Class / Patent application number | Description | Number of patent applications / Date published |
320149000 | With detection of current or voltage integral (e.g., total charge, etc.) | 30 |
20080252262 | Device And Method For Charging And Controlling The Charge Of A Battery - An apparatus and a method for charging and for charge monitoring of a rechargeable battery. A charging circuit contains a rechargeable battery (B) and a charging device (L) for charging the rechargeable battery. A measurement device (M) is arranged in the charging circuit and contains a device for determining the rechargeable-battery current and the state of charge of the rechargeable battery. A control device (R) compares a value that is proportional to the rechargeable-battery current with a set value, and controls the charging device. | 10-16-2008 |
20080258689 | Charging Method and Circuit Using Indirect Current Sensing - The present invention relates to a charging circuit and method for generating a charging current supplied to an output terminal ( | 10-23-2008 |
20080284378 | Method and Device for Controlling the Operating Point of a Battery - Disclosed is a method for controlling the operating point (AP, AP | 11-20-2008 |
20090033290 | APPARATUS FOR ESTIMATING STATE OF CHARGE OF RECHARGEABLE BATTERY CHARGED BY VEHICLE-MOUNTED POWER GENERATION APPARATUS - The apparatus, which is for estimating a state of charge of a rechargeable battery charged by a vehicle-mounted power generation apparatus capable of generating a variable output voltage, includes a first function of quantifying charging/discharging history of the rechargeable battery, and a second function of performing estimation of a state of charge of the rechargeable battery on the basis of a parameter which indicates a charging/discharging current of the rechargeable battery when variation of the output voltage of the vehicle-mounted power generation apparatus is below a predetermined value, and the quantified charging/discharging history, while eliminating an effect which polarization of the rechargeable battery due to the charging/discharging history has on the charging/discharging current before the variation of the output voltage becomes below the predetermined value. | 02-05-2009 |
20090058369 | BATTERY CHARGING CIRCUIT - The present invention provides a battery charging circuit to charge batteries in phases. In a first charging phase the charging circuit charges the batteries with a large current and at a second charging phase the charging circuit charges the batteries with a much smaller current. The charging circuit includes a current detection circuit which detects a charge current and provides a detection voltage proportional to the charge current. The battery charging circuit also includes an amplifier circuit to amplify the detection voltage and a comparison module compares the amplified detection voltage with a reference voltage. If the amplified detection voltage is lower than the reference voltage, the comparison module outputs a switch signal to a control module. The control module controls a charging module to charge the battery in a trickle mode when receiving the switch signal. | 03-05-2009 |
20090108811 | CHARGE EVALUATING SYSTEM AND METHOD FOR A MOBILE PHONE - A charge evaluating method for a mobile phone is provided. The method includes calculating a final charge value A of a mobile phone battery when charging is complete according to a charge value prior to the battery being charged by the battery charger, a charge current value, a power dissipation value and a charging time. The method further includes converting the final voltage value to a final charge value B of the mobile phone battery, and displaying the final charge value A if the final charge value B is more than the final charge value A. | 04-30-2009 |
20090273318 | TIME REMAINING TO CHARGE AN IMPLANTABLE MEDICAL DEVICE, CHARGER INDICATOR, SYSTEM AND METHOD THEREFORE - System and method for estimating a time to recharge a rechargeable power source of an implantable medical device. A plurality of measured parameters relating to the implantable medical device and an external charging device are applied to a model of recharging performance and an estimate is provided to a patient, perhaps in advance of charging. Once charging has begun, updated estimates can be provided until charging is complete. Once charging is complete, the model may be updated to reflect any differences in the estimated time to complete charging and the actual time required to complete charging. The model may be based on limitations to the rate at which charge may be transferred to the rechargeable power source over a plurality of intervals. | 11-05-2009 |
20100085017 | APPARATUS WITH RECHARGEABLE POWER SUPPLY - A fraction of the battery energy is kept in reserve during operational use of a battery-powered apparatus. The motor of the apparatus is switched off when the battery has discharged to the level of this reserve fraction. The reserve is made available again for operational use when the user has recharged the apparatus for a little while. This approach | 04-08-2010 |
