating oxygen during the charging cycle.01-17-2013
20130169239ELECTRIC POWER GENERATION CONTROL SYSTEM FOR VEHICLE - An electric power generation control system for a vehicle, which enables generation of electric power by a generator as much as possible while preventing an electrical component from being overheated by power generation by the generator. The electric power generation control system selectively switches a mode of the generator between first and second modes in which an instruction voltage is higher and not higher than an allowable voltage of a wire harness, respectively. A counter value is counted up in the first mode and down in the second mode. When the counter value has reached a higher limit value, the first mode is inhibited and the power generation mode is set to the second mode. This increase the proportion of an execution time period of the first, and accordingly, when a possibility of overheating the wire harness becomes high, the instruction voltage is lowered.07-04-2013
20080224668Generator Device for Independently Charging At Least Two Batteries - A generator device, e.g. a motor vehicle alternator, has a generator and can be electrically coupled to at least two batteries at the output end. The generator device is provided with one respective rectifier circuit for the at least two batteries. The rectifier circuits are configured and can be controlled such that power generated by the generator can be fed to the respective battery independently of the at least one other battery.09-18-2008
20110273144UNIVERSAL SERIAL BUS (USB) CHARGING SYSTEM AND METHOD THEREOF - A USB charging system and the method thereof are disclosed. The USB charging system includes a hub device having a charging function module and a plurality of connection ports. The charging function module dynamically distributes the charging current to the connection ports based on power supply ability of a power unit for providing the charging current to at least one chargeable device wherein the charging current is greater than USB protocol current.11-10-2011
20120249084METHOD AND APPARATUS FOR MANAGING CHARGING CURRENT - An apparatus may comprise first circuitry arranged to draw current from a charging source at multiple current levels and second circuitry arranged to determine a charging current capacity of the charging source using the first circuitry.10-04-2012
20130176001METHOD FOR CHARGING A BATTERY OF A MOTOR VEHICLE - In a method for charging a battery of a motor vehicle, with the battery having a plurality of electrochemical cells, all electrochemical cells are charged with a predefined charge current over a predefined charge time, when the battery is charged for the first time. After the first-time charging, a battery state of each electrochemical cell is determined, with a deviation from a target charge state being stored for each cell. Thereafter, the cells are then balanced. In subsequent charging processes, a charge current and/or charge time for future charging processes is determined for each electrochemical cell in dependence on the stored deviation from the target charge state following the first-time charging. Charge currents and charge times for individual cells are adjusted in this manner to the specific properties thereof such that an optimal charge state of the battery is ensured without the need for separate balancing in subsequent charging processes.07-11-2013
20130134949APPARATUS AND METHOD FOR MANAGING POWER FOR MOBILE DEVICE - An apparatus and method of managing power for a mobile device is disclosed, which can prevent an inflow of overcurrent to the device when the device is charged. The apparatus includes a state judgment unit to judge whether a battery of the mobile device is being charged, a voltage level detection unit to detect a voltage level of the battery if the battery is judged as being charged, and a control unit to control a driving of the mobile device in accordance with the detected voltage level.05-30-2013
20130141054ELECTRICITY CHARGING SYSTEM - An electricity charging system includes: a charger portion that charges a storage battery; a detection portion that detects an amount of charge stored in the storage battery; and a control portion that controls electric power that is supplied to charge the storage battery by the charger portion so that the electric power changes by a predetermined rule, according to the amount of stored electricity detected by the detection portion.06-06-2013
20080203976Voltage measuring device and voltage measuring system - In a voltage measuring device, according to a setting of input terminals for setting the number of unit cells to be measured SEL08-28-2008
20090295339USB CHARGER USING SENSOR-LESS CURRENT LIMIT - A universal serial bus charger comprises a universal serial bus connector for providing a connection to a voltage source. An output voltage connector provides a charging voltage to a connected battery. A switching voltage regulator generates the charging voltage responsive to the voltage source. Control circuitry monitors an actual charging current applied to the connected battery and provides a programmed current signal enabling the actual charging current to operate at a programmed level if the actual charging current does not exceed a programmed charging current level. The control circuitry provides a charging current limit signal enabling the actual charging current to operate at a predetermined charge current limit if the actual charging current exceeds the programmed charging current level. PWM control circuitry generates switching control signals to control operation of the switching voltage regulator responsive to the control circuitry.12-03-2009
