Abstract: A method of charging a power storage mounted on a vehicle with electric power inputted to a charging port of the vehicle includes connecting a first charging path leading from the charging port via a first charger to the power storage and disconnecting a second charging path leading from the charging port via a second charger to the power storage, performing precharging of the first charger while the second charging path is disconnected and the first charging path is connected, determining whether or not the precharging of the first charger has been completed, and connecting both of the first charging path and the second charging path when it is determined that the precharging of the first charger has been completed.

Abstract: An electric vehicle charging system capable of generating electricity by solar energy comprises a fixed solar panel (1) fixed on a roof, a movable solar panel (2), a solar panel state control device (3) and an intelligent voltage conversion and control module (4). The solar panel state control device is connected to the intelligent voltage conversion and control module, and controls stretched and contracted states of the movable solar panel, output voltages of the solar panel fixed on the roof and the movable solar panel are connected in parallel, and then are connected to the intelligent voltage conversion and control module, and the intelligent voltage conversion and control module controls the solar panel to generate a maximum conversion rate and a maximum charging power under different light intensities in different time periods, realizes docking with the electric vehicle, and controls charging.

Abstract: An electronic device may include a battery, a multi-coil circuit including a first coil, a second coil, and a switch circuit connected between the first coil and the second coil, a wireless power transmission and reception circuit electrically connected to the multi-coil circuit, a power management module electrically connected to the battery and the wireless power transmission and reception circuit, and a processor electrically connected to the multi-coil circuit, the wireless power transmission and reception circuit, and the power management module, the switch circuit receives a first control signal based on a voltage detected from the second coil, a second control signal by the processor, and a third control signal by the wireless power transmission and reception circuit, and performs a switch-ON operation or a switch-OFF operation based on at least some of the first control signal, the second control signal, and the third control signal.

Abstract: A battery charging system includes a housing and an anti-theft mechanism. A battery pack can be coupled to the housing. The battery pack includes release buttons that allow removal of the battery from the housing. An anti-theft mechanism is coupled to the housing. The anti-theft mechanism includes an arm, a cover, and a lock. The arm extends away from the housing and can be engaged by a battery pack. The arm is movable in response to engagement by the battery pack. The cover is movable from a retracted position to a deployed position in response to the battery pack engaging the arm. The cover is configured to cover the release buttons in the deployed position. The lock is coupled to the housing and has a locked mode and an unlocked mode and is configured to maintain the cover in the deployed position when in the locked mode.

Abstract: This application relates to the field of charging management, and provides a method for detecting impedance of a charging cable, an electronic device, and a power supply device, to more accurately detect impedance of a charging cable. Calculating, by the electronic device, an impedance value of the charging cable according to a first source voltage detection value, a second source voltage detection value, a first final voltage detection value, a second final voltage detection value, a first current value, and a second current value.

Abstract: The present disclosure provides a smart connection device, a jump starter and a battery clamp. The smart connection device includes a switch circuit, a drive signal transmission module and a reverse connection detection module. The drive signal transmission module is configured to transmit a drive signal output by a controller to the switch circuit, so as to conduct the switch circuit. The reverse connection detection module is configured to detect a connection state of the external load through a load connection terminal, and output a corresponding control signal to the drive signal transmission module according to a detection result, wherein the control signal is configured to control a transmission of the drive signal by the drive signal transmission module.

Abstract: A smart wireless charging control system including at least one receiver and a transmitter is provided. The receiver is configured to receive a charging signal to be charged and to start operating. The transmitter is configured to transmit the charging signal to scan the receiver to charge the receiver during an initialization period. During the initialization period, the transmitter rotates an angle for transmitting the charging signal by the transmitter and records a time of transmitting the charging signal and the angle for transmitting the charging signal.

Abstract: An energy storage system includes a plurality of batteries coupled in series, a plurality of first isolated DC-DC power converters each having first and second sides, a DC bus coupled to the second sides of the plurality of first isolated DC-DC power converters, and a second isolated DC-DC power converter coupled in parallel with the plurality of first isolated DC-DC power converters. Each of the first sides of the plurality of first isolated DC-DC power converters is coupled to at least one of the batteries. The second isolated DC-DC power converter includes a first side coupled to the plurality of batteries and a second side coupled to the DC bus. The second isolated DC-DC power converter is configured to mitigate a transient load condition on the DC bus.

Abstract: The present invention relates to a relay driving circuit and a battery system for generating a gate voltage for controlling ON/OFF of a pre-charge relay, and provides a relay driving circuit that controls electrical connection between an external device and a battery pack, including: a transistor that receives a control signal of an enable level to perform an ON operation; a first resistor having a first end connected to a positive electrode of the battery pack and a second end connected to the relay, by the ON operation of the transistor; and a second resistor connected between the second end of the first resistor and the external device, the relay receives power supplied from the battery pack in a ratio of a resistance value of the second resistor to a sum resistance value of the first resistor and the second resistor to perform an ON operation.

Abstract: The present disclosure provides a charging module and a dual-mode wireless charging system. The charging module includes: a DC/DC converter circuit, a low-frequency charging unit, a high-frequency charging unit, and a controller. The low-frequency charging unit includes low-frequency coils, a low-frequency compensation circuit, and a low-frequency rectifier circuit connected to the DC/DC converter circuit being successively connected. The high-frequency charging unit includes high-frequency coils, a high-frequency tuning circuit, and a high-frequency rectifier circuit connected to the DC/DC converter circuit being successively connected.

