Abstract: A vehicle includes a power interface configured to perform at least one of power transmission to and power reception from an external apparatus, a power accumulation device, a power line that constitutes at least a part of a current path between the power interface and the power accumulation device, and a control device configured to control charging and discharging of the power accumulation device using a plurality of profiles for protecting the power line. The profiles are determined such that the degrees of reduction of the magnitude of a current that flows through the power line and the energization time become larger as the ambient temperature of the power line becomes higher. The profiles include a first profile and a second profile that has a larger degree of reduction than that of the first profile.

Abstract: Systems and apparatus may carry out analysis of battery physical phenomena, and characterize batteries based on phenomena occurring in particular time and/or frequency domains. These systems may be additionally responsible for charging and/or monitoring a rechargeable battery. Examples of battery physical phenomena include mass transport (e.g., diffusion and/or migration) in battery electrolytes, mass transport in battery electrodes, and reactions on battery electrodes.

Abstract: A control method for a power source, including the following steps: detecting the electric power quality of multiple channels of inputs of a power source; in response to the electric power quality of the multiple channels of inputs being normal, acquiring and comparing the resistance of a relay when the power source is respectively working at each channel of input; in response to the resistance of the relay at each channel of input meeting a preset condition, acquiring the duration how long each power source is working at one channel of input among the multiple channels of inputs; and in response to the duration how long the power source is working at the channel of input in the multiple channels of inputs being greater than a threshold value, adjusting the power source to work at other channel of input.

Abstract: A lithium battery designed to replace lead-acid battery. The lithium battery has a plurality of battery cells connected in series and a battery management unit. The battery management unit includes a controller, a sensing unit connected to the plurality of battery cells and the controller, a charging control unit connected to the controller, and a discharging control unit connected to the controller. The battery management unit prevents the batteries connected in parallel from mutually charging each other and also prevents the batteries being depleted completely by outputting a low voltage in pulse mode when the battery has low charge.

Abstract: A method of charging a lithium-ion battery. It is assumed that the battery has a cooling system. A desired temperature profile for the battery during charging is determined. The charge current is pulse width modulated (PWM), as is the activation of the cooling system. During charging, various parameters of either or both of the PWM signals are adjusted such that the desired temperature profile is maintained.

Abstract: The present invention provides a battery equalizing apparatus and method, and an unmanned aerial vehicle (UAV). The battery equalizing apparatus includes: a battery gauge configured to monitor battery level information of a battery in a static state, a battery equalizing circuit being disposed inside the battery gauge; and a microprocessor connected to a communication port of the battery gauge and configured to: acquire the battery level information monitored by the battery gauge, and calculate a pressure difference between cells of the battery in a static state according to the battery level information, and determine whether the pressure difference is greater than a pressure difference threshold; the microprocessor sending a trigger signal to the battery gauge through the communication port when the pressure difference is greater than the pressure difference threshold, to trigger the equalizing circuit of the battery gauge to equalize the battery.

Abstract: The present application relates to a battery charging method and charging system which can prevent degradation of a battery and enhance the lifetime characteristics thereof. In one aspect, the charging method includes charging a battery at a first C-rate higher than a reference C-rate, wherein the C-rate represents charge or discharge current/a rated capacity of the battery. The charging method also includes charging the battery at a second C-rate lower than the reference C-rate. The charging of the battery at the first C-rate includes at least one rest period for temporarily stopping the charging of the battery.

Abstract: The present disclosure provides a charging system and method and a power adapter. The system includes: a battery; a first rectification unit, configured to output a voltage with a first pulsating waveform; a switch unit, configured to modulate the voltage with the first pulsating waveform; a transformer, configured to output a voltage with a second pulsating waveform according to the modulated voltage; a second rectification unit, configured to rectify the voltage with the second pulsating waveform to output a voltage with a third pulsating waveform; and a control unit, configured to output the control signal to the switch unit to decrease a length of a valley of the voltage with the third pulsating waveform such that a peak value of a voltage of the battery is sampled.

Abstract: An electronic system electronic device includes: an internal battery, an external battery, a memory and a plurality of function modules. The internal battery is configured to generate a first power signal. The external battery is configured to be separated from the electronic device, and to generate a second power signal. The memory is configured to operate based on the first power signal. The plurality of function modules are configured to operate based on the second power signal.