20100289457ENERGY EFFICIENT AND FAST CHARGE MODES OF A RECHARGEABLE BATTERY - A method of providing power to an electronic device in an energy-efficient manner includes transitioning between power states corresponding to charging and discharging a battery. The state of charge of the battery is detected. Upon detecting a high threshold state of charge, an external power source such as an AC-to-DC adapter is disabled, and the battery to provides primary power to the electronic device. Upon a low threshold state of charge, the AC-to-DC adapter is controlled to provide a high current output to charge the battery and provide primary power to the electronic device. The power states, when cycled over time based on the state of the battery, provide for an energy-efficient method of powering the electronic device.11-18-2010
20100308775BATTERY PACK AND SECONDARY BATTERY SYSTEM - A battery pack is a battery pack chargeable a normal charge and a quick charge, and includes: a normal charging terminal 12-09-2010
20120274287CHARGING SYSTEMS FOR USE WITH ELECTRIC VEHICLES AND METHODS OF MONITORING SAME - A system for monitoring operation of an electric vehicle charging station is provided. The system includes a battery charger configured to couple to a device for supplying current to the device, a current sensor coupled to the battery charger for measuring current supplied from the battery charger to the device, the current sensor configured to generate a measured current profile based on the measured current supplied to the device, and a processor coupled to the current sensor. The processor is configured to receive the measured current profile transmitted from the current sensor, and compare the measured current profile to at least one known current profile to monitor operation of the charging station.11-01-2012
20110234174ELECTRONIC DEVICE HAVING POWER MANAGEMENT ASSEMBLY - An electronic device includes a power cable, a host, a rechargeable battery, and a power management assembly. The power cable is configured for electrically coupling an external power supply to the electronic device. The rechargeable battery is electrically coupled to the host. The power management assembly is electrically coupled to the host and the rechargeable battery. The power management assembly is configured for controlling drawing the maximum rated power of the electronic device from the external power supply through the power cable as the power management assembly is being used, and controlling the host to switch on a power-saving mode, and increase current flowing to the rechargeable battery when the host works in the power-saving mode.09-29-2011
20130154576BATTERY CHARGING METHOD FOR HYBRID ELECTRIC VEHICLES - A battery charging method for a hybrid electric vehicle, may include a step of receiving a vehicle gradient value through a transmission control unit (TCU) or an inclination sensor when the vehicle stops, a step of converting a transmission stage into an N stage and driving an engine to recharge a battery by a main motor when the received vehicle gradient value a preset gradient value or less, and a step of charging the battery by Generating the main motor_by engaging an engine clutch after the engine driven.06-20-2013
20130154577Full Charge Sensing Apparatus And Full Charge Sensing Method - A full charge sensing apparatus for sensing a fully charged state of a secondary battery based on an equivalent circuit model of the secondary battery includes a measuring unit that measures a voltage and a current during charging of the secondary battery, a learning unit that performs a learning process on a plurality of parameters in the equivalent circuit model using a result of measurement of the measuring unit, and a determining unit that determines that the secondary battery is in a fully charged state in a case where, among the parameters on which the learning process has been performed by the learning unit, a parameter corresponding to a reaction resistance of the secondary battery is greater than a predetermined threshold.06-20-2013
20130181684BATTERY CONTROL SYSTEM - A battery control system includes a lithium ion secondary battery and a control device and further includes a voltage storage unit, a resistance storage unit, a current storage unit, a difference obtaining unit for obtaining a difference resistance ΔR(T07-18-2013
20110298429POWER PATH MANAGEMENT CIRCUIT AND METHOD - Power path management method and circuit are provided. The supply current drained from a power supply is detected and controlled not to exceed a supply current limit . The charge current charging a battery is detected and controlled not to exceed a charge current limit . When the supply current is found to exceed the supply current limit, the charge current limit is decreased.12-08-2011
20110298428METHOD AND APPARATUS FOR INCREASING THE NUMBER OF THE POWERED DEVICES SUPPORTED BY THE POE SYSTEM - In order to increase the number of the powered devices that can be supported by the Ethernet power supply system, the present invention proposed to equip the powered device with an electrical energy storage device, namely shift the power timely shift the power supplying capability of the power sourcing equipment. The power sourcing equipment charges the electrical energy storage device, and then the powered device is supplied by the electrical energy storage device under usual situations. Thus the number of the powered devices that can be supported by the Ethernet power supply system is increased without increasing the supplying capability of the electrical quantity of the power sourcing equipment. Using the solution in the present invention, the capacity of the powered devices in the POE system is increased without having to change the hardware of the power sourcing equipment, and without having to change the wiring.12-08-2011