Abstract: A system for wake-up control of parallel battery packs includes a first battery pack and a second battery pack connected in parallel. The first battery pack includes a first control unit, and the second battery pack includes a second control unit. The first battery pack is configured to receive a first trigger signal to wake up the first control unit. The first control unit of the first battery pack is configured to output a first driving signal after being woken up. The second battery pack is configured to receive a second driving signal sent from the first battery pack, and transmit the processed second driving signal to the second control unit of the second battery pack, to wake up the second control unit of the second battery pack. The second driving signal is output after the first driving signal is processed by the first battery pack.

Abstract: A wireless power transfer (WPT) system is provided to drive multiple resonator coils utilizing one power amplifier. The WPT system may include a power amplifier, a differential 1:N power divider, impedance inversion circuits and multiple resonator coils. The WPT system may further include auto-tuning circuits with sensors that facilitate the efficient driving of the multiple resonator coils. As well, there is provided various 3D shaped coil topologies that are comprised of two or more separate coils. The 3D coil topology designs each provide a particular 3D magnetic field for wireless charging.

Abstract: Interchangeable battery interface apparatus and modular battery systems employing interchangeable battery adapter apparatus are disclosed. Embodiments may be used for adapting tools, instruments, and/or other devices to use different rechargeable battery types on hosts with different battery interface geometries.

Abstract: A bidirectional charging system for an electric vehicle including a bidirectional terminal connected to the electrical network, a cable for connection to an electric vehicle, a control panel accessible from the terminal and a means of communication to the control system of the electrical network, the vehicle includes a bidirectional charger, said bidirectional charger allows the transfer of electrical energy from the terminal to the battery of the vehicle and vice versa, wherein the user of said vehicle can specify the minimum level of charge of the battery through the terminal of the control panel.

Abstract: A method includes receiving an indication of a charging current received at an on-board charging circuit of a vehicle from a source having a charging voltage. The on-board charging circuit includes a multi-phase traction motor, an inverter electrically coupled to the multi-phase traction motor and including an upper set of switching elements and a lower set of switching elements, and an energy storage device (ESD) electrically coupled to the inverter and having a storage voltage. The method includes determining whether the charging voltage is greater than or equal to the storage voltage. When the charging voltage is greater than or equal to the storage voltage, the method includes instructing at least one switching element in the upper set to operate in an on state and all of the switching elements in the lower set in an off state to cause fast charging of the ESD using the charging current.

Abstract: Bidirectional electric vehicle (EV) chargers for Combined Charging system (CCS) compatible EVs implementing alternating current (AC) charging for an EV and direct current (DC) discharging of the EV for providing backup power are disclosed. In one embodiment, a bidirectional EV charger includes a power input interface, a power output interface, and an EV charging interface configured to be electrically coupled with an EV charging port of an EV. The bidirectional EV charger further includes EV charging circuitry electrically coupled between with the power input interface and the EV charging interface; EV discharging circuitry electrically coupled between with the EV charging interface and the power output interface; and a controller electrically coupled with the EV charging circuitry and the EV discharging circuitry. The controller is configured for operating the bidirectional EV charger in a manner compliant to at least one version of the International Electrotechnical Commission (IEC) 62196 standard.

Abstract: The invention discloses method and apparatus for dynamic management and control of a lithium battery energy storage system and an electronic device. A battery management system (BMS) is configured to read a present operation data stream of each cell. A diagnosis apparatus is configured to extract a key battery parameter of said each cell from the present operation data stream and consistency thereof, compare the key battery parameter with historical data to determine whether a battery module fails, generate a control parameter according to a diagnosis result, and transmit the present operation data stream to an intelligent gateway and the control parameter to the BMS and an energy management system (EMS), to cause the EMS to dynamically change a charging/discharging control parameter for the battery energy storage system according to a present state of the battery energy storage system.

Abstract: A series-parallel switching method and apparatus, a power conversion circuit, and an electronic device are provided. The power conversion circuit includes a control unit and two power conversion modules. The two power conversion modules are connected in series or connected in parallel. Either of the power conversion modules includes output terminals and first switch branches, where the first switch branches are connected to the output terminals, and the output terminals are configured to connect to a load. The first switch branches are connected to the control unit, and the first switch branches are configured to switch an operating state according to a control signal output by the control unit, to provide an energy discharge loop when the two power conversion modules are switched from a parallel connection to a series connection, where the operating state includes a stopping state and a running state.

Abstract: Cell selection circuit is provided between n cells connected in series, where n is an integer of 2 or more, and inductor, and is provided at both ends of the selected cell and both ends of inductor can be conductive. Clamp circuit includes at least one clamp switch for forming a closed loop including inductor in a state where cell selection circuit does not select any cells. Current detection circuit detects the value of the current flowing through inductor. Low-pass filter band-limits the detection value. Overcurrent detection circuit activates the protection of inductor when the band-limited detection value exceeds the threshold.

Abstract: A power module adapted to a computer system is provided in the disclosure. The power module includes three batteries, a first voltage output terminal, a second voltage output terminal, a third voltage output terminal, and a charging/discharging control unit. The charging/discharging control unit determines a quantity of serially connected batteries based on a load signal of the computer system, to supply a first voltage to the first voltage output terminal, a second voltage to the second voltage output terminal, or a third voltage to the third voltage output terminal. The first voltage, the second voltage, and the third voltage correspond to different quantities of batteries. The disclosure further provides a power supply method.