Abstract: Provided are a power supply apparatus, and a charging method and system. The apparatus includes: a rectifier module (210) configured to rectify an alternating current (alternating current) voltage to obtain a first pulsating direct current (direct current) voltage; a conversion module (300) configured to convert the first pulsating direct current voltage to obtain a stable direct current voltage; and a valley-fill circuit (220) having an input terminal connected to an output terminal of the rectifier module (210) and an output terminal connected to an input terminal of the conversion module (300). The valley-fill circuit (220) is configured to release electric energy to the conversion module (300) when a voltage value of the first pulsating direct current voltage is smaller than a first voltage threshold, to increase a valley voltage of the first pulsating direct current voltage inputted to the conversion module (300).

Abstract: A vehicle includes a power storage device, a charging circuit capable of external charging by converting AC power from a power system to DC power and charging the DC power to the power storage device when the vehicle is connected to the power system external to the vehicle, and a controller programming to control the charging circuit. The vehicle includes a detection circuit configured to detect the impedance of the charging path from the power system to the power storage device during external charging. The controller is programmed to switch control of the charging circuit when the impedance of the charging path is higher than the threshold value during external charging, compared to when the impedance of the charging path is lower than the threshold value during the external charging.

Abstract: A transformer device according to the disclosure includes a transformer and a cooling device that cools the transformer. The transformer includes a primary coil, a secondary coil, and a first core and a second core, into which the primary and secondary coils are respectively inserted. The first and second cores are disposed to face each other. The first core includes a first core part and a second core part, each of the first and second core parts formed by dividing the first core in a predetermined division plane. The first and second core parts of the first core are disposed to face each other through a gap, and in which the first core and the cooling device are disposed to face each other.

Abstract: A battery assembly for an electronic vaporization device includes: a first circuit board for controlling operation of the electronic vaporization device; a second circuit board, stacked with the first circuit board, an orthographic projection of the second circuit board on the first circuit board not exceeding a maximum distance of the first circuit board in a length direction or a width direction; and a plurality of light emitting elements arranged on a surface of the second circuit board away from the first circuit board.

Abstract: The disclosure relates to the technical field of battery swapping, and in particular to a battery swap control method and system, a medium, an apparatus, and a battery charging and swap station. An objective of the disclosure is to solve a problem that battery swap time is forced to be prolonged due to a fault in a locking process.

Abstract: A wireless battery charging system and method including a frequency source to generate an alternating current at a preset resonant frequency, a primary-side rectifier to convert the alternating current to a direct current, and a high-frequency inverter to convert the direct current to another alternating current. A primary transformer generates an alternating magnetic field, a secondary transformer receives the alternating magnetic field and generates a stepped-down alternating current, and a feedback microcontroller controls the alternating current frequency to maintain a stable voltage at the load. The feedback microcontroller compares the current and delayed voltage at the load to determine the error and updates the frequency to compensate for changes in the coupling factor between the primary and secondary transformers.

Abstract: An information handling system determines that a relative state of charge (RSOC) on the battery is above a threshold RSOC. When the RSOC is above the RSOC threshold, the system determines that an initial temperature of the battery is within a first range, determines that a time rate of temperature increase on the battery is greater than a first slope, the first slope being determined based upon the first range, and discharges the battery to below the threshold RSOC in response to the determining that the time rate of temperature increase is greater than the first slope.

Abstract: An apparatus for controlling charge and discharge power in an energy storage system including a plurality of battery racks may comprise a first direct current/direct current (DC/DC) converter selectively connected to one of the plurality of battery racks to perform power conversion; a second DC/DC converter connected to the first DC/DC converter; and a controller for controlling the second DC/DC converter to perform an operation of maintaining the output of the first DC/DC converter while a switching between battery racks by the first DC/DC converter is being performed.

Abstract: A charging control method, and an electronic device are provided. The charging circuit includes a first power supply terminal, a second power supply terminal, a controller, a first switch, a second switch, a first charging chip, and a second charging chip. The second charging chip supports a fast charging protocol. The first power supply terminal is coupled to the first charging chip through the first switch and coupled to the second charging chip through the second switch, and the first power supply terminal is configured to be coupled to a charger. The first charging chip and the second charging chip are further coupled to the second power supply terminal, to be coupled to a battery. The first charging chip is coupled to a communication terminal of the charger. The first charging chip communicates with the charger to determine that the charger supports the fast charging protocol.

Abstract: A charging connection device for a drone according to an embodiment of the present invention comprises: a core installed on a drone; an electrically conductive member positioned on the outer contour of the core and formed of a conductive material; and a tension unit positioned between the core and the electrically conductive member and absorbing shock transmitted from the electrically conductive member.