20110012561 | BATTERY CHARGER WITH AUTOMATIC VOLTAGE DETECTION - A battery charger is disclosed that is configured to be connected to an external battery by way of external battery cables. In accordance with an important aspect of the invention, the battery charger is configured with automatic voltage detection which automatically determines the nominal voltage of the battery connected to its terminals and charges the battery as a function of the detected nominal voltage irrespective of the nominal voltage selected by a user. Various safeguards are built into the battery charger to avoid overcharging a battery. For battery chargers with user selectable nominal battery voltage charging modes, battery charger is configured to over-ride a user selected battery voltage mode if it detects that the battery connected to the battery charger terminals is different than the user selected charging mode. | 01-20-2011 |
20110031936 | APPARATUS AND METHOD FOR TRANSMISSION LINE CONTROL - It is presented an apparatus comprising: a converter ( | 02-10-2011 |
20110084668 | ELECTRICITY STORAGE SYSTEM HAVING A PLURALITY OF SERIES-CONNECTED STORAGE CELLS - An electricity storage system includes a plurality of storage modules connected in series, each storage module including a single storage cell or a plurality of storage cells connected in series, an isolation transformer and a rectifying circuit that are associated with each of the storage modules, the isolation transformer having a primary winding and a secondary winding, and a voltage balancing circuit that generates an alternating current by switching a direct-current power source, the primary windings of the isolation transformers being all connected in parallel and connected to an output end of the voltage balancing circuit by a common wiring, the secondary windings of the isolation transformers being connected to the corresponding storage modules via the respective rectifying circuits, the alternating current being supplied to the primary winding of each of the isolation transformers. | 04-14-2011 |
20110181249 | CHARGING METHOD AND CHARGER FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - In a charging method for a non-aqueous electrolyte secondary battery which comprises a positive electrode including a lithium-containing composite oxide as an active material, a negative electrode including a material capable of charging and discharging lithium ions as an active material, and a non-aqueous electrolyte, an open circuit voltage of the secondary battery is detected. When the detected value is smaller than a predetermined voltage x, charging is performed at a comparatively small current value B. When the detected value is equal to or greater than the predetermined voltage x and smaller than a predetermined voltage z, charging is performed at a comparatively great current value A. When the detected value is equal to or greater than the predetermined voltage z and smaller than a predetermined voltage y, charging is performed at a comparatively small current value C. When the detected value is greater than the predetermined voltage y, constant-voltage charging is performed or charging is terminated. Here, x07-28-2011 | |
20110187329 | BATTERY CONDITION DETECTOR, BATTERY PACK INCLUDING SAME, AND BATTERY CONDITION DETECTING METHOD - A battery condition detector configured to detect a micro short circuit of a rechargeable battery is disclosed. The battery condition detector includes a processing part configured to calculate the remaining capacity and the full-charge capacity of a rechargeable battery | 08-04-2011 |
20120019215 | METHOD FOR CHARGING MULTIPLE RECHARGEABLE ENERGY STORAGE SYSTEMS AND RELATED SYSTEMS AND METHODS - Some embodiments include a method for charging multiple rechargeable energy storage systems. Other embodiments or related systems and methods are disclosed. | 01-26-2012 |
20120086405 | BATTERY STATE-OF-CHARGE CALCULATION DEVICE - The battery state-of-charge calculation device ( | 04-12-2012 |
20120098500 | METHOD OF DETECTING CHARGER TYPE AND ESTIMATING REMAINING RECHARGING TIME FOR MOBILE DEVICES WITH USB RECHARGING - Method, apparatus, and computer program product embodiments are disclosed for estimating the remaining charging time of a rechargeable battery. An example embodiment of the invention comprises a method comprising the steps of detecting an availability of a charging device to a battery in an apparatus; determining a type of the charging device by measuring its charging characteristics for charging the battery in the apparatus and comparing its measured charging characteristics with stored charging characteristics of a plurality of chargers, adapters, or charger-adapter combinations; measuring charging current of the battery; and calculating a time remaining to charge the battery based on a comparison of the measured charging current with the stored charging characteristics. | 04-26-2012 |
