Abstract: A tailgate deactivation system. A switch includes two terminals configured to be electrically coupled to a tailgate power circuit that supplies power to at least a portion of a tailgate of a vehicle, and an actuator configured to electrically couple the two terminals in an on state to allow power to flow in the tailgate power circuit, and to electrically decouple the two terminals in an off state to inhibit power from flowing in the tailgate power circuit.

Abstract: A multi-phase power inverter for an electric propulsion system includes a plurality of T-type multilevel power converters arranged between a high-voltage direct current (DC) power supply and an electric machine. Each of the plurality of T-type multilevel power converters is a solid-state integrated circuit that includes a positive DC power bus, a negative DC power bus, a neutral bus, and a plurality of semiconductor switches disposed in a stacked arrangement. The plurality of semiconductor switches is interconnected via the positive DC power bus, the negative DC power bus, and the neutral bus.

Abstract: A power supply control device is to be installed in a vehicle. The power supply control device controls power supply via a semiconductor switch and a fuse by turning the semiconductor switch ON or OFF. The semiconductor switch and the fuse are mounted on a circuit board. In the fuse, two long plate-shaped terminals are arranged in a row. The fusing portion and a part of the two terminals are covered with a housing having heat resistance. The two terminals are disposed in a current path of a current flowing through the semiconductor switch. The current flows through the fusing portion. If the temperature of the fusing portion exceeds a predetermined temperature, the fusing portion is fused.

Abstract: A power conversion device includes a major circuit part converting a power of a distributed power source into AC power corresponding to a power system, and a controller controlling an operation of the major circuit part; the controller includes an estimated value calculation part and a reactive power calculation part; the estimated value calculation part calculates an estimated value of a resistance component of a system impedance of the power system, an estimated value of a reactance component of the system impedance, and an estimated value of a voltage value of the infinite bus power system based on an active power value of a connection point to the power system, a reactive power value of the connection point, and a voltage value of the connection point.

Abstract: A distributed hybrid propulsion system is provided and includes an engine assembly that includes an engine, which is non-propulsive, an energy storage element, a motor-generator and a common bus to which the engine assembly, the energy storage element, the motor-generator and the controller are connected. The common bus includes bi-directional power flow control elements, which are controllable to manage bi-directional power flow between the engine assembly, the energy storage element and the motor-generator.

Abstract: A power transmitter for wireless power transfer includes a sensing system, a feedback mechanism and a control and communications unit includes a controller configured to receive object detection data from the sensing system, if a power receiver is detected, reset an alert timer, if the power receiver has been detected and a disconnect is detected, determine if an alert timer value is greater than an alert threshold, if a disconnect is detected and the alert timer value is greater than the alert threshold, instruct the feedback mechanism to output an alert. The power transmitter further includes an inverter circuit configured to receive a direct current (DC) power and convert the input power to a power signal and a coil configured to transmit the power signal to a power receiver, the coil formed of wound Litz wire and including at least one layer, the coil defining, at least, a top face.

Abstract: Systems and methods for managing the distribution of electrical power are disclosed. The system can maintain a status of each account of a plurality of accounts. Each account can correspond to an electrical power generation device, an electrical power consumption device, and an electrical power transmission device. The system can generate a first record object in response to the generation of a unit of power. The system can identify a first path identifying a source device and a destination device to transmit the unit of power. The system can generate a control signal to route the unit of power from the source device to the destination device. The system can update an event tracker to indicate the routing of the unit of power. The system can generate a second record object corresponding to the destination device. The system can update a second account to include the second record object.

Abstract: When the voltage value of the capacitor included in the PCU is equal to or higher than a predetermined value, the vehicle power supply device turns on both the positive switching element and the negative switching element corresponding to one of a plurality of resistors so as to activate the one resistor connected to the initially disabled PCU. In addition, the vehicle power supply device turns on both the positive switching element and the negative switching element corresponding the other one of the resistors so as to deactivate the one resistor and activate the other one resistor based on a predetermined condition.

Abstract: A sensor assembly for sensing a physiological characteristic of a user includes a power source, a power control switch, and a power latch within a housing. The power control switch is electrically coupled to the power source, and is configured to inhibit delivery of power from the power source to one or more components of the sensor assembly before deployment of the sensor assembly to a user, and deliver power from the power source to the one or more components of the sensor assembly in response to the deployment of the sensor assembly to the user. The power latch is configured to, upon the deployment of the sensor assembly to the user, latch an output of the power control switch to maintain the delivery of power from the power source to the one or more components of the sensor assembly while the sensor assembly is in a deployed state.