Abstract: A switching converter circuit comprises an inductive circuit element; a driver switching circuit configured to provide energy to the inductive circuit element to generate an output voltage of the switching converter circuit, the output voltage having an alternating current (AC) signal component and a direct current (DC) signal component; a current sensing circuit configured to generate a current sense signal representative of inductor current of the inductive circuit element, wherein an output of the current sensing circuit is coupled to a bias circuit node; and a dynamic bias circuit configured to apply a dynamic bias voltage to the bias circuit node, wherein the dynamic bias voltage includes an AC component that tracks the AC signal component of the output voltage.

Abstract: A universal charging device and a universal charging method thereof is disclosed. An AC voltage is converted into a DC charging voltage. At least two first charging processes are sequentially performed. In each first charging process, the DC charging voltage is adjusted to be larger than the terminal voltage of a battery based on the terminal voltage and the DC charging voltage charges the battery. The DC charging voltage generates a DC charging current and a pulse current to flow through the battery until the terminal voltage is equal to the DC charging voltage. A voltage across the battery established by the pulse current satisfies a charged condition. When the terminal voltage is equal to the DC charging voltage, the DC charging current is converted into a decreasing trickle current until the value of the trickle current is decreased to a triggered current value.

Abstract: A method for fast-charging an electrochemical cell comprises the steps of: —providing the electrochemical cell, the electrochemical cell presenting an initial state of charge (SOC), and—providing a time-varying charging voltage to the electrochemical cell, thereby generating a charging current resulting in charging of the electrochemical cell from the initial SOC up to a target value SOCf for the state of charge. The step of providing a time-varying charging voltage involves applying N bundles of current pulses in such a way that: each bundle k (1?k?N) comprises a variable number Pk of ik pulses (1?ik?Pk), each ik pulse in a k bundle being defined by a C-rate equal to ni,k·C and a duration ?i,k. at each pulse ik, the state of charge (SOC) is increased by ?ik (%)=ni,k·?i,k/M, with M as a predetermined parameter.

Abstract: A battery fleet charging system for charging two or more battery packs simultaneously, at independently controlled charge rates. The present invention can intelligently distribute the available charge power among multiple batteries, either symmetrically or asymmetrically, as specified by a controller that specifies and regulates the charge voltage.

Abstract: A battery charger circuit having a regulator controller configured to control the switching transistors of a switching voltage regulator. A power path switch is disposed intermediate an output of the switching voltage regulator and a terminal of a battery to be charged, with the power path switch including at least two transistor segments having common respective drain electrodes, common respective source electrodes and separate respective gate electrodes. A power path switch controller operates to sequentially turn ON the at least two transistor segments of the power path switch, preferably in the order of a decreasing ON resistance.

Abstract: A system and method are disclosed for charging a depleted battery within a first hybrid vehicle when connected to a second hybrid vehicle using a junction box. The system may include a wire harness having high voltage interlock connectors (HVIL) and high voltage (HV) connectors that connected to both the first vehicle and second vehicle. The system may also include one or more controllers that engage the charged battery to start a first engine within the first vehicle or, alternatively, a second engine within the second vehicle. After the first engine or second engine is started, the charged battery will be disconnected and the depleted battery may be connected using a set of HV contactors. The first engine or the second engine may then be operated to charge the depleted battery. Charging may stop when the depleted battery is charged within a specified SoC range.

Abstract: An aircraft-based power system includes a charger system that includes a charger controller and a charger circuit. The charger system is further configured to connect to a ground-based power source and the charger system is further configured to deliver power from the ground-based power source to the charger circuit. The charger circuit is configured to be controlled by the charger controller and the charger controller is configured to control the charger circuit consistent with a charging protocol. The charger system is further configured to charge a battery system that includes a plurality of battery cells with the charger circuit consistent with the charging protocol.

Abstract: In exemplary embodiments, methods, systems, and vehicles are provided for controlling operation of a vehicle in a fuel economy mode. In one embodiment, a vehicle is includes a battery, a generator, and a control system for controlling operation of the vehicle in a fuel economy mode, the control system including: (i) one or more current sensors configured to measure a battery current of the battery; and (ii) a processor coupled to the one or more current sensors and configured to at least facilitate controlling operation of the battery and the generator in the fuel economy mode utilizing a dynamic voltage threshold that is adjusted based on a comparison of the battery current with a baseload current threshold.

