Abstract: A charging pile includes a plurality of charging guns and a single heat dissipation module. The plurality of charging guns is connected to the heat dissipation module for heat dissipation via heat exchange. A power distribution system for the charging pile includes: a power module for supplying power to the plurality of charging guns; a control unit connected to the power module and the heat dissipation module for determining an output current of each charging gun depending on the maximum heat dissipation power PlossMax of the heat dissipation module and the maximum heat loss PchargerMax of each charging gun when the plurality of charging guns charge simultaneously; and a power distribution unit connected to the power module and the control unit for distributing the power supplied by the power module to a device through a charging gun connected thereto depending on the output current of that charging gun.

Abstract: A charging system includes: an interface configured to removably and electrically couple to an external battery; a connector configured to removably and electrically couple to an on-board diagnostic (OBD) port of a vehicle; charge management circuitry electrically coupled to the interface and the connector; and a microcontroller unit (MCU) coupled to the charge management circuitry. The MCU is configured to execute computer readable program code for managing an output of current from the external battery to a vehicle battery of the vehicle through the electrical coupling of the connector and the OBD port. The charging system can be used to prevent a vehicle battery from becoming discharged during extended periods of storage.

Abstract: A battery quick-change device of a portable power station includes a power station housing and several detachable batteries; the power station housing has several battery compartments for accommodating the several detachable batteries; each of the several battery compartments is provided with a compartment opening and a first connector located in a respective battery compartment; each of the several detachable batteries is provided with a second connector capable of being inserted into the first connector; each of the several detachable batteries is assembled into a respective battery compartment through the compartment opening, and the second connector is inserted into the first connector; and the several detachable batteries when assembled into the several battery compartments are electrically connected in parallel.

Abstract: One or more battery sub-modules are selected by obtaining at least one voltage from each battery sub-module and selecting based at least in part on the obtained voltages. The battery sub-modules are electrically connected in series in order to provide power to a primary load. Each battery sub-module includes a plurality of cells electrically connected in series and each battery sub-module further includes a battery management system that monitors the cells in that battery sub-module. Those battery management systems in the selected sub-modules are turned off so that the battery management systems in the selected sub-modules do not consume power at least temporarily from the cells in the selected sub-modules while (1) the battery sub-modules are not providing power to the primary load and (2) the battery sub-modules are not being charged.

Abstract: A charging controller includes a current measurement unit configured to measure a charging current of a rechargeable battery, a detection unit configured to detect switching from a constant current charge to a constant voltage charge based on the charging current measured by the current measurement unit, during charge of the rechargeable battery, and an update unit configured to update a full charge capacity of the rechargeable battery based on a charged capacity after the point in time, detected by the detection unit, of switching from the constant current charge to the constant voltage charge.

Abstract: An electrical architecture includes multiple nodal controllers, at least two power sources, and a power supply network. Each nodal controller includes at least one output port configured to be connected to an electrical load operating with a voltage of multiple different voltages. The at least two power sources are associated with the multiple different voltages and configured to supply the multiple nodal controllers through the power supply network. The power supply network includes a power line connecting the multiple nodal controllers to each other in a ring and is configured to supply the multiple nodal controllers with electrical power from the at least two power sources. Each nodal controller of the multiple nodal controllers is linked to the power line via a bidirectional DC/DC converter and is configured to control a sleep or a wake-up mode responsive to detection of a corresponding voltage transition within the power supply network.

Abstract: An electrical energy storage system, a controller, and methods of using the same are provided. The system includes battery packs connected in parallel, one or more battery power management unit, one or more power converters, and a controller. The controller includes one or more processor and at least one tangible, non-transitory machine readable medium encoded with one or more programs configured to perform steps for discharging or charging. The steps include: reading data including state of health (SOH) and state of charge (SOC) from each battery pack, connecting a respective battery pack with a respective power converter; receiving a power command from an energy management system, calculating a respective power rate of each battery pack based on the data of SOH, SOC, and the power command, and discharging power from battery packs to a grid or charging power to battery packs based on the power rate of each battery pack.

Abstract: The application relates to battery internal resistance detection device and method for power conversion device. The detection device includes a data acquisition module for acquiring a battery voltage and a battery current to obtain a DC voltage, an AC voltage, a DC current and an AC current, a first calculation module for receiving the AC current and the AC voltage at a certain instant to output a first internal resistance value and a battery capacitance, a second calculation module for receiving a plurality of DC currents and a plurality of DC voltages at multiple instants and the battery capacitance to output a second internal resistance value, and a selection module for receiving the first and second internal resistance value and selecting one of the first and second internal resistance value as battery internal resistance value. The application improves detection accuracy of battery internal resistance by combining DC and AC algorithms.

Abstract: Provided is a wireless battery control system, a method and a battery pack. The system includes a master, and a plurality of slaves sequentially positioned at different distances from the master. The master wirelessly transmit a preparation signal when entering an ID assignment mode. Each slave wirelessly transmits Received Signal Strength Indicator (RSSI) of the preparation signal to the master when wirelessly receiving the preparation signal from the master or other slave during operation in a standby mode. The master wirelessly transmits an ID associated with the operation count to a slave having wirelessly transmitted a maximum RSSI among the RSSIs of the preparation signal, and increases the operation count by 1.