Abstract: A power supply system can include an electrical power source and a power converter connectable to a load. The electrical power source can provide a first DC voltage with a first potential difference (VH) between a first DC potential output and a second DC potential output, and a third DC potential output having a potential between the potential at the first DC potential output and the potential at the second DC potential output. The power converter can provide a second voltage with a second potential difference (VL) between a first potential output (V+) and a second potential output (V?). The second potential difference (VL) can be less than the first potential difference (VH). The power converter can electrically isolate the first DC voltage from the second voltage, and the second potential output (V?) can be connected to the third DC potential output using a first connection including an impedance.

Abstract: Systems, methods and apparatus for wireless charging are disclosed. A charging device includes a power transmitting coil, a transformer and a driver circuit. The power transmitting coil may be configured to produce an electromagnetic flux centered on an axis that is substantially perpendicular to a plane surface of the planar magnetic core. The transformer may be located adjacent to the planar magnetic core and the driver circuit may be configured to use a stepped-up voltage received from the transformer to provide a charging current to the power transmitting coil. The transformer may include a magnetic half-core that contacts the planar magnetic core such that the planar magnetic core completes a magnetic path through the magnetic half-core.

Abstract: A power supply management circuit includes a first contact receiving a transmitted voltage, a second contact outputting the transmitted voltage, a relay coupled between the first contact and the second contact, a discharge unit coupled to the relay in parallel, and an activation unit coupled to the discharge unit. When the power supply management circuit receives a control signal, the discharge unit is turned on or off, and the relay enters into a switching procedure. When the control signal is an ON signal, the activation unit generates a driving voltage to turn on the discharge unit, the relay enters into a turn-on procedure, and the transmitted voltage is transmitted to the second contact through the discharge unit; after the switching procedure is completed, the activation unit stops generating the driving voltage to turn off the discharge unit, and the transmitted voltage is transmitted to the second contact through the relay.

Abstract: An electrical wiring device for delivering power to multiple mobile devices including: a housing having a faceplate; a first power delivery port accessible through the faceplate; a second power delivery accessible through the faceplate; an AC/DC converter disposed in the housing and configured to receive an AC signal from a connection to a source of AC mains power and to output a DC signal; a first DC/DC converter disposed in the housing and configured to receive the DC signal and provide a first DC output signal having a first power to a first power delivery port; a second DC/DC converter disposed in the housing and configured to receive the DC signal and provide a second DC output signal having a second power to a second power delivery port; wherein the first DC output signal is different from the second DC output signal.

Abstract: A tailgate deactivation system. A switch includes two terminals configured to be electrically coupled to a tailgate power circuit that supplies power to at least a portion of a tailgate of a vehicle, and an actuator configured to electrically couple the two terminals in an on state to allow power to flow in the tailgate power circuit, and to electrically decouple the two terminals in an off state to inhibit power from flowing in the tailgate power circuit.

Abstract: A power conversion device is connected to a power transmission line which is connected to a generator. The power conversion device includes a frequency detector that detects a system frequency, the system frequency being a frequency of an AC voltage on the power transmission line, a controller that generates a reactive power command value to compensate for a variation in the detected system frequency, and a power converter that outputs reactive power in accordance with the reactive power command value to the power transmission line.

Abstract: An automotive power system includes a traction battery, an electric machine, and one or more power cards each containing at least one power semiconductor switch and at least one Y-snubber that includes a series connected capacitor and resistor. The power semiconductor switches are arranged to form an inverter electrically connected between the traction battery and electric machine. The resistors are tuned to dissipate common mode noise associated with operation of the power semiconductor switches.

Abstract: An electrical energy storage device for use in an electrical distribution grid where storage may be located across various voltage transitions throughout the network, enabling energy to bypass stepdown transformers, monitoring on both sides of a transformer, and power conditioning to optimize transformer and grid performance.

Abstract: A relay array may connect an electrical device (e.g., an inverter, power converter, etc.) to a utility grid. Based on a detection of a power interruption or fault, the relay array may disconnect the electrical device from the grid to ensure safety or reduce damage to the electrical device or grid. The relay array may include one or more electromechanical relays (e.g., latching relays). A safety catch may prevent the latching relay(s) from changing states. The electrical device may be configured to facilitate removal of the safety catch once the ability to change states is desired. The latching relay(s) may also be supplied with a power pulse for changing a state of the latching relay(s). The power pulse may be provided by a power bank that may be maintained with power in case of a power interruption or fault.

Abstract: A bus bar assembly includes a first bus bar including a narrowing portion with a reduced cross-sectional area in a first direction between the end portions thereof, a second bus bar spaced from the first bus bar, an arc-blocking portion disposed to surround the narrowing portion at the least, a magnetic core disposed on the outside of the arc-blocking portion, and a housing accommodating respective portions of the first bus bar and the second bus bar, the arc-blocking portion, and the magnetic core.

Abstract: A power conversion device includes a main body portion that converts inputted current, an output portion that is separate from the main body portion and includes an output terminal portion that outputs current converted by the main body portion, and a conductive member that connects the main body portion and the output portion with each other and transmits the current from the main body portion to the output terminal portion.