20120119709 | BATTERY PACK BALANCING CIRCUIT - A battery management balancing device provides local discharge circuits for individual cells of a battery pack, where the discharge circuits include a power transistor. The use of a power transistor yields a controllable balancing current through that transistor between a cathode and anode of the individual cell. A microcontroller monitors a state of charge of each cell, such as by measuring the cell voltages, and provides control signals, for example indicating a target voltage for each cell, that drive the power transistors in designated discharge circuits. | 05-17-2012 |
20120256599 | BATTERY MANAGEMENT SYSTEM AND METHOD OF CONTROLLING THE SAME - A battery management system (BMS) and a method of controlling the same are disclosed. In one embodiment, the BMS includes a reference setup unit configured to set a charge completion value used to calculate a state of health (SOH) of the battery, wherein the battery comprises one or more battery packs each including a plurality of battery cells, and a charge amount calculation unit configured to calculate an amount actually charged in the battery from a first point in time when charging of the battery begins to a second point in time when the battery charging actually reaches the charge completion value. The BMS may further include an SOH calculation unit configured to calculate the SOH of the battery based on a ratio of i) the actual charge amount to ii) a preset charge amount expected to be charged from the first time point to the second time point. | 10-11-2012 |
20120280663 | APPARATUS AND METHOD FOR CONTROLLING CHARGING CURRENT IN DEVICE USING RECHARGEABLE BATTERY - An apparatus and a method stabilize a charging current when recharging a battery in a device that uses a rechargeable battery. The device includes a charge module and a controller. The charge module provides a charging current to the battery, and operates in at least one of a Constant Current (CC) mode that maintains the charging current at a fixed value while the battery is charged, and a Constant Voltage (CV) mode that maintains a battery voltage at a reference value. The controller controls the charge module to operate in the CC mode when starting charging, controls the charge module to operate in the CV mode when the battery voltage reaches the reference value, and controls the charge module to operate in the CC mode for at least one time duration after the battery voltage reaches the reference value. | 11-08-2012 |
20130082664 | CHARGING METHOD AND CHARGING SYSTEM FOR LITHIUM ION SECONDARY BATTERY - Charging of a lithium ion secondary battery including a positive electrode including a positive electrode active material capable of absorbing and releasing lithium ions, a negative electrode including a negative electrode active material being an alloy-formable active material capable of absorbing and releasing lithium ions, a separator interposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte is performed. In charging, the remaining capacity and the temperature of the lithium ion secondary battery are detected, and the lithium ion secondary battery is charged until the battery voltage reaches a reference voltage E | 04-04-2013 |
20130176000 | BATTERY CHARGING - A method and system for controlling charging of a rechargeable battery to obtain a desired state of battery charge. In one embodiment the method comprises assessing an indicator of state of battery charge to determine current battery charge and determining the desired state of battery charge at a predetermined point in an expected battery load pattern. Then receiving an indication of an operational characteristic of an available charge source per time slot to charge the rechargeable battery until the predetermined point and calculating in which of the time slots to charge the battery in order to charge the rechargeable battery to the desired state of battery charge by the predetermined point in the expected battery load pattern to optimise a charging characteristic to the predetermined point. A device and computer program produce is also disclosed, to run continuously, subject to configured parameters, to optimise charging characteristics. | 07-11-2013 |
20130221932 | APPARATUS AND METHOD FOR REDUCING LEAKAGE CURRENT - A method for reducing leakage current generated by a pull-down circuit detects if leakage current is generated by the pull-down circuit and collects at least a portion of the leakage current. The collected leakage current is amplified and output to a battery. The apparatus to reduce leakage current includes a pull-down circuit to generate leakage current, a leakage current detector to detect the leakage current and to collect at least a portion of the leakage current, an integrator to receive leakage current and to amplify the leakage current; and a battery to receive voltage generated from the amplified leakage current. | 08-29-2013 |