Abstract: A method and system for charging multi-cell lithium-based batteries. In some aspects, a battery charger includes a housing, at least one terminal to electrically connect to a battery pack supported by the housing, and a controller operable to provide a charging current to the battery pack through the at least one terminal. The battery pack includes a plurality of lithium-based battery cells, with each battery cell of the plurality of battery cells having an individual state of charge. The controller is operable to control the charging current being supplied to the battery pack at least in part based on the individual state of charge of at least one battery cell.

Abstract: The semiconductor device including first and second transistors configured to provide a first voltage to a first node, the first voltage being a voltage provided from a travel adaptor (TA), a third transistor connected in series with the second transistor and configured to provide a ground voltage to the first node, and a fourth transistor configured to receive a second voltage from a first inductor connected to the first node, and provide the second voltage to a second node as a third voltage for charging a battery connected thereto may be provided.

Abstract: This disclosure provides systems, methods and apparatus for an energy storage system. In one aspect, the energy storage system includes a controller configured to connect a capacitor system in series with an output of a battery system during a regenerative event such that the voltage of the capacitor system is subtracted from the voltage of the battery system.

Abstract: A system and a method for fast charging a battery, based on dynamically determined cut-off voltage are provided. The system includes a hardware processor, and a non-volatile memory comprising instructions, the instructions executed by the hardware processor configure the hardware processor to identify dynamically, a current state of charge (SOC) of the battery, by a battery charging module, determine at least one fast charging profile that matches the current SOC of the battery, by the battery charging module, determine a dynamic cut-off voltage that matches the fast charging profile, by the battery charging module, and charge the battery based on the dynamic cut-off voltage, by the battery charging module.

Abstract: A charging system, a charging method, and a power adapter are provided. The power adapter includes a first rectification unit, a switch unit, a transformer, a second rectification unit, a first charging interface, a sampling unit, and a control unit. The control unit is configured to output a control signal to the switch unit, and adjust a duty ratio of the control signal based on a voltage sampling value and/or a current sampling value sampled by the sampling unit, in which a voltage of a third pulsating waveform output from the second rectification unit meets the charging requirements. The terminal includes a second charging interface and a battery. The second charging interface is coupled with the battery. When the second charging interface is coupled to the first charging interface, the second charging interface applies the voltage of the third pulsating waveform to the battery.

Abstract: An adapter and a charging control method are provided, the adapter includes a power conversion unit, a voltage feedback unit, a current feedback unit and a power adjusting unit. An input end of the power adjusting unit is coupled to an output end of the voltage feedback unit and an output end of the current feedback unit respectively, and an output end of the power adjusting unit is coupled to the power conversion unit. The power adjusting unit is configured to receive a voltage feedback signal and a current feedback signal, and to stabilize the output voltage and the output current of the adapter when the voltage feedback signal indicates that the output voltage of the adapter reaches a predetermined target voltage or when the current feedback signal indicates that the output current of the adapter reaches a predetermined target current.

Abstract: An analogue measurement data detection system according to the present invention includes: a reference voltage generation circuit configured to generate and output a reference voltage; an analogue/digital converter configured to compare an analogue signal with the reference voltage outputted from the reference voltage generation circuit, and based on a differential voltage between the analogue signal and the reference voltage, generate and output a digital signal corresponding to the analogue signal. The reference voltage generation circuit is configured to cause the reference voltage to have such a temperature characteristic as to compensate for temperature characteristics of at least the analogue/digital converter and the reference voltage generation circuit.

Abstract: A charging system for a terminal, a charge method, and a terminal are provided. The charging system includes a power adapter and the terminal. The terminal includes a battery, a fast charging circuit, a voltameter and a comparator circuit. The fast charging circuit applies the voltage with a pulsating waveform to the battery and acquires a battery voltage threshold value. The voltameter adjusts a reference voltage based on the battery voltage threshold value. The comparator circuit outputs a reverse signal to the fast charging circuit when a battery voltage reaches the reference voltage. The fast charging module adjusts a charging state through the power adapter.

