Abstract: A charging dispenser includes a direct current (DC) electrical power input, a DC electrical power pass through output, and a DC electrical power charging output. The charging dispenser also includes a switching unit coupled to the DC electrical power input, the DC electrical power pass through output, and the DC electrical power charging output. Further, the charging dispenser includes a controller configured to provide control signals to the switching unit, the switching unit being configured, responsive to the control signals, to selectively electrically disconnect the DC electrical power input from the DC electrical power pass through output and electrically connect the DC electrical power input to the DC electrical power charging output of the charging dispenser and to selectively electrically connect the DC electrical power input to the DC electrical power pass through output and electrically disconnect the DC electrical power input from the DC electrical power charging output of the charging dispenser.

Abstract: A charging station includes an alternating current (AC) electrical power input and at least one direct current (DC) electrical power module coupled to the AC electrical power input. The charging station also includes at least one station output having a vehicle DC electrical power output, a communications output, and a dispenser DC electrical power output, the dispenser DC electrical power output being configured to be coupled to at least one dispenser. The charging station further includes a communications hub including at least one communications network connection, the communications hub being configured to receive information relating to an amount of DC electrical power to be delivered to a particular dispenser coupled to the charging station.

Abstract: A charging system includes a plurality of power charging cabinets, each power charging cabinet being configured with a plurality of electrical power outputs. The charging system also includes at least one power dispenser chain coupled to at least one of the plurality of electrical power outputs, each of the power dispenser chains having more than one addressable power dispenser electrically coupled thereto and each of the power dispensers being configured to be addressed based on a vehicle identifier of a vehicle coupled to an addressed power dispenser, each of the power dispensers also having a controller configured to control electrical power delivery to a destination chosen from a charging power output of the power dispenser and to another power dispenser in the power dispenser chain. The charging system further includes a central control system configured to communicate with controllers of the power dispensers of the at least one power dispenser chain.

Abstract: A system includes a computer processor configured to receive a vehicle identifier and a charging power dispenser identifier from a vehicle coupled to a specific charging power dispenser of a charging power dispenser chain. The system also includes a control program being configured to run on the computer processor, the control program being configured to determine a time to deliver power to the vehicle and an amount of power to deliver to the vehicle, the control program being further configured to send to a communication hub of a power cabinet electrically coupled to the charging power dispenser chain the time to deliver power to the vehicle, the amount of power to deliver to the vehicle, the vehicle identifier, and the charging power dispenser identifier.

Abstract: Various disclosed embodiments include illustrative charging systems, electrical dispensers, dispenser chains, methods of charging a vehicle, and methods of providing charging power to a vehicle. A charging system includes a power cabinet having at least one direct current (DC) power module. The charging system also includes at least one dispenser chain, each dispenser chain being electrically couplable to a respective DC power module. Each dispenser chain includes dispensers that are electrically couplable with each other in series and that are configured to dispense electrical power, each of the dispensers being controllable such that electrical power is dispensable by only one dispenser in its dispenser chain at a time.

Abstract: Power inverter assemblies are provided herein for use with motor vehicles. An inverter assembly may have a symmetrical structure configured to convert DC input power to AC output power. The inverter assembly may include a housing enclosing a symmetrical DC input portion, a symmetrical AC output portion, a DC link capacitor, and a gate drive portion having a pair of power modules. The symmetrical DC input portion can include a DC input bus bar sub-assembly to which the DC link capacitor is coupled, and a second DC bus bar sub-assembly that may electrically couple the DC link capacitor with the power modules. The symmetrical AC output portion may include a three phase output AC bus bar sub-assembly to which the power modules can be electrically coupled. A cooling sub-assembly may be provided for cooling the power modules with fluid transfer using a coolant.

