Abstract: A half-bridge power supply comprises: a first switch electrically connected to an energy source and to a load; a second switch electrically connected to the energy source and to the load; and circuitry electrically connected to the first and second switches and configured to provide a dynamic dead time for the half-bridge power supply based on one of the first and second switches being turned off having forward current.

Abstract: A half-bridge power supply comprises: a first switch electrically connected to an energy source and to a load; a second switch electrically connected to the energy source and to the load; and circuitry electrically connected to the first and second switches and configured to provide a dynamic dead time for the half-bridge power supply based on one of the first and second switches being turned off having forward current.

Abstract: A measurement circuit device for a vehicle includes a power transistor and a voltage measurement circuit coupled to the power transistor that measures a voltage across the power transistor. The measurement circuit device also includes a microcontroller that determines a junction temperature using the measured voltage and adjusts a capacity of the power transistor based on the determined junction temperature. In some embodiments, the measurement circuit device may include a clamping device that clamps the voltage across the transistor when the transistor is off. The measurement circuit device may also include an analog-to-digital converter that converts the measured voltage from an analog value to a digital value.

Abstract: At least one embodiment is directed to a system including a motor, a battery that provides power to the motor, and control circuitry that provides one or more first current pulses to the motor using power from the battery to cause one or more second current pulses in the battery that heat the battery to a desired temperature while maintaining zero torque in the motor.

Abstract: At least one embodiment is directed to a system including a motor, a battery that provides power to the motor, and control circuitry that provides one or more first current pulses to the motor using power from the battery to cause one or more second current pulses in the battery that heat the battery to a desired temperature while maintaining zero torque in the motor.

Abstract: A measurement circuit device for a vehicle includes a power transistor and a voltage measurement circuit coupled to the power transistor that measures a voltage across the power transistor. The measurement circuit device also includes a microcontroller that determines a junction temperature using the measured voltage and adjusts a capacity of the power transistor based on the determined junction temperature. In some embodiments, the measurement circuit device may include a clamping device that clamps the voltage across the transistor when the transistor is off. The measurement circuit device may also include an analog-to-digital converter that converts the measured voltage from an analog value to a digital value.

Abstract: A converter includes a plurality of switching elements coupled between power signal lines that receive a first voltage from an external power source. The converter includes at least one capacitance, and at least one connector including a first port coupled to the first battery and a first power signal line of the power signal lines, a second port coupled to the second battery and a second power signal line of the power signal lines, and a third port coupled to an output line. The output line is coupled between the first battery and the second battery. The converter includes a resonant circuit coupled to the plurality of switching elements. During a charging mode, the plurality of switching elements, the resonant circuit and the at least one capacitance operate to balance voltages of the first battery and the second battery through the first, second, and third ports.

Abstract: A converter includes a plurality of switching elements coupled between power signal lines that receive a first voltage from an external power source. The converter includes at least one capacitance, and at least one connector including a first port coupled to the first battery and a first power signal line of the power signal lines, a second port coupled to the second battery and a second power signal line of the power signal lines, and a third port coupled to an output line. The output line is coupled between the first battery and the second battery. The converter includes a resonant circuit coupled to the plurality of switching elements. During a charging mode, the plurality of switching elements, the resonant circuit and the at least one capacitance operate to balance voltages of the first battery and the second battery through the first, second, and third ports.

Abstract: Embodiments of the present disclosure comprise fully redundant inverter safety switch off paths for inverter system fail safe/fail operational control of electrical drive systems in an electric vehicle. A safety switch according to embodiments described herein provides independent, redundant paths, for example, to high side and low side switches, to shut off electric motor output torque and ensure the safety state is achieved. An inverter safety switch as described herein can comprise a logic circuit including two AND gate and one two-way switch on each independent and redundant path. This design can be cost effective compared to current state of art designs using programable CPLDs or FPGAs and does not need to be programmed for each inverter. Additionally, such independent and redundant paths can eliminate the common cause or cascaded failures that can occur in prior safety switch designs.

Abstract: A converter includes a plurality of switching elements, at least one capacitance, and a resonant circuit. The plurality of switching elements include a first switching element coupled to a first control signal line that controls switching of the first switching element, a second switching element coupled to a second control signal line that controls switching of the second switching element, a third switching element coupled to a third control signal line that controls switching of the third switching element, and a fourth switching element coupled to a fourth control signal line that controls switching of the fourth switching element. The plurality of switching elements, the resonant circuit, and the at least one capacitance operate to convert a first voltage into a second voltage that charges a first battery and a second battery.

Abstract: Embodiments include a converter including a plurality of switching elements connected in series and coupled between power signal lines that receive a first voltage from an external power source. The converter includes at least one capacitance coupled between the power signal lines and coupled to the plurality of switching elements, a first battery and a second battery. The converter includes a resonant circuit coupled to the plurality of switching elements. A switching frequency of the plurality of switching elements is matched to a resonant frequency of the resonant circuit being such that, during a charging mode, the plurality of switching elements, the resonant circuit and the at least one capacitance operate to convert the first voltage into a second voltage that charges the first battery and the second battery.