Abstract: Charge processes and systems are provided for charging a supercapacitor. The charging includes: charging a supercapacitor by applying a constant charge to the supercapacitor; and controlling termination of the constant charging of the supercapacitor. In one approach, the controlling termination includes dynamically determining, during the charging, a remaining charge time for the constant charging to substantially fully charge the supercapacitor; and allowing the charging to continue for the remaining charge time, and based on expiration of the remaining charge time, terminating the charging.

Abstract: Method and apparatus to charge a battery are disclosed. The method comprises applying a first charge signal to the battery, wherein the first charge signal is calculated to charge the battery as required by a first charge time parameter, the first charge-time parameter specifying a time to reach (i) a state of charge of the battery or (ii) a charge storage level corresponding to a usage time of the battery. The method further includes determining a second charge signal using feedback information and applying the second charge signal to the battery, wherein an adjustment from the first charge signal to the second charge signal improves a cycle life of the battery. An apparatus for charging the battery implementing the method is also provided.

Abstract: Disclosed is pulse charging of a battery that uses frequency modulation to vary the pulse periods of the charging pulses. Battery measurements can be made to determine the duty cycles of the charging pulses.

Abstract: The present inventions, in one aspect, are directed to techniques and/or circuitry to applying a charge pulse to the terminals of the battery during a charging operation, measure a plurality of voltages of the battery which are in response to the first charge pulse, determine a charge pulse voltage (CPV) of the battery, wherein the charge pulse voltage is a peak voltage which is in response to the first charge pulse, determine whether the CPV of the battery is within a predetermined range or greater than a predetermined upper limit value and adapt one or more characteristics of a charge packet if the CPV is outside the predetermined range or is greater than a predetermined upper limit value.

Abstract: This document discusses, among other things, apparatus and methods to optimize charging of a battery, including providing a first charge profile configured to provide charge current pulses to a battery in a plurality of steps. In the first charge profile, the charge current pulses can be stepped down in the plurality of steps using a comparison of a terminal voltage of the battery to a clamp voltage. When the terminal voltage meets or exceeds the clamp voltage, a high time current of the charge current pulse can be decreased and the clamp voltage can be increased before providing a subsequent charge current pulse.

Abstract: The invention relates to a method for measuring an electric current of a battery (10) with multiple battery modules (11), having the step of measuring a temperature related to the battery module (11). According to the method, the temperature of a connector is first determined for at least one battery module (11) using the measured temperature and a temperature model, and the electric resistance of the connector is determined using a resistance model and the temperature of the connector. The electric voltage which drops at the connector is then measured, and the electric current flowing through the connector is calculated from the voltage. The invention additionally relates to a corresponding device and to a battery comprising such a device.

Abstract: Disclosed is pulse charging and pulse discharging of a reconfigurable battery pack that uses frequency modulation to vary the pulse periods of the charging pulses and the discharging pulses. Battery measurements can be made to determine the duty cycles of the charging pulses and the discharging pulses. Additionally, the battery pack can be reconfigured to match with varying charging devices and varying loads.

Abstract: A battery fuel gauge current sensing circuit includes: a sense unit coupled in series with the battery and configured to sense the battery current; a control unit configured to adjust the ON resistance of the sense unit based on the comparison of the voltage across the sense unit and a threshold voltage until the voltage across the sense unit is greater than the threshold voltage; and a sample unit coupled across the sense unit and configured to sample the voltage across the sense unit and to provide an analog sample voltage when the voltage across the sense unit is greater than the threshold voltage.

Abstract: An analog measurement data detection system according to the present invention includes: a reference voltage generation circuit configured to generate and output a reference voltage; an analog/digital converter configured to compare an analog signal with the reference voltage outputted from the reference voltage generation circuit, and based on a differential voltage between the analog signal and the reference voltage, generate and output a digital signal corresponding to the analog signal. The reference voltage generation circuit is configured to cause the reference voltage to have such a temperature characteristic as to compensate for temperature characteristics of at least the analog/digital converter and the reference voltage generation circuit.