Abstract: Power inverter assemblies are provided herein for use with motor vehicles. An inverter assembly may have a symmetrical structure configured to convert DC input power to AC output power. The inverter assembly may include a housing enclosing a symmetrical DC input portion, a symmetrical AC output portion, a DC link capacitor, and a gate drive portion having a pair of power modules. The symmetrical DC input portion can include a DC input bus bar sub-assembly to which the DC link capacitor is coupled, and a second DC bus bar sub-assembly that may electrically couple the DC link capacitor with the power modules. The symmetrical AC output portion may include a three phase output AC bus bar sub-assembly to which the power modules can be electrically coupled. A cooling sub-assembly may be provided for cooling the power modules with fluid transfer using a coolant.

Abstract: Circuits and methods for driving a load are disclosed. An exemplary driving circuit may include first and second switching devices electrically connected with each other in parallel. The driving circuit may also include a current sensing circuit configured to generate a current sensing signal indicating a value of a current flowing through the first switching device. The current sensing signal may include an offset caused by parasitic inductance imbalance in electrical connections connecting the first and second switching devices. The driving circuit may further include a driver circuit configured to control switching operations of the first and second switching devices. The driver circuit may include an overcurrent protection circuit electrically connected to the current sensing circuit.

Abstract: A three-phase current sensor for measuring currents running in three conductors of a three-phase conductor system includes at least a first magnetic measuring device. The magnetic measuring device includes a magnetic circuit provided with at least two gaps and a magnetic field sensor arranged in each gap of the magnetic circuit. The magnetic field sensors are positioned on both sides of a cavity sized to receive one of the three conductors. The gaps and thus the magnetic field sensors are positioned such that stray magnetic flux from an adjacent conductor has substantially equal amplitude passing through each of the sensors.

Abstract: A three-phase current sensor for measuring currents running in three conductors of a three-phase conductor system includes at least a first magnetic measuring device. The magnetic measuring device includes a magnetic circuit provided with at least two gaps and a magnetic field sensor arranged in each gap of the magnetic circuit. The magnetic field sensors are positioned on both sides of a cavity sized to receive one of the three conductors. The gaps and thus the magnetic field sensors are positioned such that stray magnetic flux from an adjacent conductor has substantially equal amplitude passing through each of the sensors.

Abstract: A system for interconnecting parallel insulated gate bipolar transistor (IGBT) modules is provided. A pair of switches selected from a plurality of the IGBT modules are assigned to a driver integrated circuit (IC). In the pair of switches, a master IGBT switch is selected, the other switch being a slave IGBT switch. A command signal from the driver IC is electrically coupled to both the master and slave IGBT switches. The master and slave IGBT switches both have protective circuits; however, the driver IC is electrically coupled to the protective circuits of the selected master IGBT switch only. The protective circuits include temperature and current sense circuits. The plurality of the IGBT modules may be formed by two hexpack power modules. The modules are configured such that only a single driver IC is needed for each pair of parallel IGBT switches, with equal current sharing of the paralleled modules.

Abstract: Systems and methods are disclosed for improving acceleration performance of an electric vehicle that includes an electric motor for propulsion. An exemplary system may include an inverter configured to drive the electric motor. The inverter may include at least one power electronic device. The system may also include a torque capability controller. The torque capability controller may be configured to receive information indicative of a selection between a first mode and a second mode. The second mode may correspond to a higher torque to be output by the electric motor than the first mode. The torque capability controller may also be configured to apply a switching frequency to the at least one power electronic device. The switching frequency may have a lower value when the received information indicates the selection of the second mode than when the received information indicates the selection of the first mode.

Abstract: Systems and methods are disclosed for improving acceleration performance of an electric vehicle that includes an electric motor for propulsion. An exemplary system may include an inverter configured to drive the electric motor. The inverter may include at least one power electronic device. The system may also include a torque capability controller. The torque capability controller may be configured to receive information indicative of a selection between a first mode and a second mode. The second mode may correspond to a higher torque to be output by the electric motor than the first mode. The torque capability controller may also be configured to apply a switching frequency to the at least one power electronic device. The switching frequency may have a lower value when the received information indicates the selection of the second mode than when the received information indicates the selection of the first mode.