20140132224 | Interrupting the Charging Status of a Rechargeable Battery - Interrupting the charging status of a rechargeable battery comprises providing a timer operable electrical extension cord. The extension cord comprises a conducting cable or media capable of transmitting electric current providing desired extended operative connection between at least a power input connector to a power source or one or more electrical sockets at one end of the conducting media and a power output connector at other end of the conducting media to any intermittently operable or charge dependent electrically operable unit. The extension cord includes a timer for continuously tracking the desired time duration for which the switch is to be either in an on state or in an off state. The timer cooperates with a controller to trigger a corresponding change in a switching state of the extension cord. | 05-15-2014 |
20140266069 | Power Converter Circuit Including at Least One Battery - A circuit includes a first power converter circuit and a second power converter circuit. The input of the second power converter circuit is coupled to the output of the first power converter circuit and is configured to receive an input signal. A rechargeable battery is coupled to the output of the first power converter circuit. A charge control circuit is configured to control charging the rechargeable battery by controlling the second power converter circuit. | 09-18-2014 |
20140266070 | Apparatus and Method for Enhancing Battery Life - An apparatus and method for enhancing battery life including monitoring a first voltage level of a battery; receiving a first indication of the first voltage level; comparing the first indication to a first threshold to derive a comparison; determining if the battery needs charging based on the comparison; and configuring at least one switching mechanism to engage at least one capacitor to charge the battery. | 09-18-2014 |
20140285158 | REGULATOR, BATTERY CHARGING APPARATUS AND BATTERY CHARGING METHOD - [Problem to be Solved] | 09-25-2014 |
20140361752 | BATTERY CHARGING METHOD AND APPARATUS - Methods for charging batteries comprises applying a charging current to the battery, monitoring the voltages of the positive and negative electrodes during the step of applying the charging current, and determining a point during the process of applying the charging current where the negative electrode is fully charged. Monitoring comprises determining the total battery voltage from the combined voltages of the battery positive and negative electrodes. The slopes along the total battery voltage are measured to obtain a trend line of the change in the slope of the total battery voltage during charging. The trend line is monitored against a logarithm of the applied charging current to determine a point where the negative electrodes are in a state of full charge, at which point the positive electrodes are also fully charged. The charging operation is terminated once such state of fully charge has been determined. | 12-11-2014 |
20150048801 | METHOD AND SYSTEM FOR ENERGY STORAGE CAPACITY ESTIMATION OF BATTER CELLS - An apparatus ( | 02-19-2015 |
20150048802 | POWER GENERATION DEVICE FOR VEHICLE AND POWER GENERATION CONTROL METHOD - Provided are a power generation control method for a vehicle configured to perform idling stop at a predetermined vehicle speed or less by a stop/start system, the vehicle including: a power generator configured to be driven by an internal combustion engine to generate power; and a battery to be charged by the power generated by the power generator, the power being generated in the vehicle under control so as to reduce an amount of fuel to be consumed by the internal combustion engine for power generation, the power generation control method including: detecting a charged and discharged state of the battery; and controlling the internal combustion engine to interrupt power generation involving fuel consumption when a charged state of the battery has recovered to a charged state before the idling stop through charging after the idling stop in accordance with the detected charged and discharged state. | 02-19-2015 |
20160144737 | Battery Pack Charging Protocol Selection System - A charging system is provided for use with the battery pack of an electric vehicle, where both the charge level and the charging rate may be specified over a range of available levels and rates, respectively. A system controller coupled to the charging system determines the optimal charging level and the optimal charging rate, where optimization is based on maximizing battery lifetime while insuring that there is sufficient power for the vehicle to travel the user's intended distance and that the charging process will be completed prior to the user's intended departure time. | 05-26-2016 |