Abstract: A solar USB charger for providing power to electrical devices from solar energy without the use of an internal battery comprising of at least one solar cell, an electronic circuit and a means to connect the device to the item than needs to be charged.

Abstract: Techniques are disclosed relating to determining whether to bar a public land mobile network (PLMN). In some embodiments, a mobile device is configured to increment a count of failed requests to a PLMN for requests that are explicitly rejected by a base station and not for other requests. In some embodiments, the mobile device is configured to bar the PLMN in response to the count reaching a threshold value. In some embodiments, for requests that fail without explicit rejection, the mobile device is configured to wait a predetermined time interval before transmitting another request to the base station. The time interval may be telescoped for subsequent requests that fail without a rejection. In various embodiments, the disclosed techniques may reduce power consumption while avoiding premature PLMN barring.

Abstract: The present invention provides a fast charging method for battery, including the steps as follows: (1) the battery is charged with a constant current I1 and the charging time is t1; (2) the battery is charged with a constant current I2 and the charging time is t2; (3) the battery is discharged with the constant current I2 and the discharging time is t3, recycling until the voltage reaches a pre-charging voltage of battery; (4) the battery is standed after the voltage reaching the pre-charging voltage of battery, and the rest time is t4, and then the battery is charged with a constant current I3 until the voltage reaching a cut-off voltage of battery, and then the battery is charged with a constant voltage until the current reaching a cut-off current I4; wherein, I2<I1, t2<t1, t3<t1, I2<I3?I1, I4?I2.

Abstract: The present inventions, in one aspect, are directed to techniques and/or circuitry to adjust, correct and/or compensate a state of charge of the battery using the data which is representative of the relaxation time (e.g., full relaxation time) of the battery. The techniques and/or circuitry may determine the data which is representative of a relaxation time based on or using: (i) the rate of decay of the voltage at the terminals of the battery after terminating application of the charge current to the battery, (ii) a voltage which is constant or substantially constant after termination of the charge current and/or (iii) an amount of time associated with the decay of the voltage at the terminals of the battery to at least a measured or predetermined voltage. Notably, the charge signal or current may include a plurality of pulses.

Abstract: The present inventions, in one aspect, are directed to techniques and/or circuitry to applying a current pulse to the terminals of the battery during a charge, measuring a voltage at the terminals of the battery, selecting a relationship of an open circuit voltage to an amount of charge in the battery using data which is representative of a state of health of the battery, calculating an open circuit voltage of the battery using the voltage measured at the terminals of the battery, a current applied to or removed from the battery and an impedance of the battery, and determining a state of charge of the battery using (i) the calculated open circuit voltage and (ii) the relationship of the open circuit voltage to the amount of charge.

Abstract: This disclosure describes techniques for a method of charging a battery. In an example, the method includes charging the battery during a first charging session until a first charging termination parameter value is reached. The method also includes determining, for a second charging session, a second charging termination parameter value based on a duration of the first charging session, wherein the second charging termination parameter value is different than the first charging termination parameter value. The method also includes charging the battery during the second charging session until the second charging termination parameter value is reached.

Abstract: A charging structure including a power supply device, a rechargeable battery and a charging management device is provided. The power supply device is configured to provide a system voltage. The charging management device is configured to switch a corresponding charging mode according to the voltage level of the positive end of the rechargeable battery. The charging management device stops charging action when a charging current for charging the rechargeable battery drops down to a pre-set current value.

Abstract: A system for charging a capacitor used to power measurement-while-drilling equipment includes a power bus, which is electrically connected to the capacitor; a first pair of battery terminals; switching circuitry for electrically connecting the power bus to and disconnecting the power bus from the first pair of battery terminals; and a controller, for controlling the switching circuitry, which is configured to charge the capacitor by applying a first pulse width modulated control signal to control the switching circuitry. The first pulse width modulated control signal has a duty cycle selected such that the voltage of the first battery remains above a first minimum operating voltage while the capacitor is being charged.

Abstract: Methods of reducing power consumption in a USB power-delivery source device. In one such method, one or more source capabilities messages are sent by the USB power-delivery source device. If, after sending a source capabilities message, a response to said source capabilities message is not received within a predetermined time period, the device sends another source capabilities message. If, after sending a predetermined number of source capabilities messages, no response is received, the device waits an extended period of time before sending another source capabilities message. Receiving functionality of the USB power-delivery source device is turned off during some or all of said extended period of time.