Abstract: Positive electrode-side input terminal is connected to first positive electrode-side battery terminal, negative electrode-side input terminal is connected to second negative electrode-side battery terminal, a switch is connected between first negative electrode-side battery terminal and second positive electrode-side battery terminal, between second positive electrode-side battery terminal and first connection point between positive electrode-side input terminal and first positive electrode-side battery terminal, and between first negative electrode-side battery terminal and second connection point between negative electrode-side input terminal and second negative electrode-side battery terminal, positive electrode-side output terminal is connected to positive electrode-side converter output terminal, negative electrode-side output terminal is connected to negative electrode-side converter output terminal, positive electrode-side converter input terminal is connected to a line connecting positive electrode-si

Abstract: A thermometer charging case capable of lighting up automatically is provided. The thermometer charging case includes: a bracket configured to hold a thermometer; an upper shell arranged above the bracket and configured to cover the bracket; and a lower shell arranged below the bracket; wherein a circuit board is further arranged between the bracket and the lower shell, and an indicator light and a magnetic induction switch are further arranged on the circuit board; a magnet is further arranged on a lower side of the upper shell at a position corresponding to the magnetic induction switch; in a case where the upper shell is closed downward, the magnet is close to the magnetic induction switch; in a case where the upper shell is opened upward, the magnet is away from the magnetic induction switch.

Abstract: A charging device includes a PFC circuit, a first DC conversion module, a second DC conversion module, a switch module, and a control module. The PFC circuit includes at least three-phase bridge arm and is configured to perform PFC on an input AC and output a DC signal after the PFC. The first DC conversion module and the second DC conversion module are coupled to the PFC circuit to convert the AC signal. The switch module configured to turn on the three-phase bridge arm of the PFC circuit during three-phase charging or turn on one of the three-phase bridge arm of the PFC circuit during one-way charging. The control module is connected to the PFC circuit, the first and second DC conversion modules, and the switch module to control the charging device to perform single-phase charging or three-phase charging.

Abstract: An electric work vehicle comprises: a battery configured to store electric power; a motor generator conductively connected to the battery; a power transfer device having a power output shaft configured to transfer motive power from the motor generator; and a controller configured to switch between a first mode and a second mode.

Abstract: The present disclosure relates to a loading and unloading platform for a logistics vehicle, including a loading and unloading platform having a platform main body, an accommodating chamber arranged within the platform main body, and a loading and unloading docking area provided at a side of the platform main body; and a charging apparatus having a charging host and a charging pile, the charging host arranged within the accommodating chamber, the charging pile arranged in the loading and unloading docking area, and the charging pile configured to be electrically connected with a logistics vehicle to charge the same.

Abstract: A solid-state battery includes a power storage part including a battery cell and configured to flow current to an allowable upper limit value, a current restriction part configured to adjust discharge current of the power storage part under control, and a controller configured to control the current restriction part to flow the discharge current of the power storage part by restricting the current to a first current value or less that is smaller than the allowable upper limit value when a temperature difference of a predetermined value or more occurs between two points of a first point and a second point by measurement results of both the first point and the second point determined on a surface related to the power storage part.

Abstract: Presented herein is a system and method for wireless power transmission (WPT) charging of a battery of a stationary electric vehicle (EV). The system comprises a plurality of autonomous mobile platforms adapted to charge the battery, wherein: the autonomous mobile platforms are configured to fit under the EV; and one or more autonomous mobile platforms are assigned in succession by the central control system to fully supply the charging requirements of the EV. Also presented is a method for maximizing inductive WPT charging of a battery of a stationary EV.

Abstract: Embodiments of this application provide a charging circuit and a terminal device, applied to the technical field of terminals. The charging circuit includes a charging interface, a charging management module, and a cell, where the charging management module is connected to the charging interface and is configured to step down a charging voltage inputted from the charging interface to obtain an output voltage, and increase a charging current inputted from the charging interface to obtain a total output current, where the output voltage is 1/N times the charging voltage, the total output current is N times the charging current, and N is a positive integer greater than 2; and the charging management module is further connected to the cell and is configured to input the output voltage and the total output current to the cell to charge the cell.

Abstract: The present disclosure relates to a dual battery system (1) comprising a first battery (B1) and a second battery (B2), for balancing charge level of the first battery and the second battery, the dual battery system being adapted for powering propulsion of an electric vehicle (3) comprising a first electric motor (E1) coupled in driving relationship with one or more rear wheels of the electric vehicle and a second electric motor (E2) coupled in driving relationship with one or more front wheels of the electric vehicle. The first battery is adapted to provide electric power for driving the first electric motor and the second battery is adapted to provide electric power for driving the second electric motor. The dual battery system obtains (100) at least one of data or information of a predetermined and/or imminent charging event of the electric vehicle. The dual battery system furthermore obtains (200) at least one of data or information of charge level of the first battery and second battery respectively.

Abstract: A control device for a ground power supply apparatus judges if it has received from one moving body among a plurality of moving bodies a first signal notifying it that the one moving body has become an immobilized state on an electrified road at which a ground power supply apparatus has been installed. The control device, if receiving the first signal, when receiving from another moving body among the plurality of moving bodies, a power supply request signal requesting noncontact power supply at the ground power supply apparatus or an approach signal notifying it of approach the ground power supply apparatus, sends to the other moving body originating the power supply request signal or approach signal a second signal notifying it that there is a moving body in an immobilized state present on the electrified road.