Abstract: A converter includes a plurality of switching elements, at least one capacitance, and a resonant circuit. The plurality of switching elements include a first switching element coupled to a first control signal line that controls switching of the first switching element, a second switching element coupled to a second control signal line that controls switching of the second switching element, a third switching element coupled to a third control signal line that controls switching of the third switching element, and a fourth switching element coupled to a fourth control signal line that controls switching of the fourth switching element. The plurality of switching elements, the resonant circuit, and the at least one capacitance operate to convert a first voltage into a second voltage that charges a first battery and a second battery.

Abstract: Systems of an electrical vehicle and the operations thereof are provided. More particularly, a vehicle including a first charging port at a first location on the vehicle and a second charging port at a second location on the vehicle is provided. The first charging port of the vehicle may be different from the second charging port of the vehicle. That is, a standard associated with a receptacle of the first charging port may be different from a standard associated with a receptacle of the second charging port.

Abstract: A power module for a vehicle includes a bidirectional voltage converter to i) convert a first voltage to a second voltage and convert the second voltage back to the first voltage, and ii) convert the first voltage to a third voltage and convert the third voltage back to the first voltage. The power module includes one or more power sources coupled to the bidirectional voltage converter and to supply power to auxiliary components of the vehicle. The power module includes a controller to control the bidirectional voltage converter and the one or more power sources. The first voltage is for supplying power to a powertrain of the vehicle, and the second voltage and the third voltage are for supplying power to the one or more power sources.

Abstract: A power module for a vehicle includes a first bidirectional voltage converter to convert a first voltage to a second voltage and convert the second voltage back to the first voltage. The power module includes a second bidirectional voltage converter to convert the first voltage to a third voltage and convert the third voltage back to the first voltage. The power module includes a first battery coupled to the first bidirectional voltage converter to receive the second voltage, and a second battery coupled to the second bidirectional voltage converter to receive the third voltage. The power module includes a controller to control the first and second bidirectional voltage converters and the first and second batteries. The first voltage is for supplying power to a powertrain of the vehicle. The second voltage and the third voltage are for supplying power to the first and second batteries, respectively.

Abstract: A converter includes a plurality of switching elements, at least one capacitance, and a resonant circuit. The plurality of switching elements include a first switching element coupled to a first control signal line that controls switching of the first switching element, a second switching element coupled to a second control signal line that controls switching of the second switching element, a third switching element coupled to a third control signal line that controls switching of the third switching element, and a fourth switching element coupled to a fourth control signal line that controls switching of the fourth switching element. The plurality of switching elements, the resonant circuit, and the at least one capacitance operate to convert a first voltage into a second voltage that charges a first battery and a second battery.

Abstract: Embodiments include a converter including a plurality of switching elements connected in series and coupled between power signal lines that receive a first voltage from an external power source. The converter includes at least one capacitance coupled between the power signal lines and coupled to the plurality of switching elements, a first battery and a second battery. The converter includes a resonant circuit coupled to the plurality of switching elements. A switching frequency of the plurality of switching elements is matched to a resonant frequency of the resonant circuit being such that, during a charging mode, the plurality of switching elements, the resonant circuit and the at least one capacitance operate to convert the first voltage into a second voltage that charges the first battery and the second battery.

Abstract: Systems of an electrical vehicle and the operations thereof are provided. High-voltage interlock (HVIL) determines if a high-voltage system, such as a power source (e.g., vehicle battery), a load (e.g., vehicle motor), and conductors therebetween, have been properly connected. If not, battery contactor is not allowed to be closed or, if already closed, opened. A redundant HVIL system is provided to mitigate the false positives associated with an HVIL component failure.

Abstract: Systems of an electrical vehicle and the operations thereof are provided. High-voltage interlock (HVIL) determines if a high-voltage system, such as a power source (e.g., vehicle battery), a load (e.g., vehicle motor), and conductors therebetween, have been properly connected. If not, battery contactor is not allowed to be closed or, if already closed, opened. A redundant HVIL system is provided to mitigate the false positives associated with an HVIL component failure.

Abstract: A power module for a vehicle includes a first bidirectional voltage converter to convert a first voltage to a second voltage and convert the second voltage back to the first voltage. The power module includes a second bidirectional voltage converter to convert the first voltage to a third voltage and convert the third voltage back to the first voltage. The power module includes a first battery coupled to the first bidirectional voltage converter to receive the second voltage, and a second battery coupled to the second bidirectional voltage converter to receive the third voltage. The power module includes a controller to control the first and second bidirectional voltage converters and the first and second batteries. The first voltage is for supplying power to a powertrain of the vehicle. The second voltage and the third voltage are for supplying power to the first and second batteries, respectively.