Abstract: The present inventions, in one aspect, are directed to techniques and/or circuitry to adaptively charge a battery/cell using data which is representative of a change in terminal voltage of the battery/cell. In another aspect, the present inventions are directed to techniques and/or circuitry to adaptively charge a battery/cell using data which is representative of partial and/or full relaxation time of the battery/cell. In yet another aspect the present inventions are directed to techniques and/or circuitry to determine whether the data which is representative of partial and/or full relaxation time exceeds a predetermined range and/or is greater than a predetermined value.

Abstract: The present inventions, in one aspect, are directed to techniques and/or circuitry to adaptively charge a battery/cell using data which is representative of a change in terminal voltage of the battery/cell. In another aspect, the present inventions are directed to techniques and/or circuitry to adaptively charge a battery/cell using data which is representative of partial and/or full relaxation time of the battery/cell. In yet another aspect the present inventions are directed to techniques and/or circuitry to determine whether the data which is representative of partial and/or full relaxation time exceeds a predetermined range and/or is greater than a predetermined value.

Abstract: A battery SoC estimation device includes a discharge-and charge current detection means 1, a terminal-voltage detection means 2, a current-integration SoC estimation means 3, an open-circuit-voltage SoC estimation means 4, an error estimation means 6, and an SoC calculating means 7. The estimation means 3 estimates a current-integration-method SoC (SoCi), calculating variance of current-integration-method SoC based on information on detection accuracy of the detection means 1. The estimation means 4 estimates an open-circuit-voltage-method SoC (SoCv) corresponding to an open circuit voltage value estimated based on a discharge-and-charge current value and a terminal voltage value, using a battery equivalent circuit model. The estimation means 6 estimates an estimate error ni of the current-integration-method SoC based on a difference between the SoCv and the SoCi, variance of the SoCi, and variance of the SoCv. The calculating means 7 calculates SoC of a battery based on the SoCi and the ni.

Abstract: A reduction in breakdown voltage and mechanical deterioration of an electrode plate of a rechargeable battery are suppressed, and a charging time is shortened. There is provided a charger 10 which charges a rechargeable battery, comprising: a first output unit which outputs a first voltage; a second output unit which outputs a second voltage having a predetermined voltage value different from that of the first voltage; a charge control unit 16 which inputs the first voltage and the second voltage, alternately outputs these voltages, and supplies them to the rechargeable battery as charging voltages; a charged-amount detection unit 14 which measures a charged amount of the rechargeable battery; and an output control unit 15 which carries out control in such a manner that an output time of the first voltage and/or the second voltage in the charge control unit 15 is prolonged as the charged amount increases.

Abstract: An electrical power generating system including a power generating device, a power converter connected to the power generating device, and an electrical controller connected to the power converter. The electrical controller is configured to limit a peak junction temperature of the power converter by applying at least one junction temperature derating function.

Abstract: A charge controller includes a charge control circuit that, when detecting that a charging power supply is connected, controls the charging transistor to apply the charge current; a first and second control switch element connected in series between one terminal of a secondary battery and an external terminal; and a protection circuit that, when the secondary battery is over-discharged, turns off the first control switch element to stop discharge current and when deeply discharged, turns off the second control switch element. The protection circuit sends a charge inhibit signal to the charge control circuit when the secondary battery is deeply discharged, and while receiving the charge inhibit signal, the charge control circuit keeps the charging transistor off to prevent the charge current from flowing even if detecting that the charging power supply is connected.

Abstract: A charge controller includes a charge control circuit that, when detecting that a charging power supply is connected, controls the charging transistor to apply the charge current; a first and second control switch element connected in series between one terminal of a secondary battery and an external terminal; and a protection circuit that, when the secondary battery is over-discharged, turns off the first control switch element to stop discharge current and when deeply discharged, turns off the second control switch element. The protection circuit sends a charge inhibit signal to the charge control circuit when the secondary battery is deeply discharged, and while receiving the charge inhibit signal, the charge control circuit keeps the charging transistor off to prevent the charge current from flowing even if detecting that the charging power supply is connected.