Abstract: A system for interconnecting parallel insulated gate bipolar transistor (IGBT) modules is provided. A pair of switches selected from a plurality of the IGBT modules are assigned to a driver integrated circuit (IC). In the pair of switches, a master IGBT switch is selected, the other switch being a slave IGBT switch. A command signal from the driver IC is electrically coupled to both the master and slave IGBT switches. The master and slave IGBT switches both have protective circuits; however, the driver IC is electrically coupled to the protective circuits of the selected master IGBT switch only. The protective circuits include temperature and current sense circuits. The plurality of the IGBT modules may be formed by two hexpack power modules. The modules are configured such that only a single driver IC is needed for each pair of parallel IGBT switches, with equal current sharing of the paralleled modules.

Abstract: Circuits and methods for driving a load are disclosed. An exemplary driving circuit may include first and second switching devices electrically connected with each other in parallel. The driving circuit may also include a current sensing circuit configured to generate a current sensing signal indicating a value of a current flowing through the first switching device. The current sensing signal may include an offset caused by parasitic inductance imbalance in electrical connections connecting the first and second switching devices. The driving circuit may further include a driver circuit configured to control switching operations of the first and second switching devices. The driver circuit may include an overcurrent protection circuit electrically connected to the current sensing circuit.

Abstract: Methods and systems are provided for controlling an electrical system of a vehicle. Sensors are used to obtain first data for a first path of calculations and second data for a second path of calculations. The first path comprises a first plurality of calculations of generating a value of a parameter pertaining to the electrical system, and the second path comprises a second plurality of calculations of monitoring the electrical system with respect to the first path. A processor is coupled to the plurality of sensors, and is configured to determine whether a data frozen flag is active, perform the first plurality of calculations of the first path using the first data if the first data flag is inactive, and perform the second plurality of calculations of the second path if the first data flag is active.

Abstract: Circuits and methods for driving a load are disclosed. An exemplary driving circuit may include a plurality of switching devices and a controller electrically connected to the plurality of switching devices. The controller may be configured to provide a switching signal for controlling switching operations of the switching devices. The controller may also be configured to determine whether the switching signal falls within a predetermined dead zone. When it is determined that the switching signal falls within the predetermined dead zone, the controller may be configured to modify the switching signal by moving a space vector corresponding to the switching signal to a boundary of the predetermined dead zone. In addition, the controller may be configured to provide the modified switching signal to the switching devices.

Abstract: A three-phase current sensor for measuring currents running in three conductors of a three-phase conductor system includes at least a first magnetic measuring device. The magnetic measuring device includes a magnetic circuit provided with at least two gaps and a magnetic field sensor arranged in each gap of the magnetic circuit. The magnetic field sensors are positioned on both sides of a cavity sized to receive one of the three conductors. The gaps and thus the magnetic field sensors are positioned such that stray magnetic flux from an adjacent conductor has substantially equal amplitude passing through each of the sensors.

Abstract: A three-phase current sensor for measuring currents running in three conductors of a three-phase conductor system includes at least a first magnetic measuring device. The magnetic measuring device includes a magnetic circuit provided with at least two gaps and a magnetic field sensor arranged in each gap of the magnetic circuit. The magnetic field sensors are positioned on both sides of a cavity sized to receive one of the three conductors. The gaps and thus the magnetic field sensors are positioned such that stray magnetic flux from an adjacent conductor has substantially equal amplitude passing through each of the sensors.

Abstract: Power inverter assemblies are provided herein for use with motor vehicles. An inverter assembly may have a symmetrical structure configured to convert DC input power to AC output power. The inverter assembly may include a housing enclosing a symmetrical DC input portion, a symmetrical AC output portion, a DC link capacitor, and a gate drive portion having a pair of power modules. The symmetrical DC input portion can include a DC input bus bar sub-assembly to which the DC link capacitor is coupled, and a second DC bus bar sub-assembly that may electrically couple the DC link capacitor with the power modules. The symmetrical AC output portion may include a three phase output AC bus bar sub-assembly to which the power modules can be electrically coupled. A cooling sub-assembly may be provided for cooling the power modules with fluid transfer using a coolant.