Abstract: An enhanced conductivity battery device for use in a battery jump starting device. The enhanced conductivity device providing enhanced conductivity from the enhanced conductivity device to a battery being jump started.

Abstract: Battery charging in a battery charging system (BCS) involves measuring an output voltage of a battery connected to the BCS and determining an output voltage type of the battery. The battery is also evaluated to determine a condition of the battery for accepting a charge. Based upon the evaluation the BCS performs can automatically initiate a charge cycle for the battery in accordance with the battery output voltage type which has been determined. The BCS can also trigger an indication that the battery is not in condition for accepting a charge. A range of output charging voltages is produced using a transformer, and a switch network.

Abstract: A battery pack includes: a charging voltage detector for detecting charging voltage applied to a charging path; a charging first transistor disposed in series on the charging path for controlling charging current flowing through the charging path; a charging second transistor for controlling operation of the charging first transistor; and a controller for controlling operation of the charging first transistor and the charging second transistor. Based on the charging current detected by a charging current detector and the charging voltage detected by the charging voltage detector, the controller can adjust the charging current for charging the battery block, by controlling second ON resistance that is ON resistance of the charging second transistor in a linear region of the charging second transistor, and by controlling first ON resistance that is ON resistance of the charging first transistor in a linear region of the charging first transistor using the second ON resistance.

Abstract: A wireless power receiver for wirelessly receiving power from a wireless power transmitter comprises: a power reception circuit receiving electromagnetic waves emitted from the wireless power receiver so as to output power having an alternating current waveform; a rectifier for rectifying the power, having an AC waveform, outputted from the power reception circuit into power having a direct current waveform; a DC/DC converter for converting, into a voltage of a preset level, a voltage of the power having a direct current waveform, the power being rectified by the rectifier; a charger for charging a battery by using the power having a DC waveform, converted from the DC/DC converter; an alternating current ground connected to the power reception circuit and/or the rectifier so as to receive at least a portion of the power having an alternating current waveform; and a direct current ground connected to the DC/DC converter and/or the charger so as to receive at least a portion of the power having a direct current

Abstract: A method controls a charging or discharging current of a removable battery pack and/or an electrical device, in particular a charging device, a diagnostic device or an electrical consumer, using a first monitoring unit integrated in the removable battery pack and a further monitoring unit integrated in the electrical device. The method includes monitoring a defined control potential of a signal or data contact between the removable battery pack and the electrical device using the further monitoring unit.

Abstract: An electronic device according to one embodiment of the present invention comprises: a wireless power reception unit for wirelessly receiving power from an external device; a communication unit for transmitting data to the external device; and a processor for controlling the communication unit such that the communication unit transmits data to the external device when power is received from the external device through the wireless power reception unit, and since data is transmitted to the external device on the basis of a signal outputted from the wireless power reception unit, the data can be transmitted to the external device without requiring separate settings.

Abstract: Embodiments are disclosed of an electronic power conversion apparatus. The apparatus includes a first circuit comprising a first plurality of bidirectional switches coupled in parallel and a second circuit comprising a second plurality of bidirectional switches coupled in parallel. The apparatus further includes a power converter circuit coupling the first and the second circuit. The apparatus includes a control circuit operatively coupled to the first and second plurality of bidirectional switches. The control circuit controls a state of each of the first and second plurality of bidirectional switches.

Abstract: A charging system and method using a motor driving system which can charge a vehicle battery using charging equipment providing various voltages using a motor driving system provided in a vehicle and improve charging efficiency by selectively determining a charging mode in response to an actual voltage state of the vehicle battery.

Abstract: A power supply device includes a plurality of battery modules, the battery modules are connected to one another in series according to a gate driving signal from a controller, the power supply device delays the gate driving signal in a gate driving signal processing circuit included in each of the battery modules, and thereafter, transmits the gate driving signal from an upstream to a downstream of the series connection, and the power supply device controls the battery modules by superimposing a control signal for the battery module on the gate driving signal.

Abstract: Provided are an apparatus and system for directing power flow between multiple devices, the apparatus comprising: one or more inlet ports for connection to one or more devices; a plurality of outlet ports configured for supplying electrical power; and a computing device configured to route power from the one or more inlet ports to the outlet ports. The system comprises a plurality of the apparatus connected to each other.

Abstract: An estimation system, includes: a secondary battery; a monitoring device that detects a voltage and a current of the secondary battery; and a processor that estimates a full charge capacity of the secondary battery using a detection result of the monitoring device. The processor calculates a first charging rate of the secondary battery using a current integration amount in charging, discharging, or charging and discharging of the secondary battery and using a full charge capacity of the secondary battery that was estimated last time; calculates a second charging rate of the secondary battery using an open circuit voltage of the secondary battery, when a predetermined time has elapsed without charging and discharging since the first charging rate is calculated; and performs correction, when a magnitude of a difference between the first and second charging rates is larger than a threshold, on the full charge capacity based on the difference.