20110309801CHARGING CONTROL SYSTEM - In a charging control system for recording data regarding charging a secondary battery, a status recording unit refers the charging voltage value and the charging current value and records the referred charging voltage, the referred charging current and reference time when the charging current value is referred and time when the charging voltage value is referred, on the recording unit. A battery protecting unit stops the charging the secondary battery when the charging voltage exceeds the predetermined target voltage value. The status recording unit starts recording of the charging voltage value, the charging current value, and the reference time on the recording unit, when the charging voltage exceeds the target voltage value as a result of a fail in stopping the charging by the battery protecting unit because of occurrence of a trouble in the battery protecting unit.12-22-2011
20130113438Power Tool - A power tool including: a motor configured to be rotated by a lithium-ion secondary battery; an end tool configured to be driven by the rotation of the motor; and a switch configured to cause power to be supplied from the lithium-ion secondary battery to the motor when being manipulated by an operator, wherein the lithium-ion secondary battery includes a cell having a 14500 size and is configured to rotate the motor such that an output of the motor is sufficient for driving the end tool.05-09-2013
20130193932INTERACTION OF THERMAL MANAGEMENT AND CHARGING MANAGEMENT DURING EXTERNAL CHARGING - Several types of power demands, including a cooling power demand for components, a heating power demands for components and comfort performance demand for a passenger compartment, can be transferred from a thermal management to a charging management, wherein the types of power demands are prioritized by the charging management in a different manner.08-01-2013
20120293136DUAL-INTERFACE CARD READER MODULE - A dual-interface card reader module is disclosed including: a card accessing circuit; a power controller for providing a charging current to a USB device; an overcurrent detector coupled with the power controller for generating an overcurrent notice when the charging current is greater than a current threshold; and a control circuit coupled with the card accessing circuit and the power controller for accessing a data storage card via the card accessing circuit and instructing the power controller to reduce its electricity output to lower the charging current when receiving the overcurrent notice.11-22-2012
20130200857METHOD AND APPARATUS FOR CHARGING BATTERY - A method and apparatus for charging a battery of a mobile device are provided. In the apparatus, a processor of the device starts a charging process when a connection of a charger is detected after a booting process of the device is initiated. The processor adjusts electric power by performing at least one of reducing consuming power of the device and raising charging power of the device. When a completion condition of a power adjustment is satisfied, the processor returns the electric power by performing at least one of returning the reduced consuming power to a basic consuming value and returning the raised charging power to a basic charging value.08-08-2013
20120086407BATTERY CHARGING CIRCUIT AND ELECTRONIC DEVICE - A battery charging circuit comprises: a first voltage regulator, wherein the first voltage regulator has a control input designed for reception of a signal generated by a current metering circuit; the current metering circuit; and a terminal for connecting a battery. An electronic device, in particular a mobile device, comprises a battery charging circuit as defined above.04-12-2012
20120086406CHARGE CONTROL CIRCUIT, BATTERY PACK, AND CHARGING SYSTEM - A charge control circuit includes: a charge controller for controlling an operation of a charger that charges a secondary battery; a voltage detector for detecting a terminal voltage of the secondary battery; and a current detector for detecting a current flowing to the secondary battery, wherein the charge controller repeats a plurality of times constant current constant voltage charge in which the charge controller supplies a charging current of a predetermined set current value from the charger to the secondary battery to cause the charger to execute constant current charge, and, when the terminal voltage detected by the voltage detector becomes equal to a predetermined threshold voltage value during the execution of the constant current charge, causes the charger to execute constant voltage charge by supplying a charging voltage of the threshold voltage value from the charger to the secondary battery until a current value detected by the current detector becomes equal to a predetermined threshold current value, and increases the threshold voltage value and reduces the set current value and the threshold current value each time the constant current constant voltage charge is repeated.04-12-2012

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